It was difficult getting dimensions from the various sellers of these ‘Arduino’ headers, of the few that responded I have purchased twice from the following eBay seller:
https://www.ebay.com/itm/200x-Arduino-8-Pin-Stackable-Female-Shield-Headers-Tall-Breadboard-Stacking-USA/150721147532 I recently placed a third order from them for some which should arrive tomorrow, I will let you know if the quality is different that the first two batches. I’m sure they could be had cheaper from Ali Express but it is many times hard to know exactly what you will be getting that way or if you will get the same thing again. At least this way the product seems to be consistent. I would be happy to send you some if you want to try them, I have some extra. Just drop me an email with your address and I’ll send some out. Jeff Birt From: M100 <[email protected]> On Behalf Of Stephen Adolph Sent: Friday, February 26, 2021 1:52 PM To: [email protected] Subject: Re: [M100] low profile pcb pins Jeff, wasn't sure what dimension you were referring to. do you have a part number? On Fri, Feb 26, 2021 at 1:37 PM Jeffrey Birt <[email protected] <mailto:[email protected]> > wrote: For the MOS8701/HB I produce I use the long tail stackable headers commonly used for Arduinos. You want the type that has a rectangular but not square profile with the thin side less than 0.5mm. These work well in normal leaf sockets and seem to work well in machine pin sockets as well. The trick is you need a fixture to solder them. For example, if you set your PCB down on a breadboard and push the headers through you can top solder and trim the excess away. The plastic part of the header is only serving as a carrier to hold the pins in place in this case. Jeff Birt From: M100 <[email protected] <mailto:[email protected]> > On Behalf Of B4 Me100 Sent: Friday, February 26, 2021 10:27 AM To: [email protected] <mailto:[email protected]> Subject: Re: [M100] low profile pcb pins I have used the following two strips with the M100 SysBus socket for quite a few projects - not sure it is the same format as the NEC socket. The strips are very low profile which means the modules easily clear the cover, even with tall components on the top side. But they are expensive which is OK for one or two modules but perhaps not for mass production. Samtec TS-120-T-A 20 pins = $2.83 https://www.digikey.com/en/products/detail/TS-120-T-A/SAM1112-20-ND/1105474?itemSeq=356013488 Mill-Max Manufacturing Corp. 335-40-120-00-160000 20pins = $6.83 https://www.digikey.com/en/products/detail/335-40-120-00-160000/ED5932-20-ND/4455921?itemSeq=356013724
