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Ask an Expert Forum How do I tell the difference between JST and Molex Picoblade?
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  • jst-sh
  • 1.25mm
  • harness
  • molex
  • 1mm
  • jst
  • picoblade
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How do I tell the difference between JST and Molex Picoblade?

digitalformula
digitalformula over 8 years ago

Hi,

 

I've got some video transmitters and FPV cameras for race quadcopters but I'm having trouble identifying the connectors on them.  I thought the connectors were JST-SH (1mm pitch) but it turns out they're 1.25mm pitch.  The manufacturer tells me they're JST 1.25mm, although I'm also having trouble tracking down where to buy the connectors (I want to make my own wiring harnesses to connect to the VTXs and cameras)

 

Molex Picoblade looks similar, though - how can I tell the difference?  I ordered a ton of 1mm connectors when I thought they were JST-SH and they don't fit, of course.  I don't want to make the same mistake again.  image

 

Thanks!

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Top Replies

  • shabaz
    shabaz over 8 years ago +1 suggested
    Hi Chris, You can measure the distance across multiple pins, and divide, to confirm if the pitch is 1mm or 1.25mm.
  • rachaelp
    rachaelp over 8 years ago +1 suggested
    Hi Chris, Maybe this page could give some useful info: https://www.rcgroups.com/forums/showthread.php?1493712-JST-connector-confusion-the-real-story Best Regards, Rachael
  • Luka1989
    Luka1989 over 2 years ago +1 suggested
    Hi Chris, it's been 6 years. But I hope these 3 easy ways to distinguish JST SH and molex PicoBlade will help others like you.
Parents
  • baggs69
    0 baggs69 over 4 years ago

    Hello,

       I know this is late but to answer part of your question JST whose factory i visited a few years ago told me 2 things, 1) they do not mnf a sh connector in 1.25mm only 1mm. 2) the connectors used on the cameras are leaded parts thus only the picoblade connector line in 1.25mm has leaded connectors thus better strength. One last statement from one engineer which i thought was kind of crazy was that most resellers & engineers say that if its a white connector like what jst makes, it has to be jst but in reality it is also possible that it is a molex connector. Here in the states jst is far cheaper then molex so i just always get my molex parts from china. I buy they throw then in small padded envelop and i get them in 7 days to 10 days. Plus no duty as they are of sample quantity. Anyway things may have changed since my last trip to china but 99% of mnfs use standard available parts. Not bult to their print ones. For ic''s they just grind off the pn.   Good luck... Baggs69

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  • baggs69
    0 baggs69 over 4 years ago

    Hello,

       I know this is late but to answer part of your question JST whose factory i visited a few years ago told me 2 things, 1) they do not mnf a sh connector in 1.25mm only 1mm. 2) the connectors used on the cameras are leaded parts thus only the picoblade connector line in 1.25mm has leaded connectors thus better strength. One last statement from one engineer which i thought was kind of crazy was that most resellers & engineers say that if its a white connector like what jst makes, it has to be jst but in reality it is also possible that it is a molex connector. Here in the states jst is far cheaper then molex so i just always get my molex parts from china. I buy they throw then in small padded envelop and i get them in 7 days to 10 days. Plus no duty as they are of sample quantity. Anyway things may have changed since my last trip to china but 99% of mnfs use standard available parts. Not bult to their print ones. For ic''s they just grind off the pn.   Good luck... Baggs69

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