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Thread: What are these Components on the PCB

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    Default What are these Components on the PCB

    Do you recognise these components SHK1 and SHK2 on the PCB. The board is part of Tyredog TPMS (Tyre Pressure Monitoring System) it is used in the relay unit. I have never seen anything like it in my 45 years of electronic engineering. I measured the voltage across them it was 2.2 Volts DC. If you have any idea it will be greatly appreciated.


    Last edited by pid00; 01-07-20 at 09:57 PM.



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    It's not rocket science.

    Here are some simple suggestions for you.

    Try contacting the Tyredog company, who manufacture these units.

    TYREDOGUSA TPMS
    PO Box 92737,
    City of Industry, CA 91715-2737

    Telephone
    (818) 473-5399

    E-mail .

    Represented in Australia by:

    Zylux Distribution Pty. Ltd. (TYREDOG)

    166 Christmas St, Fairfield, 3078, VIC, Australia

    Phone: (03) 9482 2203

    You;ll find some manuals at .
    Last edited by tristen; 01-07-20 at 10:57 PM.

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    I would be guessing they are some sort of shock or vibration sensor to indicate impending tire belt failure. Is this in the receiver box? Does the box show an arrow or other mark as to its installed orientation in the vehicle?

    Edit. From user comments, that might be used to sense the vehicle moving and wake up the receiver.

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    Last edited by RFI-EMI-GUY; 03-07-20 at 01:53 AM.
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    I would be guessing they are some sort of shock or vibration sensor
    Yep...

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    Quote Originally Posted by RFI-EMI-GUY View Post
    I would be guessing they are some sort of shock or vibration sensor to indicate impending tire belt failure. Is this in the receiver box? Does the box show an arrow or other mark as to its installed orientation in the vehicle?

    Edit. From user comments, that might be used to sense the vehicle moving and wake up the receiver.

    Sent from my SM-T350 using Tapatalk
    Agreed. Shock/vibration sensors.

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