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Transistors/ cross referencing [message #14148]

Wed, 08 December 2004 18:56

Manualblock
Messages: 4973
Registered: May 2009

Illuminati (13th Degree)

Anyone know how to cross reference Fairchild Semiconductor TO 92 and TO 220 transistors. Also how to substitute Mosfets for either one of those? Thank You in advance. The tag numbers are BC 549/559. Mouser will not sell one. I have all the specs. What are the most relevant and which can be exceeded.

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Re: Transistors/ cross referencing [message #14149 is a reply to message #14148]

Wed, 08 December 2004 23:21

Wayne Parham
Messages: 18790
Registered: January 2001

Illuminati (33rd Degree)

Fairchild BC 549 and BC 559 are small signal transistors like the 2N3904 and 2N3906. Those are the ones you're talking about, right?

You might try AER, Carlton-Bates and Hamilton-Avnet. They'll probably have access to the Fairchild part and several suitable replacements and cross-references. Seems like parts guys at distributors have a knack for finding interesting devices, so you might give 'em a try.

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