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Thread: Automotive Connectors & Polarity

  1. #1
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    Default Automotive Connectors & Polarity

    With these automotive connectors is there some convention which one is negative and which one positive?

    https://www.amazon.com/gp/product/B0...0?ie=UTF8&th=1
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  2. #2
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    Default Re: Automotive Connectors & Polarity

    Polarity is what you decide since there are pins to solder to. Just be consistent of course. And fuse your positive rail.

  3. #3
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    Default Re: Automotive Connectors & Polarity

    I suspected there is no norm except my norm. I just wanted to make sure before I start creating a bunch of those. Thanks!

  4. #4
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    Default Re: Automotive Connectors & Polarity

    I am using A=+ and B=-

  5. #5
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    Default Re: Automotive Connectors & Polarity

    My method is 1 is always +, and - is always the last pin. (I use 2,3, and 4 pin in my display)
    2012 - 1st year 64 Channels - 7500 LED lights - 5 sequences
    2013 - 128 Channels - 10,000 LED lights - 7 sequences (2 New)
    2014 - 201 Channels - upgrading 8 Arches to dumb RGB - 8+ sequences (1+ New)
    2015 - 240 Channels + 8 Universes - sequences TBD
    2016 - No Display
    2017 - Back in the Game - 240 Renard Channels + 12 Universes
    2018 - 256 Renard and 9 Falcon Outputs of Pixels - 16 sequences shown over 2 nights
    2019 - 256 Renard and 9 Falcon Outputs of Pixels - 16 sequences shown over 2 nights
    2020 - Emergency Conversion to Falcon F48 with limited wireless
    2021 - 10 RHL Simple Pi Pixel Controllers - 1 Master with 9 Remotes

  6. #6
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    Default Re: Automotive Connectors & Polarity

    Quote Originally Posted by TomL8345 View Post
    My method is 1 is always +, and - is always the last pin. (I use 2,3, and 4 pin in my display)
    Hmm, I was going to do this the opposite way, i.e. pin 1 being -/ground/reference and then other pins measuring against pin 1. Is there any particular reason you have + on pin 1 or is this just preference?

  7. #7
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    Default Re: Automotive Connectors & Polarity

    You set your own standard. Do it how ever it's easier for you to do or remember.
    I have 2pin and 3pin. On 2pin I always put V+ or D+ on pin 1 and V- on pin2. On 3pin V+ on pin 1, D+ in the middle pin2, and V- on pin 3. That is my standard and I have it wrote down and stick to it. Some of my connectors don't have numbers so I have a male and female made up with my standard with red, green and black wire to represent V+, D+ and V- so I can refer to it to make sure I put them together properly even without numbers on them.
    A bit to get use to but I really like using them on all my pixels.

  8. #8
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    Default Re: Automotive Connectors & Polarity

    Quote Originally Posted by munu View Post
    Hmm, I was going to do this the opposite way, i.e. pin 1 being -/ground/reference and then other pins measuring against pin 1. Is there any particular reason you have + on pin 1 or is this just preference?
    No reason other than it is easy for me to remember. You just need to be consistent.
    2012 - 1st year 64 Channels - 7500 LED lights - 5 sequences
    2013 - 128 Channels - 10,000 LED lights - 7 sequences (2 New)
    2014 - 201 Channels - upgrading 8 Arches to dumb RGB - 8+ sequences (1+ New)
    2015 - 240 Channels + 8 Universes - sequences TBD
    2016 - No Display
    2017 - Back in the Game - 240 Renard Channels + 12 Universes
    2018 - 256 Renard and 9 Falcon Outputs of Pixels - 16 sequences shown over 2 nights
    2019 - 256 Renard and 9 Falcon Outputs of Pixels - 16 sequences shown over 2 nights
    2020 - Emergency Conversion to Falcon F48 with limited wireless
    2021 - 10 RHL Simple Pi Pixel Controllers - 1 Master with 9 Remotes

  9. #9
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    Default Re: Automotive Connectors & Polarity

    I use 2, 3 and 4 pin versions of those on my setup. I'm not aware of any specific conventions.

  10. #10
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    Default Re: Automotive Connectors & Polarity

    I'm using A as positive and landscape wire using the side with labeling as positive. Just the way I figured felt right.

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