Those are basically a fancy shaped Arduino header pins. I just bought 200 8-pin, long stackable Arduino headers for $21.95 delivered which comes out to $0.014/pin. The pins I get are just a shade larger than IC pins in both directions and work in both normal leaf sockets and turned pin sockets.
https://www.ebay.com/itm/200x-Arduino-8-Pin-Stackable-Female-Shield-Headers-Tall-Breadboard-Stacking-USA/150721147532 Jeff Birt From: M100 <m100-boun...@lists.bitchin100.com> On Behalf Of MikeS Sent: Saturday, February 27, 2021 3:47 PM To: m...@bitchin100.com Subject: Re: [M100] low profile pcb pins Our friend Al K suggested some "Flip Pins' in response to Steve's query on VCF; they look interesting, $.09/pin: <https://www.evilmadscientist.com/2016/fliptronics-flip-pins/> https://www.evilmadscientist.com/2016/fliptronics-flip-pins/ m ----- Original Message ----- From: "RETRO Innovations" < <mailto:go4re...@go4retro.com> go4re...@go4retro.com> To: < <mailto:m...@bitchin100.com> m...@bitchin100.com> Sent: Saturday, February 27, 2021 3:19 PM Subject: Re: [M100] low profile pcb pins > On 2/27/2021 12:20 PM, Mike Stein wrote: >> Yeah, many people use those for this application and I even have some, >> both DIP and SIP, but the thickness of the pins on the ones I've been >> able to find is more than an IC leg and they don't fit well into >> machined pin sockets; are yours thin enough? > > I feel they are. And, they fit into machine pin sockets. > > I've used them in commercial products for 15 years, and no complaints, > even after folks reverted back to non machine pin ICs. > > I don't think one has to be exactly as thin as an IC pin (they make IC > pins just thick enough to handle the force of pushing into a socket, no > more :-), but rather no larger than the expected width a leaf socket > expects. > >> >> And I don't use the component carriers as is; I extract the pins while >> watching a baseball game or some other mindless distraction and then >> insert them from the top through the pcb, trimming off the forks after >> soldering. Admittedly, I wouldn't want to do 100 pcbs in one sitting >> that way... > > Yeah, I can see that as viable for very small batches, but I get ROM > adapters and such assembled in batches of 100 or 200 at a time. The > cost to handle it that way would be prohibitive to the hobbyist nature. > > I do agree the regular square pins available at most electronics > connector houses are too wide, they spread the leaf socket out too > much. As has been noted, the cheaper Arduino male-female headers you > can buy on eBay work great as well. They are about .1mm thicker than > the IC pin thickness. > > Jim
