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SMD Code

Discussion in 'Electronic Components' started by Joe McElvenney, Apr 2, 2004.

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  1. Hi,

    Can anyone tell me what the SMD device code M51
    represents? It isn't in my reasonably new 'Semicon Index'
    although it is fitted in an 8 - 10 year-old car radio.

    TIA - Joe
  2. for a hint I have also from a radio emitter / receiver the
    chips in so8 package with marking M61. for the receiver
    and FL-A (datecode 9853) for the transmitter.
    there is chance that the device with marking M51 may be from
    the same manufacturer , probably in Asia because my module
    is fro a cheap gadget
  3. Also try posting to My recent question
    (cross-posted to both groups) about SMD markings was answered there, not
  4. Hi,

    Thanks Matthieu and Walter. Under better lighting it
    turned out to be marked M5, not M51 - a Philips BSR57 JFET.

    Cheers - Joe
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