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how to read relays?

Discussion in 'General Electronics Discussion' started by swagguy8, Apr 9, 2015.

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  1. swagguy8

    swagguy8

    73
    6
    Dec 10, 2014
    hey guys, so for my amp project, i need a relay. Problem is, i don't know the pinout, but problem is, parts express didn't put the pinout on their website, and the datasheet wasn't helpful at all.
    heres the relay:
    http://www.parts-express.com/kest-ks2e-m-dc12-12-vdc-2a-8-pin-miniature-pcb-relay--075-300
    datasheet:
    http://pdf.datasheetarchive.com/indexerfiles/Datasheet-029/DSA00508825.pdf

    the picture shows the bottom of the relay, which indicates the pinouts, but i can't figure out what its saying
    can somebody help me out on it?
     
  2. Gryd3

    Gryd3

    4,098
    875
    Jun 25, 2014
    That is a douple pole double throw relay, so it can be though of as two toggle switches built into one case.
    Pin 1-16 is for the coil to activate the relay.
    Pins 4,6,8 are for one switch
    Pins 13,11,9 are for the other switch

    I'm having trouble immediate telling which pin is common for each switch.
     
  3. davenn

    davenn Moderator

    13,581
    1,868
    Sep 5, 2009
    The datasheet link there gives all the info ....
    http://www.parts-express.com/pedocs/specs/075-300-kest-ks2e-m-dc12-specifications.pdf

    4 and 13 are the commons
    6 and 11 are the NC and 8 and 9 are the NO

    cheers
    Dave
     
    Gryd3 and ADRT like this.
  4. ADRT

    ADRT

    192
    32
    Nov 25, 2014
    Wow! The markings on this thing are clear as mud. I would say 6 & 11 are common. 4 & 13 are NO and 8 & 9 are NC. Best thing to do is test wih a multimeter. 1 & 16 are definitely the coil.
     
  5. davenn

    davenn Moderator

    13,581
    1,868
    Sep 5, 2009

    no ;)

    read my previous post and the datasheet :)
     
    ADRT likes this.
  6. ADRT

    ADRT

    192
    32
    Nov 25, 2014
    Nice Dave. That's the right pinout.
     
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