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Discussion in 'Electronic Components' started by Tolstoy, Aug 7, 2007.

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  1. Tolstoy

    Tolstoy Guest

    I found what I thought was the perfect part for a current mirror.
    Datasheet here:
    But then I saw the spec on page three for matching of the collector
    currents, the datasheet says it can vary from .7 to 1.3. Is this for
    real? I dug out a tape of pn2222a transistors and checked a bunch of
    the transistors on the tape at random, and the max error was way short
    of ten percent. You'd think a dedicated current mirror would work at
    least as good, by design. Maybe they're just being super-conservative
    on the datasheet, but it puts me off buying the part. I have to go by
    the numbers they publish.
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