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Crystal 16000.0

Discussion in 'General Electronics Discussion' started by jasonb-1010, Aug 22, 2018.

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  1. jasonb-1010

    jasonb-1010

    7
    0
    Aug 3, 2018
    Hi guys,

    Hopefully an easy one.

    I have a crystal pictured, I want to change the crystal.

    Looking ideally for a Part number RS components or Farnell or any help just identifying this part.

    Thanks Jason
    [​IMG]
     
  2. davenn

    davenn Moderator

    13,798
    1,939
    Sep 5, 2009

    Hi ya Jason


    It's either 16MHz or 16kHz
    I'm tending towards 16 kHz


    Make a basic crystal oscillator and stick in the crystal and see which of those 2 freq's it resonates on

    Do you have a 50MHz or better scope or a frequency counter ?

    why do you want to change it ?


    Dave
     
  3. kellys_eye

    kellys_eye

    4,275
    1,147
    Jun 25, 2010
    It's physical size is known as UM-5 but that sized won't be easy to obtain. I'd say it's a 16MHz device (too small for 16kHz) and the HC-49U will probably fit although you really need to know if it is a fundamental, overtone, series, parallel etc.

    Do you have details of the circuit it came from or a picture of the board?
     
    73's de Edd likes this.
  4. jasonb-1010

    jasonb-1010

    7
    0
    Aug 3, 2018
    Thanks guys,

    I don't have any test equipment.


    I'm only changing to see if it fixes a problem with a automotive pcb board I have that has failed. I have changed several other parts and though this could be the issue. For a couple of pounds worth replacing it and see what happens.


    I read that time and temperature effects these, and this automotive part lives inside the engine bay and get hot.

    Picture can bee seen here
    https://picclick.co.uk/REPAIR-SERVICE-BMW-throttle-actuator-M3-M5-M6-131794782967.html

    Thanks again.
     
  5. Chemelec

    Chemelec

    291
    47
    Jul 12, 2016
    Physical Size doesn't mean much.
    I have some VERY Tiny Crystals in the KHz Range.
    I would say it is 16Khz
     
    davenn likes this.
  6. kellys_eye

    kellys_eye

    4,275
    1,147
    Jun 25, 2010
    There's no 'usual' requirement for 16kHz in modern electronics but 16MHz is a common processor clock frequency.

    Unless the OP has some specific reason for declaring the crystal faulty I think it is unlikely to be the cause of any fault as they are, generally, very reliable.

    What other tests have been made prior to the decision process as specified? The device in the photo looks to be a MOSFET that has blown up. This can happen because of an external event and replacement is often all that is required to restore operation.
     
    73's de Edd likes this.
  7. Bluejets

    Bluejets

    4,644
    980
    Oct 5, 2014
    Crap link took me to BMWparts on Ebay .......(:):
     
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