Peter, Thanks for the good guidance. A long time ago I bought some Mill-Max pins, qty 500, for a song at digikey. that has been keeping me going for a long time. they were 1267 I believe. I recently bought some additional pins of different types from digikey, and while it works to place single pins one at a time, Is it a bit slow and cumbersome to tweezer pins into place like that.
Your assembly process is exactly like mine. I use a machine pin socket as the form. Thats what is really nice about the 28 pin headers I have been using. Very quick to assemble. I'll check out these parts- 3121 series or 9081. cheers Steve On Sun, Feb 28, 2021 at 11:55 PM Peter Noeth <[email protected]> wrote: > Steve, > > I usually use one of the Mill-Max pins on the attached catalog page, > usually a 3121 series or 9081 series on projects similar to yours, where a > "daughter PCB" is to be plugged into an existing ROM socket or other IC > socket. I usually make a "jig" out of a screw machine IC socket or SIP > header to hold the pins in alignment for soldering to the daughter board. > > Most screw machine sockets have a female connection with 4 fingers and a > circular hole, and expect a round mating pin no larger than .020" in > diameter. > > DigiKey sells Mill-Max products, as do other on-line part distributors. > Prices can be about 15 cents a pin in small quantities though. > > Regards, > > Peter > > > <snip> > >> >> Message: 18 >> Date: Fri, 26 Feb 2021 07:55:28 -0500 >> From: Stephen Adolph <[email protected]> >> To: [email protected] >> Subject: [M100] low profile pcb pins >> Message-ID: >> < >> camcmnv4k-jpmqgvmpe252jdg+b6ape-kwcppyoaweoa3hu1...@mail.gmail.com> >> Content-Type: text/plain; charset="utf-8" >> >> Hi folks. >> I'm struggling to find a good pcb pin for building REX# NEC/M10. >> >> I have tried working with those leadframes, but I find it difficult to >> work >> with them. I have to file them down so that the pins don't catch, and >> they >> don't work on machine sockets either. >> >> https://www.te.com/usa-en/product-1544210-2.html >> >> >> Can someone recommend a good low cost low profile solder machine pin? >> >> What I have today is absolutely perfect, but I can't find any more. It is >> a 28 pin DIP header based on machine pins that has a really thin plastic >> frame. So the module plugs in and sits almost directly flush to the host >> socket. >> >> thx >> Steve >> >>
