JST Connector Poll - do you know your genders?

Discussion in 'Rocketry Electronics and Software' started by dshmel, Oct 9, 2019.

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What gender is this JST connector

  1. Male

  2. Female

  3. I don't know anything about JST connectors

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  1. Oct 9, 2019 #1

    dshmel

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    I want to see if the rocketry community has a consistent understanding of the two different gender designations for JST-RCY connectors which are commonly used forLiPo batteries.
     

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    Last edited: Oct 10, 2019
  2. Oct 9, 2019 #2

    Charles_McG

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    Female.
     
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  3. Oct 9, 2019 #3

    Buckeye

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    My JST connectors self-identify as non-binary gender.
     
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  4. Oct 9, 2019 #4

    blackjack2564

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    Male..... think of it as human body parts. The "outie"..male, plugs INTO the "inie'....female.lol:D

    Screen Shot 2019-10-09 at 3.22.14 PM.png
     
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  5. Oct 9, 2019 #5

    cerving

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    With "normal" polarity, a female connector is a receptacle with a socket, a male connector is a plug with a pin. Thus the difference between SMA and RP-SMA. Technically, JST connectors are reverse-polarity... sockets with pins and plugs with receptacles.
     
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  6. Oct 9, 2019 #6

    Steve Shannon

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    As usual you’re exactly right, Jim, but that’s where the confusion sets in for some people. The plastic male housing inserts into the plastic female housing, but inside of the male housing are female metal sockets and inside the female housing are male pins.
     
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  7. Oct 9, 2019 #7

    JDcluster

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    Be careful:
    One problem that I have noticed; some cheapo ones don't wire them correctly. You have black wires going to red wires when you connect the male to a female lead.
     
  8. Oct 9, 2019 #8

    heada

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    I purchased some from Amazon that were cheap. They were rejects and wired backwards just as you said. I just made sure to do all the rest of my wiring backwards to match.
     
  9. Oct 10, 2019 #9

    burkefj

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    Don't trust ebay.....The male/female refers to the electrical pins/sockets and the plastic part is the plug/socket JST uses the term plug/socket to avoid gender completely.

    So to be correct if referring to the plastic part refer to plug/socket if referring to the elctrical pins use male/female.

    Refer to this: https://www.digikey.com/catalog/en/partgroup/rcy-series/25502

    Note it refers to plug/socket and plug has female connectors, and a socket has male pins...
     
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  10. Oct 10, 2019 #10

    Voyager1

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    It's determined by the gender of the metal conductor, not the plastic body. So, female!
    The connector used for a power source should always be female.
    However, JST connectors are in a class of hermaphroditic connectors, as alluded to above: the conductor is one gender; the body is the other!
     
    Last edited: Oct 10, 2019
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  11. Oct 10, 2019 #11

    Wallace

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    Does anyone here know (or care for that matter) that JST was not originally the "term"/name of that style connector? 2 Likes for the first, correct answer..
     
    Last edited: Oct 10, 2019
  12. Oct 10, 2019 #12

    Wallace

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    And, I believe it now either illegal and or at the very least immoral to ask ANY questions regarding gender in general. So, carry on Gentlemen...
     
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  13. Oct 10, 2019 #13

    Wallace

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    And as far as I know the male has the "outtie" and the female has the "innie". At least from my experiences...
     
  14. Oct 10, 2019 #14

    rharshberger

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    Japan Solderless Terminal...

    As for the gender whichever part gets stuck inside the other is male and the other part is female. But honestly they are sold as the male being the part shown in post #1 iirc.
     
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  15. Oct 10, 2019 #15

    Wallace

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    I owe Ya one more Rich, Outstanding...
     
  16. Oct 10, 2019 #16

    rharshberger

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    I actually was researching the different sizes of JST the other day and came across what it really meant.
     
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  17. Oct 10, 2019 #17

    mpitfield

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    To expand on this, read the following https://hackaday.com/2017/12/27/jst-is-not-a-connector/
     
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  18. Oct 10, 2019 #18

    rharshberger

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  19. Oct 10, 2019 #19

    OverTheTop

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    I love it when they say things like "Its pitch of 2.5 mm is effectively identical to the 0.1″ pitch commonly found on prototyping breadboards." It just shows they have little idea about both the importance of measurement and lexicology of English.
     
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  20. Oct 10, 2019 #20

    Nytrunner

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    This has been a wonderfully amusing and informative thread.

    Kudos to whoever answered "I have no idea about JST connectors"

    Now you know! :cool:
     
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  21. Oct 10, 2019 #21

    Wallace

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    Absolutely true, yet plug gender tends to have little actual significance to your average hobbyist since they are almost always used/purchased in pairs/multiples (why buy 1 when a dozen costs 10 percent more) containing one of each. Just as long as you use the gender that's shielded on the power source. Voyager1 has the right idea.
     
    Last edited: Oct 10, 2019
  22. Oct 10, 2019 #22

    ThirstyBarbarian

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    I think it all depends on whether the wires inside the socket side represent a pistil or a stamen.

    And how does this fit into the whole discussion?
    DF370FF0-236F-4D09-8BC4-49B0114FD175.jpeg
     
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  23. Oct 10, 2019 #23

    Wallace

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    I actually have a "Degree" (well, at least a graduation certificate, in horticulture) that I earned during my "College" days/years (not that type of College Btw;)), so the pistil/stamen thing sorta really brought back some memories/cracked me up more than it should have. You Sir, have brightened my morning and for that I thank you.
     
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  24. Oct 10, 2019 #24

    H_Rocket

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    Obviously Steve, you have never tried to fix stupid by reverse pinning connectors. It won't work with JST, however there are a whole lot from AMP (or whatever they are now called) that do...

    Actually I wish there was a table of names for the zillion different connectors used in RC aircraft. I can pull four batteries out of my box and have four different connectors.
     
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  25. Oct 10, 2019 #25

    cerving

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    JST is actually the MANUFACTURER, not the name of the connectors... the name for the connector on most of our small LiPo batteries is actually JST-RCY. The balance plugs on most LiPo's are JST-XH's. JST makes a whole bunch of different connectors... wire-to-wire, board-to-wire, board-to-board, etc...
     
  26. Oct 10, 2019 #26

    dshmel

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    I corrected the OP.
     
    Last edited: Oct 10, 2019
  27. Oct 10, 2019 #27

    Steve Shannon

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    Actually my first job following my undergrad studies included a little bit of everything, including assembling molex and AMP connectors. And I’ve spent some time trying to fix stupid as well as being the subject of such efforts by others.
     
  28. Oct 11, 2019 #28

    Wallace

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    Gender
    Gender - The gender of a connector refers to whether it plugs in or is plugged into and is typically male or female, respectively (kids, ask your parents for a more thorough explanation). Unfortunately, there are cases where a connector may be referred to as "male" when it would appear to be female; in the examples section, we'll point a few of those out as we discuss individual component types and explain why that's the case
     
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  29. Oct 11, 2019 #29

    Wallace

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    The "kids, ask your parents" thing is pretty funny...
     
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