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- Posted on
February 25, 2006, 6:04 am
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I have an exicom phone system with a faulty battery back switch, which
is a BDX54C pnp darlington transistor. It's in a TO-220 package, 100v,
8A, 750 hfe. It's being used to switch between mains-derived 24V DC and
battery power at mains failure, in a very simply circuit.
Can anyone suggest a possible replacement?
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