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NPN Transistor Marking

Discussion in 'Electronic Design' started by [email protected], Aug 3, 2007.

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  1. Guest

    I'm trying to figure out what the third marking means on a BCW60D NPN
    transistor. The package is marked ADW. What the heck does the W mean.

  2. Phil Allison

    Phil Allison Guest


    ** The part is identified by the " AD "

    W is a code for the particular country of manufacture.

    See the Philips data sheet.

    ......... Phil
  3. Guest

    With Philips the only extra marking is p or t for manufacture location.
  4. Phil Allison

    Phil Allison Guest

    ** Nothing to say some other letter cannot be used.

    Maybe " W " stands for Wang King in China ??

    ......... Phil
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