40 pin breakaway pin male headers - Page 1
Forum section: electronics / beginners

author: Legion
author_rank: Frequent Contributor
timestamp: April 07, 2014, 06:45:49 pm
content: I'm looking at these on digikey and from the pictures I can't see a difference between the ones labeled breakaway and the ones that aren't. Headers not labeled breakaway are $0.67 each. Headers marked breakaway are $2.15. So the price difference is significant. Sometimes I find digikey makes distinctions between products where there isn't any. So I'm not sure if this is one of those cases.If there is a difference, can you buy non-breakaway headers and snip them apart with side cutters? Or do they not snip "gracefully"?

author: Hideki
author_rank: Frequent Contributor
timestamp: April 07, 2014, 06:51:39 pm
content: How about these at $0.15http://www.taydaelectronics.com/connectors-sockets/pin-headers/40-pin-2-54-mm-single-row-pin-header-strip.html

author: Len
author_rank: Frequent Contributor
timestamp: April 07, 2014, 07:24:04 pm
content: Without knowing which actual parts you're talking about, it's impossible to see what the differences are. Are they from the same manufacturer? Are they made of the same materials? Is one priced in quantities of 10000?

author: sacherjj
author_rank: Frequent Contributor
timestamp: April 07, 2014, 07:46:55 pm
content: My guess is that the non-breakaway style is those without the little notches that center your cutters. I use the really cheap tayda headers. One difference I've found is the plastic isn't nearly as high temperature. So be quick with the soldering.

author: Legion
author_rank: Frequent Contributor
timestamp: April 07, 2014, 08:10:27 pm
content: Quote from: Len on April 07, 2014, 07:24:04 pmHere's the $0.67 one:http://www.digikey.ca/product-detail/en/PREC040SAAN-RC/S1012EC-40-ND/2774814Here's the $2.15 one:http://www.digikey.ca/product-detail/en/4-103741-0/A26509-40-ND/297917Spec-wise I need 0.100" pin pitch, through hole. It will be used with breakout boards, breadboards and perfboard.

author: senso
author_rank: Frequent Contributor
timestamp: April 07, 2014, 08:28:44 pm
content: For my use, I spent 20€ on ebay and got a few dozens of right angle, straight, male and female headers, single and dual row, for products I usually buy them form mouser.

author: ConKbot
author_rank: Super Contributor
timestamp: April 07, 2014, 08:49:14 pm
content: Quote from: Legion on April 07, 2014, 08:10:27 pmOne of those is amphenol, one of those isnt. Mystery solved

author: Legion
author_rank: Frequent Contributor
timestamp: April 07, 2014, 09:42:51 pm
content: Quote from: ConKbot on April 07, 2014, 08:49:14 pmWhat is amphenol?

author: Legion
author_rank: Frequent Contributor
timestamp: April 07, 2014, 09:44:35 pm
content: So getting back to the original question. Can I snip non-breakaway header pins or does the plastic crush/crack?

author: T3sl4co1l
author_rank: Super Contributor
timestamp: April 07, 2014, 09:48:55 pm
content: I've been known to buy extra-long female socket header strips and cut them to length. I cut one pin extra because that pin gets crushed; then I file down the broken ends smooth, and no one's the wiser.What, it's not like the whole damn strip is going to just crumble if you hold your pliers funny near it.Tim

author: Legion
author_rank: Frequent Contributor
timestamp: April 07, 2014, 09:59:54 pm
content: Quote from: T3sl4co1l on April 07, 2014, 09:48:55 pmYou make a good point. Last thing. I've seen both square and machined round pin headers. Any particular reason to get one over the other? Should I get both?

author: gxti
author_rank: Frequent Contributor
timestamp: April 07, 2014, 10:57:35 pm
content: I get the regular ones, and snap them with pliers. Every once in a while it doesn't break in the right spot, but I doubt the ones labeled "breakaway" would fare any better. Clearly they're all meant for it, there can't be many people using 36- and 40-pin straight header connections in one place.

author: ConKbot
author_rank: Super Contributor
timestamp: April 08, 2014, 10:52:09 am
content: Quote from: Legion on April 07, 2014, 09:42:51 pmAmphenol is a connector brand, they are big in .mil, aerospace and industrial work. Their stuff generally isnt cheap, and it doesnt surprise me to see that theirs header is more expensive than others. Not to say that they dont make good stuff, but will it make a difference on a pin header? probably not. And as for if you can snap apart headers that arent designated for it? Sure, as said, sometimes one pin at the joint gets broken, but at $0.67 / header its still cheaper than buying the expensive ones.

author: Rudane
author_rank: Regular Contributor
timestamp: April 08, 2014, 06:13:41 pm
content: Cut them with a box cutter, and you'll never know the difference. Using a box cutter, I've never had any problems with the connector not breaking in the right spot. As mentioned earlier, the cheaper ones may melt if you hold heat on them too long.

author: ElektroQuark
author_rank: Unknown
timestamp: April 09, 2014, 08:18:33 am
content: Quote from: Rudane on April 08, 2014, 06:13:41 pmWhat's that?

author: jeremy
author_rank: Super Contributor
timestamp: April 09, 2014, 09:17:33 am
content: Quote from: EdoNork on April 09, 2014, 08:18:33 amhttp://purplefish.edublogs.org/files/2011/11/craft-knife-trtnt8.jpg

author: ElektroQuark
author_rank: Unknown
timestamp: April 09, 2014, 10:10:23 am
content: We call it "a cutter" hereThe "box" part has confused me.Thank you for the picture.

author: Crazy Ape
author_rank: Regular Contributor
timestamp: April 09, 2014, 12:13:00 pm
content: Quote from: EdoNork on April 09, 2014, 10:10:23 amWhile occasionally used to hijack aircraft, they are most often used to cut open cardboard boxes, or the tape sealing the boxes.