822 or 951?

Discussion in 'Electronics Resources' started by timelessbeing, Jul 3, 2012.

  1. timelessbeing

    Thread Starter New Member

    Jul 5, 2011
    18
    0
    Hi guys. I need help identifying this transistor please. Also, what do the colour stripes signify? :confused:
     
  2. paulktreg

    Distinguished Member

    Jun 2, 2008
    611
    120
    I've found in the past that sticking 2SA in front of either figure may reveal it's identity?
     
  3. timelessbeing

    Thread Starter New Member

    Jul 5, 2011
    18
    0
    '2S' is a J.I.S. (Japanese) designation, and 'A' is reserved only for high-freq PNP BJTs.

    The logo stamped on there is National Semiconductor, which I think was a U.S. manufacturer.
     
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