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Connectorfromchina.com belongs to ourpcb group(ourpcbte.com) and was founded in January 2015.Here will share some of our growing experience true feelings.

22Jun 2016

There are three goals in designing PCBs for signal integrity and electrical performance. They are 1- PCB should be immune from interference from other systems 2- It should not produce emissions that cause problems for other systems. 3- It should demonstrate the desired signal quality. A common factor relating these three issues is electromagnetic waves.

When electromagnetic waves get into your system this is referred to as electromagnetic interference (EMI). On the flip side your PCB can be the source of EMI and cause problems for other systems. The ability for systems to “play nice together” is referred to as electromagnetic compatibility

The EMI interference is due to 1- Magnetic Fields and 2- Electric Field.

For the magnetic field interference loop inductance should be minimized to have less EMI and cross talk

When a trace on a PCB induces a voltage into an adjacent signal trace we call that a cross talk, which is bad because it generates noise in the adjacent signal trace. But if the second conductor is the PCB’s ground plane then that is good because it reduces the trace’s inductance and therefore the overall loop inductance of the circuit is reduced.

The smaller the loop inductance the smaller the EMI interference.

If the steady state DC circuit volume is physically large then it will generate large loop inductance hence results in large EMI and vice versa.

In an AC circuit if the ground trace is in close proximity to the signal trace then the inductance of trace is reduced that is the loop inductance of the closed loop circuits is reduced resulting in less EMI.

The ground plane or return plane can reduce the loop inductance and hence reduce EMI

For the electric field interference capacitive coupling should be tight so that electric field lines would not escape from traces. So to minimize cross talk, the signal and power traces should be close to ground / return trace. This is valid for both electric and magnetic interference.

For both magnetic and electric fields, the wider the ground path (area of conductor) the better the coupling and closer the signal or power conductor / path / trace is to the ground / return plane the better the coupling and lesser the EMI and crosstalk. The figure shows magnetic field (inductive) and electric field (capacitive) cross talk.

31Aug 2015

D SUB connector inquiry high current 3V3 D-SUB connectorn

Today a customer from India sent us a D-sub connector inquiry. He sent me the picture below.

D SUB connector inquiry 

 

 

 

 

 

 

First we confirmed the D-sub connector at one end. We sent customer our drawing and picture of our D-sub connector as below.  Both are OK. Then we confirmed the parameters according to the ordering information on the drawing.
D SUB connector inquiry3

 

 

 

 

 

 

 

 

 

D SUB connector inquiry2

D SUB connector inquiry

From the ordering information of the drawing, we can see, the letter N represents “without fork, without nut”, and if we replace the letter N with letter “H”, that means, “with back fork, with nut”. Customer requires the latter, without screws and nuts. So we choose “N”.

G0 stands for general gold flash plating, G1 stands for 3U” gold plating, with the number increased higher, the gold standard is higher and price is higher. Customer chooses G0.

The insulator color can be black, blue and white.  Black color as the picture above shows is OK for the customer. So part number should be HC6016-3V3FNG0B01.

D SUB connector inquiry

 D SUB connector introductionIn production, the cables must be soldered on the connector first, then goes injection molding of the housing.

We have arranged 2 free samples as the customer requires. Then tomorrow we shall go on the discuss of the cable and the other end of the connector.

Our strong points are Pin headers, Female headers, Box Header, Ejector header, IDC(FC), DIP, Machined Pin connector (Round hole), Micro Match, Picoflex, D-sub, cable assembly. D-SUB connectors are our strength, especially high current ones.

Thanks for choosing ConnectorFromChina. We are 5-Year Gold supplier in Alibaba, and our Trade Assurance Limit is US $17,000, which ensures on-time shipment and pre-shipment product quality.

Any questions, please contact us now and get an answer within 24 hours.

Emma Lu (Mob: +86-18032174586)

OurPCB Tech. LTD
www.ourpcb.com

www.connectorfromchina.com

Tel: +86-311-85981900 Ext 6053 

Fax: +86-311-85981877

Skype: sales3@ourpcbte.com

Email: sales53@ourpcb.com

30Aug 2015

Pin Header ordering information introduction

Hello friends! I just sent the pin header goods to my American customer on August 25. Today I would like to give you a brief introduction of the pin header ordering information, and hope it will be of some help when you choose the pin header you need.

pin header ordering information  

As I wrote in my last essay about pin header connector samples,  customer required the pin header to be 2*7 pins, dual row, gold plated, 2.54mm*2.54mm, straight.

 

 

 

Pin Header ordering information

According to his requirement, we choose our PH1125-12 XX XX S XXX X1 series,  S stands for straight, also means 180 degree. You can see from the sample picture below, the pin header is straight.

pin header connector samples

 

For the first parameter, it stands for No. of Pins, customer requires 2*7 pins, the last number “2”of PH1125-12 stands for 2 rows, so the No. of Pins should be 07.

Then the second parameter of Contact plating. G0 stands for Gold Flash. And we also have G1, G2, to G5, with the number bigger, the plating gold is more.  S0 means after the gold plating, Tin is plated. So the parts with SX is expensive than those with GX, because parts with SX need one more time of plating.

 

Customer requires Go as the sample picture shows.

Pin Header ordering information

Now comes the Pin length in Pin Header ordering information. As you can see from the drawing below, we customize the size to satisfy customer’s requirement.  A=3.05mm, B=8.0mm, so according to the pin heaer ordering information on the drawing L= A+B+2.5=13.55. We choose the first 3 numbers of 135.

size

 

For the last parameter, it stands for packing information. We can offer PE bag or Tube as packing, we choose PE bag as packing so it should be 0.

After confirming with the above information above with customer, we can finally conclude the part number should be PH1125-1207G0S13501.

 

 

 

 

Thank you for choosing ConnectorFromChina.com.

Emma Lu (Mob: +86-18032174586)

OurPCB Tech. LTD
www.ourpcbte.com

www.connectorfromchina.com
Add:3rd Floor,Nanhai Plaza

No.505 Xinhua Road,Xinhua District,Shijiazhuang,Hebei,China,050057

Tel: +86-311-85981900 Ext 6053

Fax: +86-311-85981877

Skype: sales3@ourpcbte.com

 

01Jul 2015

pin header connector samples sent from China

Long time no see, friends! How is everything going?

Yesterday I sent some pin header connector samples, as the picture shows below.  A customer from US asked us the pin header connector.

pin header connector samples

pin header connector samples

pin header connector samples2

 

 

 

 

 

 

 

He send us the drawing, and we confirmed that he need the pin header connector to be 2*7 pins, dual row, gold plated, 2.54mm*2.54mm, 10,000 pcs. We sent him our drawing and quotation, it is OK. But to confirm further, customer asked me to send some samples.

The US customer had a Ningbo supplier, who plans to send some goods to him. So we confirmed the Ningbo supplier’s contact information and send to samples.

We are both glad with our communications and we have great confidence with our quality and good luck for me!

Thank you for choosing ConnectorFromChina.com.

Emma Lu (Mob: +86-18032174586)

OurPCB Tech. LTD
www.ourpcbte.com

www.connectorfromchina.com
Add:3rd Floor,Nanhai Plaza

No.505 Xinhua Road,Xinhua District,Shijiazhuang,Hebei,China,050057

Tel: +86-311-85981900 Ext 6053

Fax: +86-311-85981877

 

20May 2015

connector specialist of China PCBA manufacture

Long time no see! What a busy day today!

No matter how busy and tired, I still enjoy sharing my working experience here. For me, it is a way to review, and for you, I will be very glad if you can learn something professional about connectors, PCB & PCBA, or some selling skills, or some philosophy about work and life. In addition, you also vitnessed my growth and the development of our company, both Connectorfromchina and OurPCB.

OK, now let us begin my work experience  sharing now.

How to make the most reliable connector specialist?

Before that, have you noticed that our website looks more briefly and better? Manager Zhao has just edited and changed some categories. I am also glad that  I gave him many advices and ideas and I saw they come true. It is a quite inspiring thing to see our masterpiece become better and better because of good team work, right? Our website, Connectorfromchina.com is our masterpiece.

This is also a step to our goal, the most reliable connector specialist. Roma was not built in a day.

connector specialist

Today after our engineers’ work, I sent a quotation of electronic components to a customer from Argentina. After a few hours, I got no reply and it was their day time just now. I called to make sure he received and see if he has any questions. The telephone number is OK, but I don’t know why I cannot get through. I will check the reason tomorrow.

I also made 2 quotations of PCBA, this is the second time I quotated for PCBA, as we talked before of connector selling experience papers, I came to this company a month ago. I met with some problems but finally thanks to my colleagues, they helped me a lot to solve them. I believe I can do it better next time.

The most reliable connector specialist, we will make it come true day by day and step by step.

Any comments and suggestions, please feel free to contact me. Thanks for choosing Connectorfromchina.

Emma Lu

OurPCB Tech. LTD
www.ourpcbte.com
Add:3rd Floor,Nanhai Plaza

NO.505 Xinhua Road,Xinhua District,Shijiazhuang,Hebei,China,050057

Tel: +86-311-85981900 Ext 6053

Mob: +86-18032174586

Fax: +86-311-85981877

Skype: sales3@ourpcbte.com

Email: sales53@ourpcb.com

 

18May 2015

connector specialists of China specialized in connectors

We strive to be the most reliable connector specialists of China. We have confidence we can make  it.

Just like you can judge a person by what he does, you can judge a company by what his employees do.

what we do to make connector specialists of China

connector specialists

All my stories I tell you, shows how we work. I think it shows we are making progress everyday, so our company is also moving forward, continues to offer good quality connectors at competitive price and best service. We believe we can be the most reliable connector specialists.

Last Friday I receive an inquiry of connectors from Russia. There are many types of connectors on his inquiry. I sent him the quotation at the same day at the soonest. And I called him to let him know. But it was about to be off work at his time, no one responsed.

Today I still received no email from, so I called him to make sure if he received my quotation of connectors.

This is the second time I called to a foreigner, PS: you know, I just come to this company and be a salesman of connectors a month ago, I talked that on my papers before. I still remember how anxious and excited I feel the first time I called to a foreigner. To my surprise, I called quite calmly and not  anxious at all.

He said he reviewed my email of connectors and he need a day or more to cosider it. In order to communicate easily and better, I advised him to connect on Skype. And he agreed and connected me on Skype.

Although there may still be a long way to go to be the most reliable connector specialists. But we are working hard and make progress everyday. We can make it.

Any comments and suggestions, please feel free to contact me. Thanks for choosing Connectorfromchina.

Emma Lu

OurPCB Tech. LTD
www.ourpcbte.com
Add:3rd Floor,Nanhai Plaza

NO.505 Xinhua Road,Xinhua District,Shijiazhuang,Hebei,China,050057

Tel: +86-311-85981900 Ext 6053

Mob: +86-18032174586

Fax: +86-311-85981877

Skype: sales3@ourpcbte.com

Email: sales53@ourpcb.com

 

17May 2015

electronic components store – connectorfromchina.com

On this quiet moning, I thought of a saying by Albert Einstein.

He said, everyday I remind myself that my inner and outer life are based on labours of other man, living and dead, and that I must exert myself  to give in the same measure as I have received and am still receiving.

Albert Einstein was an amazing physicist who clearly understood the laws of success and explain them like the way he did with his equations.

electronic components store – connectorfromchina.com

We, as an electronic components store, can also learn something from that sentense.

electronic components store

We, as an electronic components store, strive to be the most the most reliable electronic components solution expert.

To make it come true, we carefully select electronic components manufactures as our supplier. Connectorfromchina is a department of OurPCB Group, which we make it clear in papers before, electronic components supplier from China.

In OurPCB Group, during the PCB and PCBA service, we cooperated very well with many electronic components manufactures, those with good quality and competitible price. So we come up with an  idea, why not share these good electronic components manufactures to more customers who need them? So we strive to be the most reliable electronic components store.

So that is what we learnt from Albert Einstein’s lessons. Our company’s success are based on labours of our employees, good electronic components manufactures and good electronic components suppliers, so we work hard to give in the same measure or more, as we have received and are still receiving, to be the most reliable electronic components store to more customers all over the world.

Any comments and suggestions, please feel free to contact me. Thanks for choosing Connectorfromchina.

Emma Lu

OurPCB Tech. LTD
www.ourpcbte.com
Add:3rd Floor,Nanhai Plaza

NO.505 Xinhua Road,Xinhua District,Shijiazhuang,Hebei,China,050057

Tel: +86-311-85981900 Ext 6053

Mob: +86-18032174586

Fax: +86-311-85981877

Skype: sales3@ourpcbte.com

Email: sales53@ourpcb.com

 

 

 

15May 2015

connector selling tips sharing – connectorfromchina.com-1

Again glad to see you at this quiet Friday night. Today let us go on talking about some selling skills of connectors, that is connector selling tips sharing.

About connector selling tips sharing, we shall talk about it later for many times. Because we, Connectorfromchina, as a department of OurPCB Limited, focused on connectors trade.

connector selling tips sharing

connector selling tips sharing – connectorfromchina.com-1

Today we  share only one tip, making telephone calls with your customers.

I saw this tip just on web, by a famous foreign trade expert. He said, the most effective way of communicating with customers is making phone calles. Because most foreign trade salesmen are so shy that they are not confident enough to call their customers. If you make a call to  customer after you send an email or send emails to him, it is very easy for him to remember you, which will do a lot of good to your communication with customers.

In connector selling tips sharing, we talked for many times before the importance of good communication, like the parpers, connector selling work experience good service, Top Mount Header – Lithuanian customer’s order,  my selling experience reflected this point very well.

About today’s connector selling tips sharing, I remember our Manager Zhao, also emphasized the importance of making telephone calls. He said, if you send an email to customer and got no reponse, you don’t know if customer saw your email or not, the email may go to his junk mail folder. So making calls can not only help you confirm if your email has been reviewed, but also help you leave an impression on customer.

Manager Zhao also encouged me to call customer if necessary, and it really helped! Do you want a go? Just do it! I hope today’s connector selling tips sharing may give you some help.

Any comments and suggestions, please feel free to contact me. Thanks for choosing Connectorfromchina.

Emma Lu

OurPCB Tech. LTD
www.ourpcb.com
Add:3rd Floor,Nanhai Plaza

NO.505 Xinhua Road,Xinhua District,Shijiazhuang,Hebei,China,050057

Tel: +86-311-85981900 Ext 6053

Mob: +86-18032174586

Fax: +86-311-85981877

Skype: sales3@ourpcbte.com

Email: sales53@ourpcb.com

 

 

 

14May 2015

connectors brief introduction from China

Today let me give you a brief introduction of connectors from China.

Connectorfromchina.com was established in 2005, belongs to OurPCB GROUP. We Provide the high quality connectors at competitive price, including Board To Board Connector, Wire-to-board connector, I/O ConnectorTerminal Blocks, solar connector, Cable Assembly and other connectors.

connectors brief introduction from China

Board To Board Connector

Mostly the color of plastic is black and white. For connectors in white color, the material of plastic is PPS, and for black color ones, the material is LCP (Liquid Crystal Polymer), which has high stiffness, can withstand high temperature, and electrical insulation.

connectors brief introduction

 

 

 

 

Wire To Board Connector

Wire To Board Connector

 

 

 

 

I/O Connector

I O Connector

 

 

 

 

Solar Connector

Solar Connector

 

 

 

 

Terminal Blocks

Terminal Blocks

 

 

 

 

Cable Assembly

For cable assembly, mostly the cable is in color grey, we can also produce cable in red color, and also various colors as much as 10 colors.

Cable Assembly

 

 

 

 

Other Connector

other

 

 

 

 

About connectors brief introduction, or if you need any connector, any comments and suggestions, please feel free to contact me. Thanks for choosing Connectorfromchina.

Emma Lu

OurPCB Tech. LTD
www.ourpcb.com
Add:3rd Floor,Nanhai Plaza

NO.505 Xinhua Road,Xinhua District,Shijiazhuang,Hebei,China,050057

Tel: +86-311-85981900 Ext 6053

Fax: +86-311-85981877

Skype: sales3@ourpcbte.com

Email: sales53@ourpcb.com

 

12May 2015

electronic components supplier from China

It is again late at night now. Let us still talk about something professional about electronics and learn from each other.

Just as we talked before, our Chinese connectors are with good quality at competive price. At the same time, apart from connectors, we are still a good supplier of electronic components.

electronic components

We all know, OurPCB specialized in PCB and PCBA services since 2005 and have over 1500 clients all over the world, such as ABB, eldoLED, Coherent, Intel. We have our own  factories in China which can assemble BGA,LGA,QFN,QFP,SMT0201,DIP,SIP, etc, and our products are ISO9001, ISO14001,TS16949,UL certificated.

electronic components supplier from China

During the PCBA(Printed Circuited Board Assembly) manufacturing process, we cooperated very well with good electronic factories, not only of connectors, but also of many electronic components, such as IC, resistors, capcitors, diodes, transitors, etc.

We strive to be the most reliable supplier of electronic components. If you need any electronic components, please don’t hesitate to contact us!

We, with so many years of good cooperation with factories of electronic components, are sure to give you a satisfactory solution with best quality, of lowest price and quickest service.

There is something that is very important to make it clear. If you want any electronic components from us, please let us know, whether you want the original part numbers, or you can also accept alternatives, or replacements from other companies.

Because there are many factories in China, which can manufacture good quality electronic components, with same functions as those of famous electronic components factories, like Molex, TE, etc. But prices can be much lower than those of famous factories. So this is also a good choice.

Any comments and suggestions, please feel free to contact me. Thanks for choosing Connectorfromchina.

Emma Lu

OurPCB Tech. LTD
www.ourpcb.com
Add:3rd Floor,Nanhai Plaza

NO.505 Xinhua Road,Xinhua District,Shijiazhuang,Hebei,China,050057

Tel: +86-311-85981900 Ext 6053

Fax: +86-311-85981877

Skype: sales3@ourpcbte.com

Email: sales53@ourpcb.com

 

 

11May 2015

PCB Assembly designer and manufacturer in China

Silent night. At such quiet night, I cann’t help think something about my work and life.

Sometimes it is upsetting, it is frustrating to see no results after so much work. But there is an old saying that goes, as you sow, so will you reap. So I tell myself, hold on, we will get a big harvest one day.

Come on, let us go on talking about something professional about  PCBA, because we strive to be the most reliable PCB Assembly designer and manufacturer in China.

PCB Assembly designer and manufacturer in China

PCB Assembly designer

Recently a customer send us an inquiry. He wanted to make his circuit board smaller. He asked us to convert the original package of some parts to COB or anything else to make his printed circuit board assembly smaller.

I checked this inquiry with our engineer, and our engineer analyses that there are two ways.

 

First, to convert the circuit into on board chip, we need to copy the board first, and then redesign. In this case, there are 2 procedures. Both take time and work.

Second, we ask customer send us the specific features, functions or requirements of the PCBA, and we make a new design. This can be much easier and save much time. So we advised customer this way.

So what I want to say is, to be a good PCB Assembly designer, we confirm very well with our customers, to understand customers’ request. Then we asked our engineers what shall we do to save the most time, and advised customers. That is our attitude for best service.

Any comments and suggestions, please feel free to contact me. Thanks for choosing Connectorfromchina.

Emma Lu

OurPCB Tech. LTD
www.ourpcb.com
Add:3rd Floor,Nanhai Plaza

NO.505 Xinhua Road,Xinhua District,Shijiazhuang,Hebei,China,050057

Tel: +86-311-85981900 Ext 6053

Fax: +86-311-85981877

Skype: sales3@ourpcbte.com

Email: sales53@ourpcb.com

 

10May 2015

reliable connector solution specialist in China – 2

Now let us go on talking about what I learnt from our company since I came to OurPCB,  and how we make the most reliable connector solution specialist.

Just now we talked about I learned much professional knowledge, because we provide PCB& PCBA service for over 1500 customers around the world, with our own assembly factory.

reliable connector solution

reliable connector solution specialist in China – 2

Now apart from the professional knowledge, I learned a lot about providing good service.

Connectorfromchina has been committed to offering the “ultimate” level of customer service. We have a strong commitment to customer service. We understand the value of having a knowledgeable person there to answer your questions quickly.

This is key for us Connectorfromchina to make the most reliable connector solution specialist.

To answer customers’ questions more quickly and correctly, we keep learning professional knowledge of electronices every day, and we are making progress every day. If you have any questions, you can start chatting on line with us, you are welcome at any time.

Sometimes there is time zone difference between customers and us. We should pay more attentions to this. Working at the right time can make communication more easy and more effective.

Do you think so? Do you have any good idea to make a reliable connector solution specialist?

Any comments and suggestions, please feel free to contact me. Thanks for choosing Connectorfromchina.

Emma Lu

OurPCB Tech. LTD
www.ourpcb.com
Add:3rd Floor,Nanhai Plaza

NO.505 Xinhua Road,Xinhua District,Shijiazhuang,Hebei,China,050057

Tel: +86-311-85981900 Ext 6053

Fax: +86-311-85981877

Skype: sales3@ourpcbte.com

Email: sales53@ourpcb.com

10May 2015

reliable connector solution specialist in China – 1

It is rainning all day today, now it finally stopped. What a quiet night! At such quiet night, it is a good choice to think about life, of course, talking about work is also a good one.

It has been a month since I came to OurPCB Tech. LTD. Apart from a successfully order from a Lithuanian customer, I did learned a lot, not only about technical skills, but also in trading skills, or how to provide best service to be a reliable connector solution specialist.

reliable connector

reliable connector solution specialist in China – 1

Let me explain what I learnt from our company, OurPCB Tech. LTD, in details. What I learnt also reflects something of our company. We strive to be the most reliable connector solution specialist in China.

OurPCB Tech. LTD provides professional PCB&PCBA service for over 1500 customers around the world, with our own assembly factory built in April 2011. OurPCB’s assembly factory is equipped with many advanced machines. We can assemble BGA, LGA, QFN, QFP, DIP, SIP, etc. The smallest package form we can mount is 0201. Our factory also can provide programming, wiring, screwing, injecting and conformal coating service. Our products are ISO9001, ISO14001, TS16949, UL certificated.

I get access to many professional knowledge of electronic components, and knowledge of printed circuit board assembly processes. This largely opens a new horizon to me to the world of electronic science and technology, which enables me to see from another perspective what I learnt in my University.

And about how to provide good service, to make one of the most reliable connector solution specialist? Let us talk about it in next paper.

Any comments and suggestions, please feel free to contact me. Thanks for choosing Connectorfromchina.

Emma Lu

OurPCB Tech. LTD
www.ourpcb.com
Add:3rd Floor,Nanhai Plaza

NO.505 Xinhua Road,Xinhua District,Shijiazhuang,Hebei,China,050057

Tel: +86-311-85981900 Ext 6053

Fax: +86-311-85981877

Skype: sales3@ourpcbte.com

Email: sales53@ourpcb.com

08May 2015

Chinese connectors with good quality at competive price

Connectorfromchina is a department of OurPCB Tech. LTD, now let me tell you in detail why you choose us.

We specialized in PCB and PCBA services since 2005 and have over 1500 clients all over the world, such as ABB, eldoLED, Coherent, Intel. We have our own  factories in China which can assemble BGA,LGA,QFN,QFP,SMT0201,DIP,SIP…., and our products are ISO9001, ISO14001,TS16949,UL certificated.

During the PCBA(Printed Circuited Board Assembly) manufacturing process, we cooperated very well with good electronic component factories, espcially connector factories. We ordered many parts from them and use them in PCBA manufacturing, and the PCBA products work very well, which attracts more and more customers to us.

So you should never worry about the quality of our Chinese connectors, because all the Chinese connectors we sell have been tested and used by us, and we only sell those Chinese connectors which proved to be good in quality and durable.

Chinese connectors

Chinese connectors with good quality at competive price

Now the next reason is competive price. We offer competive price for our Chinese connectors. If you need any connctors, just send me an inquiry, and you will know our competive price.

Last but not the least, we can offer best service. From the first time when we confirm connectors well, to the delivery of final products, we communicate very well, which you can see from my papers before, right?

We think from the perspective of customers and we value every customer. Choose us without hesitation, we will not let you down!

Any questions, please feel free to contact me.

Emma Lu

OurPCB Tech. LTD
www.ourpcb.com
Add:3rd Floor,Nanhai Plaza

NO.505 Xinhua Road,Xinhua District,Shijiazhuang,Hebei,China,050057

Tel: +86-311-85981900 Ext 6053

Fax: +86-311-85981877

Skype: sales3@ourpcbte.com

Email: sales53@ourpcb.com

07May 2015

battery connectors  – connectorfromchina.com

It is again late at night. From yesterday evening to this evening, I have been dealing with a customer of battery connectors.

Now let us just talk about some technical issues about battery connectors today.

battery connectors

Let us begin from the packaging.

There are three kinds of packaging, that is in tray, in tube and in reel. Prices can be different because of different packaging. In general, packaging of reel is most expensive, of tube is less expensive and of tray is cheapest.

 

 

battery connectors – connectorfromchina.com

Except for the unit price, there is another charge of moulding cost.

For battery connectors, there are moulding cost of the plastic mould and terminal mould. If customer wants the packaging of reel, there is also moulding  cost for reel packaging.

So that are the technical features I learnt of battery connectors today. Any quesitions or inquiries,  welcome to discuss with me!

Emma Lu

OurPCB Tech. LTD
www.ourpcb.com
Add:3rd Floor,Nanhai Plaza

NO.505 Xinhua Road,Xinhua District,Shijiazhuang,Hebei,China,050057

Tel: +86-311-85981900 Ext 6053

Fax: +86-311-85981877

Skype: sales3@ourpcbte.com

 

05May 2015

usb connectors selling with best services_2

It is May 5th, the 2nd day after May Day holiday. It is again evening now, let us go on yesterday’s paper and discussing the update of usb connectors selling.

Yesterday I sent the drawing of the connector below to customer. Today customer replied, the connector of the drawing I sent him is of 5 contacts, and he wants connector of 4 contacts.

usb connectors selling

Imediately I asked our engineer if we have the usb connector of 4 contacts, and got the answer below, please see the drawing below.

 

I sent the drawing of 4 contacts to customer, and got positive answer that it was the connector he wants. He then asked me another connector, same like this but is of SMT.

usb connectors selling with best services_2

I confirmed again with our manager and good news, too, we also have this one. So I quote for both connectors and customer was very satisfied with our quick answer.

Customer are also OK with my quotation and asked me to send some samples to them. I will send the samples tomorrow.

U6110-04S0B01

 

U6110-04S0MB01 SMT

 

 

Today’s usb connectors selling experience taught me a lot. It made me aware of the importance of thinking and observing carefully. Customer’s email wrote very briefly, just said, need USB 4 pins.

I don’t quite understand at first, but after observing the drawing and picture of the connector for a while, it struck my head. I understand what customer want! That’s amazing! This usb connector selling experience is unforgettble.

Good luck for you and me! Let us call it a day!

Any questions or advices, let us discuss.

Emma Lu

OurPCB Tech. LTD
www.ourpcb.com
Add:3rd Floor,Nanhai Plaza

NO.505 Xinhua Road,Xinhua District,Shijiazhuang,Hebei,China,050057

Tel: +86-311-85981900 Ext 6053

Fax: +86-311-85981877

Skype: sales3@ourpcbte.com

Email add: sales53@ourpcb.com

05May 2015

PCBA assembly designer and manufacturer in China

Connectorfromchina is a department of OurPCB Group, one of china’s best PCB and PCBA company.

OurPCB Tech Limited was found in 2005, it provides professional PCB&PCBA assembly service for over than 1500 customers around the world. In order to satisfy more and more customers requirement about lead time and price, OurPCB built its own PCBA assembly factory in April 2011.
Our PCBA assembly factory is equiped with many advanced machines, e.g. Siemens HS50 placer, Siemens F5 Placer, Heller 1809 Reflow,Speedline MPM printer,OK intelligent solder iron,Otek Automatic Optical Inspection… we can assemble BGA,LGA,QFN,QFP,DIP,SIP…., The smallest package form we can mount is 0201. Our factory also can provide programming,wiring, screwing, injecting and conformal coating service. It have ISO9001 Certification.

PCBA assembly

PCBA assembly designer and manufacturer in China

A few days ago, I contacted with Hungarian customer. He wanted to make  a PCBA assembly, and sent me the GERBER file, but cannot provide the BOM(bill of materials).

I confirmed this problem with our engineer, and  we cannot know the BOM from the files he provided. If we get the sample, it is still hard to identify the part number of diodes, and we cannot measure the value of capacitor correctly. And we also need coordinate file for production on machine.

 

Even if we can deduce the BOM from the files, there still can be some problems. If customer made a mistake of the files,  the BOM we deduced will be different from what it really should be.

So there is nothing else we can do for this customer’s PCBA assembly.  All we can do is to be honest and tell him the truth.  Honest is the best policy, it is also our policy. Do you think so? Any good ideas or advices, let us discuss!

Emma Lu

OurPCB Tech. LTD
www.ourpcbte.com
Add:3rd Floor,Nanhai Plaza

NO.505 Xinhua Road,Xinhua District,Shijiazhuang,Hebei,China,050057

Tel: +86-311-85981900 Ext 6053

Fax: +86-311-85981877

Skype: sales3@ourpcbte.com

Email: sales53@ourpcb.com

 

04May 2015

Top Mount Header – Lithuanian customer’s order -1

Again, it is late at night, let us go on talking about the Top Mount Header, which is a Lithuanian customer’s order.

Top Mount Header

Top Mount Header – Lithuanian customer’s order -1

It is the first day that we work after the May Day holiday, we finally received the Lithuanian customer‘s payment. It is time to arrange the production.

He ordered two kinds of connectors, inlcluding Top Mount Header.

After I got the news that we received the payment, I sent a message to the Lithuanian customer, telling him the news first, and let him know that I will be arranging the production of  connectors, inlcluding Top Mount Header.

Then I began to prepare all the materials for the arranging the production, of  connectors, inlcluding Top Mount Header,  and sent it to our Manager Zhao. He told me the lead time is 2~3 weeks, just as we talked before with our Lithuanian customer.  He told me the lead time to push the factory when it is about the time.

Then I told my Lithuanian customer, that I have arranged the production well. Production began! He is so glad to hear the news, so do I.

And we can send a brochure of our company, OurPCB Tech. LTD,  together with the products when they were delivered to customer, advised by Manager Zhao.

I think what I do today also shows the quality of our service. That is, to react in time, to save more time, to inform the progress of the project in time to customer.

So far, everything went on smoothly. I hope it will also go on smoothly later. But if any problems arise, we will face the music and solve the problm. Good luck for me! Good night~

Emma Lu

OurPCB Tech. LTD
www.ourpcb.com
Add:3rd Floor,Nanhai Plaza

NO.505 Xinhua Road,Xinhua District,Shijiazhuang,Hebei,China,050057

Tel: +86-311-85981900 Ext 6053

Fax: +86-311-85981877

Skype: sales3@ourpcbte.com

Email: sales53@ourpcb.com

 

04May 2015

usb connectors selling with best services

It is the first day when we are back to work after May Day holiday. The weather is quite nice and cool. What a fine day!

I got an request for quotation of usb connectors today.

usb connectors

 

usb connectors selling with best services

First I reviewed the request of usb connectors, it is by an Israeli customer. He is looking for usb connectors, and he cannot provide the data sheet or drawing. He ask me to send him the data sheet.

It is wise of him to do so.  Because it is of importance to confirm the product well firstly, just as we talked before of connector selling, it is the same with usb connector selling. Even if customer doesn’t ask me for the datasheet of the usb connectors, I will still ask our engineer for the datasheet or drawing.

Datasheet or drawing of usb connectors shows clearly of the deatailed specitations of the product.

I sent the request of usb connectors to our engineer and got the drawing, and sent it to customer, by email and by Skype.  Now I just need to wait for customer’s confirmation.

There is a saying that goes, all work and no play makes Jack a dull boy.  It may be a good status to distinguish work and life clearly. But I think it just depends. If you feel happy to work, happy to think things about work, just go for it. I still think it is wise to learn more skills when you are young, thus you can have more choices later.

Good luck for me! Let us call it a day!

Do you think so? Any questions or advices, let us discuss.

Emma Lu

OurPCB Tech. LTD
www.ourpcbte.com
Add:3rd Floor,Nanhai Plaza

NO.505 Xinhua Road,Xinhua District,Shijiazhuang,Hebei,China,050057

Tel: +86-311-85981900 Ext 6053

Fax: +86-311-85981877

Skype: sales3@ourpcbte.com

 

03May 2015

connector supplier from China with best services

It is May 3rd today, we will be back to work tomorrow.  Let us go on talking about one of the strong points of our company, OurPCB Tech Limited. That is, no big deal, just some feelings.

connector supplier

Just like I talked before on last paper, about connector selling work experience,  confirming the product is the first step of our business in connector selling. If we make mistake for the first step, it may cause much unnecessary trouble afterwards. So we must take care, and it may take more time, to make sure the first step is OK.

 

 

connector supplier from China with best services

So for the Greece’s customer, it is a pity that we did not confirm well the coonetor within a day. But we need more time to make sure that we will not make a mistake. So we told our customer the truth. In fact, I was a little worried about what will happen, a little worried about if customer will not trust us.

But I think I should tell customer the truth, that we need more time to confirm the connector well, this is what we should do as a connector supplier.

Thanksfully, I saw what customer replied me, she said, “OK Emma! Looking forward to your updates!”

It is wise to tell the truth to customer, I think that is an aspect of offering good services as a connector supplier. There is a saying that goes, honest is the best policy. Honest is also our policy as a connector supplier.

Do you think so? Any questions or advices, let us discuss, not only about connectors, we can also discuss our PCB and PCBA products. We are not only a connector supplier, but also a manufacture of PCB and PCBA products.

Emma Lu

OurPCB Tech. LTD
www.ourpcbte.com
Add:3rd Floor,Nanhai Plaza

NO.505 Xinhua Road,Xinhua District,Shijiazhuang,Hebei,China,050057

Tel: +86-311-85981900 Ext 6053

Fax: +86-311-85981877

Skype: sales3@ourpcbte.com

02May 2015

connector selling work experience good service

It is May 2nd 2015. Yesterday I came back home, Mom said, you look thinner, but very much energetic. I am a little surprised to hear that, but also so glad about the way I look.  Anyway what I look shows what I feel. It shows I am love my work, including connector selling.

connector selling

The light went out last night, so I did not issue a paper. Today let us go on discussing something about my work, connector selling.

 

About the concept of our company: OurPCB, just as General Manager Wang said it last Friday on the meeting, is to offer products with the best quality, competitible price and excellent service. This concept should reflects in every aspect of our work, including including connector selling.

 connector selling work experience good service

How to offer the excellent service? What should we do? We should think from the perspective of customers, do all we can not to let them worry about their projects.

 

This attitude, this concept should be all along with all the process of the project. Take the Greece’s customer for example.

 

During the connector selling, the Greece’s customer want us to confirm the product, and let them know whether we have the product by Thursday. We were confirming on Thursday, but it is still not OK when it was about to be off work.

 

Confirming the product is the first step of our business in connector selling. If we make mistake for the first step, it may cause much unnecessary trouble afterwards. So we must take care, and it may take more time, to make sure the first step is OK.

 

Of course, we should take care of every step in connector selling, and on the basis of being careful, we try our best to give out solutions as soon as possible.

Do you think so? Any comments, let us discuss, of course, not only connector selling is OK, we can also discuss our other products, like PCB and PCBA.

Emma Lu

OurPCB Tech. LTD
www.ourpcbte.com
Add:3rd Floor,Nanhai Plaza

NO.505 Xinhua Road,Xinhua District,Shijiazhuang,Hebei,China,050057

Tel: +86-311-85981900 Ext 6053

Fax: +86-311-85981877

Skype: sales3@ourpcbte.com

 

 

30Apr 2015

wire connectors PCB and PCBA_connectorfromchina.com

It is about to be off work, and we don’t need to work tomorrow. It is human nature to be somehow excited, right?

But before that, still let me finish my work today.

wire connectors

For my Lithuanian customer, which we talked before, he already paid the day before yesterday, but because it may take a few days to receive it, we still haven’t receive it. And we will be off work during the May Day holiday, I won’t know even if we receive it. So I should tell him this situation first, in order not to let him worry about it.

Recently I am communicating with a customer in Greece. We are on a period of communicating to confirm the product. I shall tell her our three-day holiday, too.

 

wire connectors PCB and PCBA_connectorfromchina.com

And for another Janpan customer, he made an inquiry of connector, not wire connectors, we are waiting for him to send us the picture of the product. That is also to confirm the product. I just need wait for his reply, and watch out my mailbox.

There is a saying that goes, all work and no play makes Jack a dull boy.  It may be a good status to distinguish work and life clearly. But I think it just depends. If you feel happy to work, happy to think things about work, just go for it. I still think it is wise to learn more skills when you are young, thus you can have more choices later.

Let us call it a day! Have a nice holiday~ Any questions and advices, wire connectors or not, let’s discuss!

If you have any inquries about connectors, wire connectors or not wire connectors, and PCB & PCBA needs, welcome to conact me in any way below.

Emma Lu

OurPCB Tech. LTD
www.ourpcbte.com
Add:3rd Floor,Nanhai Plaza

NO.505 Xinhua Road,Xinhua District,Shijiazhuang,Hebei,China,050057

Tel: +86-311-85981900 Ext 6053

Fax: +86-311-85981877

Skype: sales3@ourpcbte.com

 

30Apr 2015

wiring connector PCB and PCBA service company from China

It is the last day of the beautiful April. Tomorrow is May Day holiday.

How time flies! It is over 3 weeks since I come to this company. I learned so many new things that I am glad to share it on this platform, not only wiring connector. I can also see my progress every day, and you can see it, also my potential customer can see it, inlcuding wiring connector customers.

wiring connector

Just now I attended a meeting held by our General Manger, he strengths the importance of good service.

He said, our sales work very hard, but it is not wise not letting our customers feel that. The most important thing is that, you should never let customer feel confused. You should inform customer in time what period the project is going on.

wiring connector PCB and PCBA service company from China

For example, our company: OurPCB Group not only do business about connectors, including wiring connector,  but also is one of China’s best PCB and PCBA companies. When we do business of PCBA, there are many procedures. First, when we receive a inquiry, we ask our quotation team for the quotation.

Then, if customer think our quotation is OK, and place an order. We should ask our buyer team to purchase the components and produced the printed circuited boards (PCB).  We should tell our customers when all the components and materials will be bought. If we cannot finish, we should tell customer the reason, what problems we meet, when all the components and materials will be OK. The same goes for wiring connector trading.

And next, solder the components to printed circuit boards. It is the same with the buying procedure. Tell customer how the project is going on. We should also tell customer if there are any problems, and discuss or just tell customer how it will be solved. The same goes for wiring connector trading.

To conclude, think from the perspective of customers. If you are customer, it is for sure that you care the project very much. So do you know what to do to now? Welcome to discuss with me!

Emma Lu

OurPCB Tech. LTD
www.ourpcbte.com
Add:3rd Floor,Nanhai Plaza

NO.505 Xinhua Road,Xinhua District,Shijiazhuang,Hebei,China,050057

Tel: +86-311-85981900 Ext 6053

Fax: +86-311-85981877

Skype: sales3@ourpcbte.com

29Apr 2015

connector sales tips pin header Top/Bottom Mount Header

It is late in the night  now, can you think of a picture, that a salesman is typing on her computer and thinking? Well, brain storm is coming!

Let us continue my last paper, OK? Let me go on sharing ideas about my last order about connector sales.

From the fist day I communicate with customer, to the time he paid, it is a week. Many people say, it was so fast. But from my last paper, we all know it could be even faster next time, right?

Now let us also summerize some tips which really benefits during connector sales.

Skype really helps a lot during connector sales, and I should also not forget QQ, the most widely usd chatting APP in China. Skype makes communicating with customers easily. We must know clearly what customer needs,  you can ask questions directly and get answers easily on Skype.

connector sales tips pin header Top/Bottom Mount Header

You can also leave a message even when he is not there during connector sales. Sometimes I wonder if it is fine to communicating with customers or manufactures on the weekends or in the evening after work. Manager Zhao, that is Hommer, said it is all OK. For the manufacture, you are helping selling his products,  and for customer, you are helping him buy what he needs. That sounds good, right? In fact I did so, communicating in time, and it turns out right.

The same goes for QQ for connector sales. Our manufacture is located in Guangdong Province, far from our company in Hebei Province. So their language can be difficult for me to understand sometimes, especially when they speak faster. And the details of connector should be clearly understood. So communicating by QQ, by writing it down can be a good choice. But if emergency, you can also make telephone calls,  for during connector sales and any sales work, it just depends.

Do you think so? Any questions or advices, let us discuss.

Emma Lu

OurPCB Tech. LTD
www.ourpcbte.com
Add:3rd Floor,Nanhai Plaza

NO.505 Xinhua Road,Xinhua District,Shijiazhuang,Hebei,China,050057

Tel: +86-311-85981900 Ext 6053

Fax: +86-311-85981877

Skype: sales3@ourpcbte.com

connector sales

 

 

 

29Apr 2015

pin header connector /Top/Bottom Mount Header_conectorfromchina.com

It is the penultimate day of Aprial, which means the most beautiful season in the world of Arial comes to an end. Somewhat sad and pity for the about to be lost beautiful time of a year.

Anyway, let us talk about something interesting, or something professional, something about our work, connectors. Thus we can make progress everyday and won a bright future, right?

It is somewhat exciting to hear the good news yesterday evening. What is the good news? My Lithuanian customer paid for the parts he ordered: pin header connector , Top Header and Bottom Mount Header.

After a week’s communicating with customer and manufactuer, changing the size of the connector, changing the height of connector, and changing the quantities for severals times, customer eventually paid. How do I feel? Excited?  Surprised? No, it is complex feelings, I cannot find a single correct word to describe it.

Just like when you went throught many failures, change and change again, you cannot bear it anymore and really want to give it up, but another voice tell you, hold on, carry on, pains will come to an end, and suddenly success comes. There is a beautiful and philosophy poem that goes, after endless mountains and rivers that leave doubt whether there is a path out, suddenly one encounters the shade of a willow, bright flowers and a lovely village.

pin header connector /Top/Bottom Mount Header

Today let me summerize this experience and see if we can find something of value. I did make a few detours, so I hope we can learn a lesson from it and save some time next time.

These are the drawings of the 3 connectors Lithuanian customer needed, pin header connector , Top Mount Header and Bottom Mount Header

Pin header connector
Bottom_mount_header
Top Mount Header

 

pin header connector /Top/Bottom Mount Header

Customer need 3 connectors,  pin header connector , Top Mount Header and Bottom Mount Header. If we think twice, or if we have some experiences, we can deduce that, customer need to combine these 3 connectors to one product, or saying, customer use these 3 connectors together.

So there must be some relationship between the 3 connectors. We cannot deduce the length of A, B, C of the pin header connector , and cannot deduce the height of the other 2 connectors. But we should know, the pitch of the pin header connector , Top Mount Header and Bottom Mount Header should be the same.

I did  make a detour here. Our manufactuer confirm the 2 connectors (pin header connector and Bottom Mount Header) very soon, but meet with difficulties with the last one. We confirm again and again, it seems our manufactuer cannot make it. In fact, I feel a little worry about the other connectors, too. Because if we cannot make one of the connectors, could you lost the chance of the other 2 parts, does the customer want to order 3 connectors from one company?

But suddenly, customer found he made a mistake with the drawing, he wrote the pitch 2.54mm, which should be 2.0 mm.  So our manufactuer confirm again and find the right connecter.

So after this experience, next time when I come across with customers requiring some parts, not one part, I will confirm first if there are relationships of the parts with customer, and if there are, I will confirm first if the size, pitch and other details are competible. This really matters and can avoid some trouble and save time. Do you think so? Any questions or advices, let us discuss.

Emma Lu

OurPCB Tech. LTD
www.ourpcbte.com
Add:3rd Floor,Nanhai Plaza

NO.505 Xinhua Road,Xinhua District,Shijiazhuang,Hebei,China,050057

Tel: +86-311-85981900 Ext 6053

Fax: +86-311-85981877

Skype: sales3@ourpcbte.com

28Apr 2015

connector salesman working experience sharing

There is a beautiful poem in Chinese, which means the most beautiful season, the most beautiful time of the world is Aprial in spring. In this beautiful season, I start off a new journey, to do foreign tade business about connector.

I just feel my life is filled with ups and downs since I become a connector salesman.

Generally speaking, it is all about communicating with people.

First, after communicating with our customers, I know what speciafications and features the connectors they need. This is of great importance. You must clearly knows the details, such as what the pitch is of the connector, what the height is of the conector, what type of the connector, what the size of the connector.

connector salesman

Then, as a a connector salesman, bring the specifications and features and all the details of the connector to our manufactures. Our engineers will check if we could manufacture it.  There are some times when we cannot produce the connector. At this time, we must tell our customers timely.

“To be a good connector salesman, one should think from the perspective of his customer.” Manager Zhao said it.  If we cannot make it, we may advise our customer if they need us to find another manufacture to make it possible.

connector salesman working experience sharing

And further, if our manufacture can make the product successfully, there are also many details which we should make clear, such as lead time, weight of one piece, unit price, shipping costs, transfer costs, and so forth. And we must send a formal email which includes those details.

What to do later? I am still learning. Maybe I will tell you next time. There is a saying that goes, Roses given, fragrance in hand. That is the meaning of this paper. And for me, it is also a way to learn and grow. Because there is also a famous saying in Chinese, if one can learn something new by reviewing the old, he is OK to be a teacher. Confucious said it.

 

27Apr 2015

connector classification introduction in cellphone

 

connector classification

 

There are many kinds of connectors on the phone, and FPC is one of them. Product categories can be divided into internal FPC connectors and board-to-board connectors, I / O connectors for external connection, and battery connectors and Camera Socket and so on.

connector classification introduction in cellphone

 FPC connector

FPC is short for Flexible Printed Circuit, that is to use a soft material (can be folded, bent material) to make PCB.

FPC connector FPC connector is to connect the LCD display to drive circuit (PCB), mostly it is 0.4mm pitch, 0.3mm pitch products also have been widely used. With the  trends of recent LCD drive being integrated into the LCD device, the number of pins of FPC will be a correspondingly reduced, and related products have appeared on the market currently. In the longer-term direction, FPC connector is expected to integrate with other phones on the frame or cell phone LCD module in the future.

connector classification introduction in cellphone

FPC connector is used widely in cellphones, it has several functions: First, to realize a simple circuit connection; for example, we often say that the screen “cable”, the second is to make complex circuits, PDA, etc. is used for that. With the increasing functions in mobile phone, FPC will be used more widely.

connector classification introduction in cellphone

Board-to-board  connector

Board-to-board  connector The development trend of board to board connectors on the mobile phone is pin pitch and height becoming smaller and smaller.  At present pitch is mainly 0.4mm, and it will develop to 0.35mm, or even smaller. In the future, it will require lower height and a shielding effect. Meanwhile BTB (board-to-board connectors) height is gradually reduced to 0.9mm.

connector classification introduction in cellphone

l / O Connectors

I / O connectors are one of the most important access channel, including the connection of two parts of the power and signal, reducing the volume and product standardization will be the main direction of future development. Now uses a more circular and Mini USB connectors, mobile phone with Micro USB connector under the impetus of the European Union and the GSM Association and gradually form a standardized development, the current mainstream is 5pin, due to the mobile phone manufacturers have their own cell phone plan, Micro USB connector allows development trends appear standardized and customized combination of headphone plug at the same time has the same connector as the development trend in 2012 will be mainly used abroad as a standard Micro USB charging interface, many famous mobile phone manufacturers all over the world have begun to take a substantial step. Later require thinner connector, with visual effects and waterproof functions.

connector classification introduction in cellphone

Battery connectors

Battery connectors connectors can be divided into shrapnel and guillotine. Battery connector technology trends are mainly small, new battery interface, low contact resistance and high connection reliability.

connector classification introduction in cellphone

So that is FPC connector Classification in cellphone. It includes internal FPC connectors and board-to-board connectors, I / O connectors for external connection, and battery connectors and Camera Socket and so on. To learn more about connectors, welcome to our Twitter 

26Apr 2015
connector basic properties brief introduction
The Basic properties of connector can be divided into three categories: the mechanical properties, electrical properties and environmental performance.

connector basic properties

One. Mechanical properties on connectivity.

The insertion force is an important mechanical properties. Plug into force insertion force and withdrawal force (pull force known as the separation force), the two requirements are different. There are standards in the relevant maximum insertion force and a predetermined minimum separation force, which indicates that, from the use point of view, smaller insertion force (LIF thereby low insertion force and insertion force ZIF no structure), while if the separation force is too small, will affect the reliability of the contact. The insertion force connector and mechanical life and contact structure (positive pressure size) contacting the coating quality parts (sliding friction coefficient) and contact arrangement dimensional accuracy (alignment degrees) related.

connector basic properties brief introduction

Two. Electrical properties. The main electrical performance of the connector includes a contact resistance, insulation resistance and dielectric strength.

① contact resistance of high-quality electrical connector should have a low and stable contact resistance.Connector contact resistance from a few to tens of milliohms milliohms range.

② measure the insulation resistance between the insulation performance indicators electrical connector contacts and the contact with the housing, of the order of several hundred to several thousand megohms megohm range.

connector basic properties brief introduction

③ said dielectric strength or resistance, voltage, medium voltage, is characterized by the ability to withstand the connector between contacts or contacts with the housing rated test voltage.

④ other electrical properties. EMI leakage attenuation of electromagnetic interference shielding effectiveness evaluation connector, EMI leakage attenuation of electromagnetic interference shielding effectiveness evaluation connector, generally in the frequency range of 100MHz ~ 10GHz test. RF coaxial connectors, as well as the characteristic impedance, insertion loss, reflection coefficient, voltage standing wave ratio (VSWR) and other electrical indicators. Due to the development of digital technology, in order to connect and transmit high-speed digital pulse signal, the emergence of a new type of connector that is high-speed signal connectors, accordingly, the electrical properties, in addition to the characteristic impedance, but also there are some new electrical indicators such as crosstalk (crosstalk), propagation delay (delay), Delay (skew) and so on.

connector basic properties brief introduction

Three. Environmental performance of common environmental performance. This includes temperature, humidity, salt fog, vibration, and shock.  

① Currently the maximum operating temperature is of 200 ℃ (except for a small number of special high-temperature connector), the minimum temperature is -65 ℃. Since the connector is working, current generates heat at the contact point, leading to temperature rise, it is generally considered to be equal to the ambient temperature of the operating temperature and the temperature rise of the junction and. In certain specification, specify the maximum temperature rise connector rated operating current allowed.

② moisture intrusion of moisture will affect the insulating properties of the connector, and corrosion of metal parts.Damp heat test conditions for a relative humidity of 90% to 95% (based on product specification, up to 98%), the temperature of + 40 ± 20 ℃, test time by product regulations, a minimum of 96 hours. Damp heat test is more stringent.

connector basic properties brief introduction

③ salt spray connector containing moisture and salt in the work environment, its metal structure, the contact surface treatment layer may produce galvanic corrosion, affecting the physical and electrical properties of the connector. In order to evaluate the tolerance of the electrical connector of this environment, provides for the salt spray test. It is suspended in the connector temperature controlled test chamber, with a compressed air discharge with a predetermined concentration of sodium chloride solution to form a salt spray atmosphere, and for a time specified by the product specifications, at least 48 hours.

④ vibration and shock resistance to vibration and shock are important properties of electrical connectors, such as aviation and aerospace, rail and road transport is particularly important in a particular application environment, it is to test the electrical connector mechanical structure robustness and reliable electrical contact an important indicator. In the relevant test methods are clearly defined. Impact test shall be provided that the peak acceleration, duration and impact pulse shape, and electrical discontinuity of time.

connector basic properties brief introduction

⑤ other environmental performance according to requirements, as well as other environmental sealing performance (air leakage, fluid pressure), liquid immersed electrical connector (abuse-resistant capabilities of the particular liquid), and low pressure.

26Apr 2015

Connector overview and constitution introduction

Connector is a component which electronic engineering technicians regularly deal with.

Its role is very simple: in the circuit between blocked or isolated barrier, to set up a bridge, causing current to flow to achieve the intended function of the circuit. Connectors are indispensable component of electronic devices.

Connector overview

If you observe current flow along the path, you will always find one or more connectors. Connector’s form and structure is diversified; with different application object, frequency, power, application environment, there are various types of connectors. For example, the connector of lighting on the court, connector of the hard drive, and connector for igniting the rocket are very different. But no matter what kind of connector, it should ensure a continuous and smooth flow of current.

It refers to, the connector is not limited to the switched current. With the rapid development of photonics technology in today’s fiber optic systems, transmission carrier is signal light, glass and plastic replaced the ordinary circuit conductors. But engineers also use connectors in the optical signal passage, and the connector’s function in the optical signal passage is the same with that in the traditional circuits.

Connector overview and constitution introduction

Accessories

Accessories include construction accessories and installation accessories. For construction accessories, there are collar, positioning key, pin, guide pins, connecting ring, cable clamps, seals, gaskets and other accessory structures. Installation accessories include screws, nuts, springs circle. There are stand accessories and general ones.

Connector overview and constitution introduction

Circuit identification

Because there is always a lot of connector pins, engineers must mark clearly to enable users recognize the pin numbers clearly to ensure the circuit work out all right.

Connector overview and constitution introduction

A seat body (housing)

The connector housing body has the following functions: supporting the contact parts (pins, springs, etc.), so that they were firmly seated; protecting the contact part from the conductor; the circuit insulation on each other. In-line connector features a wire connector from the half part of the access from the other half take out. These two parts are called plug connector (male head) and socket (female socket).

Connector overview and constitution introduction

The base (header)

For a connector mounted on a printed circuit board, the base they use is called the base body (header), also known as a base or wafer. The main difference between the base and the base body is always installed together with the circuit pins, and base body is just a shell. Base has two forms: no cover and hood. Shield means of pin and socket connectors, in intercourse with a base body part or guard around skirt made of a protective cover. The base uses friction-lock (friction lock style), which is part of the base has a cover, but having a locking device, which enables the combination of base and the seat body is more reliable.

Connector overview and constitution introduction

The use of a plastic seat body

The plastic seat body using is thermoplastics, can repeatedly melted and solidified. Collecting the remaining plastic shaping process, pulverized reused. With special plastic high-temperature environment, the plastic has excellent high temperature properties. For connectors of surface mount solder installation (SMT, surface mount method of termination) needs this kind of plastic. There is also a plug weld surface installation (SMC) connectors. SMC difference is that after the pin is inserted through the hole in the PCB soldering; and the use of SMT solder paste fillet on the PCB surface. Due to the need of welding, plastic must be resistant to heat. In other words, the surface mount connector with seat body, must be able to withstand high temperatures.

Connector overview and constitution introduction

The contact part

The contact portion of the connector in the two parts to be connected to the conductor (or wire) together. After binding, the circuit is turned on, current flows through the connector. There are two main types of contact part: Terminal and pin . Specific physical shape are varied.

Terminals (or pins) has two ends: the front-end and back-end. Always combined the front end, it forms a contact with another terminal intercourse. Always from the rear end terminating role, either crimped or successive wire (conductor).

Connector overview and constitution introduction

The coating

Electroplating the contact portion of the connector, in order to improve electrical conductivity, corrosion resistance and abrasion resistance, improved weldability. Metal having good mechanical properties (e.g. formability, elasticity), often do not have the excellent electrical conductivity, corrosion resistance and abrasion resistance and weldability.

Connector overview and constitution introduction

Plating metal properties

Tin and tin-lead alloys: a standard connector for most products coating to improve corrosion resistance and weldability for low grade products.

Gold: high-grade products for excellent corrosion resistance expensive (selective plating in key parts of the contact area).

Palladium Nickel (thin gold plated): gold cheaper than the excellent corrosion resistance of thin gold-plated to improve wear resistance than gold plating difficult.

Nickel: as a barrier layer plating.