Where can I get this stackable header *cheaply*? - Page 1
Forum section: electronics / general

author: HwAoRrDk
author_rank: Super Contributor
timestamp: March 02, 2024, 01:22:43 pm
content: I'm trying to find a source for the attached type of stackable female header where I can buy them for areasonableprice in multiples of 5s or 10s. Ideally less than £1 each.They are 0.1" (2.54mm) pitch double-row 2x20 pin with overall height (i.e. body plus exposed pin length) of approx. 23mm, approx. 8.5mm height plastic body plus shrouded part on the pins of ~5mm (i.e. two layers of 2.5mm).The only sources I've found so far are egregiously priced. There are parts from Samtec and Sullins on DigiKey, Mouser, Farnell, RS, etc. but at prices of £5-9each!There are also parts of unknown manufacturer from various 'maker' vendors at prices of £2.50+ each. I've found nothing on LCSC or AliExpress (only similar parts with no or smaller shrouding). There are a bunch of manufacturers in the far east on sites like globalsources.com that claim to make them, but I don't want to buy 1000 of them.Anyone got anything helpful?

author: nali
author_rank: Frequent Contributor
timestamp: March 02, 2024, 01:38:28 pm
content: You're probably best searching for Raspberry Pi headers.E.g. this one from Adafruit £2.62 for 1xhttps://uk.farnell.com/adafruit/2223/40-pin-pi-gpio-stacking-header/dp/2816268?ost=2816268OK that doesn't meet your price but I'm sure there are loads others.

author: HwAoRrDk
author_rank: Super Contributor
timestamp: March 02, 2024, 04:15:07 pm
content: Quote from: nali on March 02, 2024, 01:38:28 pmYeah, I already did and that's what I found for £2.50-ish from various Raspberry Pi and 'maker' vendors.I even discovered that the magic words "PC/104" apply to these types of stacking headers and there are also industrial computing vendors who also sell things like them for enormous prices.Quote from: nali on March 02, 2024, 01:38:28 pmNot a great example, as that's not the shrouded version I'm looking for.And I already know where to buy those on AliExpress for around £0.30.

author: langwadt
author_rank: Super Contributor
timestamp: March 02, 2024, 04:42:25 pm
content: if you only need 5 or 10 is it really that important if they cost $2 ?

author: HwAoRrDk
author_rank: Super Contributor
timestamp: March 02, 2024, 05:58:41 pm
content: Sorry, I should have writtenmultiplesof 5 or 10. I need more than that, but I don't need several 100 or a thousand.

author: oPossum
author_rank: Super Contributor
timestamp: March 02, 2024, 08:03:04 pm
content: https://www.aliexpress.us/item/2251832710322745.htmlhttps://www.aliexpress.us/item/2251832777349207.htmlhttps://www.aliexpress.us/item/3256802129587874.html

author: HwAoRrDk
author_rank: Super Contributor
timestamp: March 02, 2024, 08:27:08 pm
content: Quote from: oPossum on March 02, 2024, 08:03:04 pmNope, nope, and nope. Those are all with asinglelayer of pin shroud. I'm looking for double layer of pin shroud. I need approx. 13.5mm between the top and the base of the pins, which is what 8.5+(2*2.54) will give. Thanks anyway.

author: Infraviolet
author_rank: Super Contributor
timestamp: March 02, 2024, 09:49:48 pm
content: Looking at shorter lengths might help. If you need 20 in length, but can get a length=2*5 one for <1/4 of the price of a length=2*20 that's worthwhile. For this style of header though you wouldn't want to go for lengths >20 as cutting down to length will tend to damage these, where it would be fine for male headers.You can also see if 1*5 is <1/8 the price of 2*20, single row might well be a lot cheaper than double.Samtec is one of the big manufactuers of headers, and a datasheet for any header from them contains the "recipe" to let you construct the part number to use when searching on Farnell/Mouser/... for a header with the dimensons you want.

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: March 02, 2024, 10:07:35 pm
content: May well be something at LCSC but could be tricky to find it with their sub-optimal search.

author: Buriedcode
author_rank: Super Contributor
timestamp: March 03, 2024, 12:06:05 am
content: Toby haven't let me down yet:https://www.toby.co.uk/board-to-board-pcb-connectors/254mm-sockets/309ae-254mm-elevated-single-and-dual-row-socket-strip/Not only do they ahve variable pin length, but also vary the number of elevating strips.Not the <£1 you're after bit for a stacking header with proper square pins I very much doubt you'll find 2x20 that cheap.

author: HwAoRrDk
author_rank: Super Contributor
timestamp: March 03, 2024, 01:15:17 pm
content: Quote from: Buriedcode on March 03, 2024, 12:06:05 amOh, interesting, thanks. They don't list the variant I want (309AE-40-SG-2Z-1555) though.Maybe I should enquire, as their prices are more realistic.Quote from: mikeselectricstuff on March 02, 2024, 10:07:35 pmOh, believe me, I scoured LCSC from top-to-bottom. They only have two products like it, albeit not the same, with only single layer shrouding:C35165andC5307344.

author: NiHaoMike
author_rank: Super Contributor
timestamp: March 03, 2024, 01:24:18 pm
content: Quote from: HwAoRrDk on March 02, 2024, 08:27:08 pmIf the pin length is enough, 3D print some spacers?

author: jonpaul
author_rank: Super Contributor
timestamp: March 03, 2024, 04:25:27 pm
content: Samtechhttps://www.samtec.com/

author: voltsandjolts
author_rank: Unknown
timestamp: March 03, 2024, 05:10:57 pm
content: Quote from: HwAoRrDk on March 02, 2024, 08:27:08 pmPlease excuse me for being a little slow on the uptake, but don't these almost fit the requirements?I mean, by sliding on a few extra 'shroud' pieces to the pins at each end, and perhaps in the middle, these would be adequate?'Shroud' pieces can be slid off of standard pins headers with a bit of persuasion.

author: HwAoRrDk
author_rank: Super Contributor
timestamp: March 03, 2024, 07:00:36 pm
content: Quote from: voltsandjolts on March 03, 2024, 05:10:57 pmAn ingenious idea, but one problem: these stackable headers nearly all have 0.64x0.60mm pins (i.e. rectangular) and regular male pin headers are typically 0.64x0.64mm square, so the shrouds would just be all loose.And anyway, I don't wanna have to do that dozens and dozens of times, nor waste a bunch of male pin header strips.Quote from: jonpaul on March 03, 2024, 04:25:27 pmDoes no-one actuallyreadthe posts in threads any more?

author: EPAIII
author_rank: Super Contributor
timestamp: March 05, 2024, 01:01:12 pm
content: They never did.Quote from: HwAoRrDk on March 03, 2024, 07:00:36 pm

author: NiHaoMike
author_rank: Super Contributor
timestamp: March 05, 2024, 01:17:13 pm
content: Quote from: HwAoRrDk on March 03, 2024, 07:00:36 pmHave you tried 3D printing some of the correct dimensions? Might take a few tries to get a snug fit, but the cost of material for such a small piece would be nearly nothing.

author: HwAoRrDk
author_rank: Super Contributor
timestamp: March 05, 2024, 01:46:03 pm
content: I don't have, nor have access to, a 3D printer.

author: thm_w
author_rank: Super Contributor
timestamp: March 05, 2024, 10:07:16 pm
content: Here you go:https://www.tinyosshop.com/raspberry-pi-extra-tall-headerQuote from: HwAoRrDk on March 03, 2024, 07:00:36 pmDoes it matter if the shroud pieces are a tiny bit loose? You push down the header, solder, it should hold it in place. And male header strips are incredibly cheap.Your quantity is too low that the savings is not really worth it, $2*30pc is ~$60 in savings. Is it worth your time?If you are really that cheap, you won't complain about having to do a bunch of extra steps