Replacement help needed for BDX54C pnp darlington transistor

Feb 25, 2006 1 Replies

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Pete 20 years ago

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?

Thanks, Peter

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Phil Allison 20 years ago

"Pete" <

** Another BDX54C ?

Available from WES or Farnell-in-One for a couple of dollars.

Also a TIP147 - same goes as above

........ Phil

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