smd diode with w2 written on it

Discussion in 'General Electronics Chat' started by MAGNET0, Nov 24, 2009.

  1. MAGNET0

    Thread Starter New Member

    Nov 24, 2009
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    0
    HI IM TRYING TO REPAIR the cirquit board on my cars gps dvd player i shorted a smd diode that has the markings w2 on it.does any one know what w2 stands for on a smd diode or does the code only pertain to the manufacturer...if anyone can tell me what w2 means on a smd diode or point me in the right direction i would appreciate it.
     
  2. bill l

    Member

    Oct 11, 2009
    30
    0
    Last edited: Nov 24, 2009
  3. MAGNET0

    Thread Starter New Member

    Nov 24, 2009
    2
    0
    thks for your help bill, i hope thats what it is so i can finally replace it. typing w2 diode or simular on search engines wasnt yealding much usefull info.
     
  4. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    If it's a diode marked "w2" it is probably a "house" marking.

    Manufacturers use "house marked" parts to help thwart reverse engineering efforts and to keep people from stealing their designs.

    I don't see why a 12GHz transistor would be used in a DVD player. Perhaps it's related to the GPS portion of the circuit?
     
  5. bill l

    Member

    Oct 11, 2009
    30
    0
    not all manufacturers employ this.

    a prime example:

    rockford fosgate.

    get a copy of their schematics and you will see that they are marked "company proprietary". open up a corresponding amplifier and you will see standard marked components.
     
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