Where can I buy this type of "flat" pins for my SMD to DIP pcbs? - Page 1
Forum section: electronics / general

author: bytestorm
author_rank: Regular Contributor
timestamp: July 13, 2018, 07:05:46 pm
content: Hey all!I am trying to find somewhere to buy this type of pin. The regular pinheaders are not flat, but square, so when used in a IC socket they damages the socket.However I do find alot of small pcbs with this kind of flat/slim pins that make the adapter pcb fit just like a chip in the socket..Anyone knows what they are called and where I could buy a larger quantity?(the measures in the pic could differ a bit ofc)Thanks!

author: Doctorandus_P
author_rank: Super Contributor
timestamp: July 13, 2018, 08:47:08 pm
content: I typed "single row Header" in Ali and got:https://www.aliexpress.com/wholesale?SearchText=single+row+headerYou get a lot of results with the thick square pins, but also quite a lod with round pins, which are quite a bit thinner.I measured 0.63mm on the square pins I have and 0.48mm on the round pins and these fit nicely in the "high quality" IC sockets with round holes, but are still to thick for the stamped IC sockets.

author: Howardlong
author_rank: Super Contributor
timestamp: July 13, 2018, 08:57:25 pm
content: I use "machined" or "turned pin" pin headers extensively for this sort of thing.

author: bytestorm
author_rank: Regular Contributor
timestamp: July 13, 2018, 09:53:22 pm
content: Thanks to both of you for the tips. Sadly, the majority of the places I want to use them for have regular stamped sockets.. hmm

author: oPossum
author_rank: Super Contributor
timestamp: July 13, 2018, 10:03:58 pm
content: 0.018" round pins will work with ordinary DIP sockets without damage. They also fit perfectly in machined pin sockets. I use round pin header strips that are 0.018" on one side and 0.025" on the other for making PCBs that plug into DIP sockets.

author: bytestorm
author_rank: Regular Contributor
timestamp: July 13, 2018, 10:09:53 pm
content: Where can I buy that type and what's it called? So I can be sure I get the correct ones

author: TheRadioGeek
author_rank: Contributor
timestamp: July 13, 2018, 10:17:57 pm
content: it looks like it could be one made by zierick??http://www.zierick.com/pages/sm_edge_sd1699.phpHope that helps. Good luck.TheRadioGeek

author: oPossum
author_rank: Super Contributor
timestamp: July 13, 2018, 10:19:36 pm
content: I think that Mill-Max makes them if you want top quality. All that I have used are from eBay. Search for "round header -socket -female" and look at the pictures. It is easy to spot the type that you want.A few examples...https://www.ebay.com/itm/301747757572https://www.ebay.com/itm/171830872054---Edit---Mill-Max 350 serieshttps://www.mill-max.com/products/socket/350-XX-XXX-00-0010000.018 round pins also work great in breadboards

author: oPossum
author_rank: Super Contributor
timestamp: July 13, 2018, 10:20:28 pm
content: If you really want the stamped metal pins...https://batten-allen.com/uploads/pdf/DIL-Catalogue2012.pdfThey are more difficult to work with than headers.

author: oPossum
author_rank: Super Contributor
timestamp: July 13, 2018, 10:47:48 pm
content: Some pics of a project I did that uses the 0.018/0.025 round headers. Eight old 2716 EPROMs that I have no practical way to program are replaced by a single 27C128/256/512 EPROM. The small PCB plugs in to an ordinary stamped contact socket for the 74LS138, and the larger PCB plugs in to one of the machined pin sockets for the 2716. The pins work great for both types of DIP socket.

author: tsman
author_rank: Frequent Contributor
timestamp: July 13, 2018, 11:22:11 pm
content: Flip-Pinssound like what you want.

author: Howardlong
author_rank: Super Contributor
timestamp: July 14, 2018, 09:05:28 am
content: Quote from: oPossum on July 13, 2018, 10:03:58 pmExactly this, the "machined" or "turned pin" pin headers work perfectly well for stamped sockets without deforming them. Usually one side is thicker than the other, aim to use the skinnier side to mate with your socket and solder the thicker side on your breakout. Either way, these header pins are a lot skinnier than your average square cross section header pins.

author: bytestorm
author_rank: Regular Contributor
timestamp: July 14, 2018, 06:58:11 pm
content: Perfect!! Now Ill just have to decipher the datasheet to get the correct ones but now I have all I need! Thanks ALL!!

author: bytestorm
author_rank: Regular Contributor
timestamp: July 14, 2018, 07:27:16 pm
content: By the way, have a look at these new ones!!https://www.mouser.se/ProductDetail/575-3169061150000030Dont see how many is included thou? Or are they really 0,5€ EACH??

author: Howardlong
author_rank: Super Contributor
timestamp: July 14, 2018, 10:08:33 pm
content: They are usually in single in line break off strips of 20, 32 or 40, like normal headers, but with turned/machined pins instead of square cross section.I usually buy them in bulk when I’m in SE Asia, but I’ve bought them from Farnell at a price when desperate, Harwin D01 series for example.Plenty of options on Amazon and eBay, eg:https://www.amazon.co.uk/2-54MM-40WAY-TURNED-HEADERS-PACK/dp/B01HZU84Z0/ref=sr_1_2?ie=UTF8&qid=1531605204&sr=8-2&keywords=Turned+pin+headerhttps://www.ebay.co.uk/itm/5-x-32-Way-2-54mm-Turned-Pin-Single-In-Line-SIL-Header/263739555004?epid=22020174471&hash=item3d681a3cbc:g:8m4AAOSwpHpbFv4K

author: oPossum
author_rank: Super Contributor
timestamp: July 15, 2018, 06:39:28 pm
content: The highest pin count headers are usually the least expensive per pin.https://www.digikey.com/products/en?Keywords=350-10-164-00-001000https://www.mouser.com/ProductDetail/Mill-Max/350-10-164-00-001000?qs=%2fha2pyFaduhDvZDPn%2f2z5T%252bo%252bnEPXC7aiBA9A2yMPyq5gsVHvUGDIyEXP4cyMMWGhttp://www.newark.com/mill-max/350-10-164-00-001000/board-to-board-connector-header/dp/17C5068

author: flasonsmts
author_rank: Contributor
timestamp: July 20, 2018, 10:18:05 am
content: this pins named leadframe, search on google you will find many suppliers, heres one:http://www.yrdzkj.com/but this website is in Chinese.http://www.ctmgdq.com/enindex.htmthis is english website, but their output is 50 million per month, I don't know if they will accept your order.