[sci.electronics] Part cross reference... Help.

heitke@tellabs.com (Steve Heitke) (01/31/91)

>> I have a component that I need a replacement for and I don't
>> know for sure what it is... it comes out of a Cobra answering
>> machine, it is a TO-92 transistor style package with the 
>> lettering 8050 D7ZC on it's face.  The "transistor" was located
>> near the power supply circuitry and it was encased in a thermal
>> compound with a heat sink, leading me to believe it is a 
>> voltage regulator of some kind.  I tried to cross it in various
>> data books to no avail so I turn to the net for help, thanks.

This was my original posting, after a few days with no response I
finally made it to my local Radio Shack and the guy behind the 
counter looks in his handy "cross reference manual" under 8050 and
tells me the part is a 2N2222 transistor!!  Can this be true??  I
am having a hard time believing him (not that I don't trust his
ability to read) so could someone please verify this for me?  Thanks.

-Steve
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 >>> Steve Heitke <> heitke@tellabs.COM <<<
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mcovingt@athena.cs.uga.edu (Michael A. Covington) (02/04/91)

According to the Philips ECG data book, an 8050C is an NPN AF power
amplifier transistor, silicon, 100 volts max, 0.5 watt max, TO-92 case,
and might well require a heat sink.  The specs I just gave you are
actually for the ECG289A, which is their recommended replacement,
rather than for the 8050C itself. They don't have a plain 8050 without
the C.