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SMD identification: please help!

Discussion in 'Electronic Components' started by Reinhard Zwirner, Dec 4, 2009.

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  1. Hello,

    I'm asking for help with identification of three sm devices.

    1. Q1, marked "I GE": probably N-channel JFET
    2. D2, marked "A 7": diode or BJT used as a diode

    3. Q2, marked "M 5": probably PNP BJT

    BTW, the photos show the PCB of Sony's AN-102 active antenna.
    Q1 works as RF amp, D2 (and not shown D1) are used for input

    Q2 is the electronic switch which connects the RF amp stage to
    the supply voltage.


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