Shop OBEX P1 Docs P2 Docs Learn Events
double-sided header pins? — Parallax Forums

double-sided header pins?

Jeff DegeJeff Dege Posts: 85
edited 2006-03-13 11:38 in General Discussion
OK - this is a simple one.

We've all of us seen breakaway pinstrip headers. (See attached).

All that I've seen had legs of unequal length - one just long enough to fit through a PC board. Which means that it's not long enough to stick into a breadboard. And if you stick the other end in the breadboard the other is too short to reliably connect to connect anything to.

But the Parallax "Understanding Signals" kit comes with a little three-pin strip of header pins with equal length legs - so that one end could go into the female connector of the servo wire and the other could go into a breadboard.

My problem? I can't find them.

The catalogs list hundreds or thousands of breakaway pinstrip headers. But they rarely have pictures or dimensions.

Can anyone help me?
Main-Headers.jpg
250 x 250 - 8K

Comments

  • NewzedNewzed Posts: 2,503
    edited 2006-03-09 22:46
    Digikey part number S1232E-36 is a 36=pin break-away header.· Both sides of the header have the same length pins.· I have used them for a long time to plug into breadboards.

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    Sid Weaver
    Do you have a Stamp Tester yet?
    http://hometown.aol.com/newzed/index.html

    ·
  • Jeff DegeJeff Dege Posts: 85
    edited 2006-03-09 23:13
    Thanks.
  • ForrestForrest Posts: 1,341
    edited 2006-03-10 00:23
    FYI the black plastic spacers slide on the pins. You CAN move the plastic spacer if you press hard. I typically press the pins into a perf board and press the pins with a block of wood. If you want to do a whole row of pins - squeeze it in vise.
  • mediaprefectmediaprefect Posts: 31
    edited 2006-03-10 00:54
    Jeff,

    If you only need one or two, they are cheaper at Wright Hobbies and I don't believe that you'll have to pay a $5 min. order penalty for a small order.

    http://www.wrighthobbies.net/catalog/product_info.php?products_id=48&osCsid=3f7c60ffdf2393d5ccf4dc21a808076d

    Rick B
  • Jeff DegeJeff Dege Posts: 85
    edited 2006-03-10 03:53
    Thanks, but I always seem to have enough on my going-to-need-someday list to avoid the min. order fees.
  • PARPAR Posts: 285
    edited 2006-03-10 20:49
    Newzed said...
    Digikey part number S1232E-36 is a 36=pin break-away header.· Both sides of the header have the same length pins.· I have used them for a long time to plug into breadboards.

    Digikey identifies their part # S1232E-36·as being Mfg.·Sullins' part # PEC36SFCN, found at

    http://www.sullinselectronics.com/cgi-bin/conn.cgi

    The codes used in the part # can be found at

    http://www.sullinselectronics.com/catalog/38A/Page76-77.pdf

    (which shows that the head/tail lengths for this particular part are: 0.318/0.320 inches (close enough to being the "same" length :>)

    PAR
  • Kenny GardnerKenny Gardner Posts: 169
    edited 2006-03-10 21:11
    For any sort of header imaginable:

    http://www.samtec.com/

    Kenny
    ·
  • bulkheadbulkhead Posts: 405
    edited 2006-03-12 00:50
    Does anyone know if any of the "male headers" from www.hobbyengineering.com/SectionHD.html will work? I just need one end to plug into the breadboard, the other end long enough to plug servos into.

    Just to clarify, male means it has pins on both sides and female means it has pins on only 1 side? Thanks.
  • Jeff DegeJeff Dege Posts: 85
    edited 2006-03-12 20:31
    I don't know anything abotu those pins, except that the webpage says "The board side pin is longer than those of standard PCB headers so they work well in solderless breadboards".

    Which suggests that they would.

    As for female - yes. The female pinstrips have a socket on one end and a pin on the other. You have to have a pin to fit to the PC board.
  • kelvin jameskelvin james Posts: 531
    edited 2006-03-13 05:10
    Since most electronic suppliers only have the short breakaway pins, maybe there is a way to get around that. Centering the pin on the plastic is an option, but still might come up short. Here is a thought---- we breadboard with " wire " and tin for ic contacts, so why do we need a gold plated pin for a connector? Push out those pins from the plastic spacer, cut some 20 guage solid wire to the length desired, and shove back in the spacer. Standard pins are .025 in. square, so 20 guage wire at .032 in. round should give a nice snug fit. Have not tried it, but sounds about right. Obviously, it will not be as rigid as the pin, and conductivity may be less, but i highly doubt it would be an issue.

    kelvin
  • ForrestForrest Posts: 1,341
    edited 2006-03-13 11:38
    I've soldered wired to the breakaway wires - it works. Two things to keep in mind:
    1. The plastic spacer is usually not high temperature plastic - so it will melt with heat from the soldering iron. It's best to move the plastic spacer to the other end of pin and use needlenose pliers to hold the pin near where you're soldering. The pliers will act as a heat sink.
    2. Since pin spacing is only 0.1 in - I recommend a small piece of heat shrink tubing over each soldered connection.
Sign In or Register to comment.