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Request for guidance about connectors to chose
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YigalB 4 years ago
Hi Guys My PCB layout it pretty much finished, and functionally checked with a prototype, yet before going to manufacture, I would like to improve the external connectivity to the board. The need is for: a) 1 X  USB type C connector on board - for 5V power only (no data). b) 3 X 2 wire connection. Currently I use the 2.54 2-pins headers c) 1 X 4 wires connection. Currently I use the 2.54 2-pins headers. I kindly ask your advice, hoping your experience can help me with what library cell to select, as I am a newbie/ There are many cells in the library , I am not sure how to chose. 1. For the USB: what library cell to chose, with layout foot print to select? Such that will be also common and easy to purhcase. 2. for the wire connectors: Any recommendation for a connector that will provide the connectivity (2 pins, 4 pins), that will be protected from reversing mistakes? Again, it needs to be easy to purchase. All for TH, no SMT (at this stage). Thank you!
Comments
andyfierman 4 years ago
The only through-hole USB type C connector I could find on LCSC.com: [https://lcsc\.com/product\-detail/USB\-Connectors\_Jing\-Extension\-of\-the\-Electronic\-Co\-Jing\-Extension\-of\-the\-Electronic\-Co\-TYPE\-CFemale\-14PIN\-DIP\_C168704\.html](https://lcsc.com/product-detail/USB-Connectors_Jing-Extension-of-the-Electronic-Co-Jing-Extension-of-the-Electronic-Co-TYPE-CFemale-14PIN-DIP_C168704.html) There are a couple of others that are combined USB A and USB C this is the only USB C only part. ![image.png](//image.easyeda.com/pullimage/wOg4LjsHBxGoVWKRM1KuS0CdJj2otWwigu7qQWTI.png) You haven't said what signals or power are going through your connectors or your mechanical preferences for pitch and orientation (vertical or right angle). Here are a couple of male headers that are simple and polarised: [https://lcsc\.com/product\-detail/Wire\-To\-Board\-Wire\-To\-Wire\-Connector\_MOLEX\_22272021\_MOLEX\-22272021\_C293316\.html](https://lcsc.com/product-detail/Wire-To-Board-Wire-To-Wire-Connector_MOLEX_22272021_MOLEX-22272021_C293316.html) [https://lcsc\.com/product\-detail/Wire\-To\-Board\-Wire\-To\-Wire\-Connector\_MOLEX\-22\-23\-2031\_C234181\.html](https://lcsc.com/product-detail/Wire-To-Board-Wire-To-Wire-Connector_MOLEX-22-23-2031_C234181.html) ![image.png](//image.easyeda.com/pullimage/Zmx6EHddPiGHaR1BU3gstwIk7BgVX3OwXRTaBukh.png) ![image.png](//image.easyeda.com/pullimage/gLfaiesftCWFyfx2l96ofMoWa36MFP2TkDRrjPKY.png) The problem I have with connectors on many sites is that I can find the part that goes on the PCB but not the part that then goes on the wires. The female parts are often sold as the connector receptacle body with the pins sold separately. The pins may be solder, crimp or IDC but I could not find where they are on LCSC.com or Farnell. For crimp or IDC you may need a tool which may be expensive unless you are doing lots of connectors. There are some nice IDC femal wire to receptacle connectors that mate with the PCB headers above and which you can manually insert the wires just using a small bench vice or even pliers with some care but I cannot find the parts on LCSC.com or Farnell.
Reply
andyfierman 4 years ago
Found roughly where the terminals for the female receptacles are: [https://lcsc.com/products/Terminals_11070.html](https://lcsc.com/products/Terminals_11070.html) but no idea which ones go with which receptacle (and I haven't found the receptacle yet...)
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Markus_ee 4 years ago
Hi! It is true that it is quite a detective work to find the matching connector with the terminal pins that are crimped to the wires. Also finding the tool that crimps the terminal pins to the wire can be quite a googling job. But I do like the moment that you have ordered the right parts and everything mates together perfectly :-D Aah the Heureka moment :-) I kinda like JST connectors, with 2.0mm and 2.54mm pitch, I have usually ordered them from banggood.com: [https://www\.banggood\.com/300pcs\-PH2\_0\-2p\-3p\-4\-pin\-2\_0mm\-Pitch\-Terminal\-Kit\-or\-Housing\-or\-Pin\-Header\-JST\-Connector\-Wire\-Connectors\-Adaptor\-PH\-Kits\-p\-1605099\.html?rmmds=search&cur\_warehouse=CN](https://www.banggood.com/300pcs-PH2_0-2p-3p-4-pin-2_0mm-Pitch-Terminal-Kit-or-Housing-or-Pin-Header-JST-Connector-Wire-Connectors-Adaptor-PH-Kits-p-1605099.html?rmmds=search&cur_warehouse=CN) [https://www\.banggood\.com/230pcs\-XH2\_54\-2p\-3p\-4p\-5\-pin\-2\_54mm\-Pitch\-Terminal\-Kit\-or\-Housing\-or\-Pin\-Header\-JST\-Connector\-Wire\-Connectors\-Adaptor\-XH\-Kits\-p\-1605096\.html?rmmds=detail\-top\-buytogether\-auto&cur\_warehouse=CN](https://www.banggood.com/230pcs-XH2_54-2p-3p-4p-5-pin-2_54mm-Pitch-Terminal-Kit-or-Housing-or-Pin-Header-JST-Connector-Wire-Connectors-Adaptor-XH-Kits-p-1605096.html?rmmds=detail-top-buytogether-auto&cur_warehouse=CN) [https://www.banggood.com/Easyelec-IWISS-Mini-Microo-Open-Barrel-Crimping-Tools-Crimper-Plier-Terminal-For-28-20AWG-JAMM,Molex,Tyco,JST-Terminals-And-Connectors-p-1655175.html?rmmds=search&cur_warehouse=CN](https://www.banggood.com/Easyelec-IWISS-Mini-Microo-Open-Barrel-Crimping-Tools-Crimper-Plier-Terminal-For-28-20AWG-JAMM,Molex,Tyco,JST-Terminals-And-Connectors-p-1655175.html?rmmds=search&cur_warehouse=CN) Regards, Markus Virtanen HW / Electronics Designer
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Markus_ee 4 years ago
I'm quite sure that you find these connectors and terminal crimps from LSCS, you just need to spend some time for looking. However, you I'm quite sure that you need to get the manual crimping tool from elsewhere, like banggood, aliexpress, ebay, amazon and so on.... Regards, Markus Virtanen HW / Electronics Designer
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rpt007 4 years ago
For the manual crimping tool have a look at Andreas Spiess informative YouTube channel (episode #282): [https://www.youtube.com/watch?v=25qObkSUHng&ab_channel=AndreasSpiess](https://www.youtube.com/watch?v=25qObkSUHng&ab_channel=AndreasSpiess) I am long time user of the Japanese engineer crimping tool as I had no idea about the existence of the much cheaper IWISS tool. Crimping these connectors still are a challenge every time. My first tool was a one-step crimper - but most of the time it failed and I had a time consuming task to correct the imperfect crimping results. Then I watched video #39 of Andreas' channel and bought the expensive Japanese crimper - but, I must admit, although it takes two steps to crimp, it works (after some little training to get the right positions ...). Nowadays I would go for the IWISS. Hope, that helps. BTW: Andreas' channel is an eldorado for electronic enthusiasts - very informative with structured content. Regards Raimund
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