Hello,

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I've got a shorted transistor in the RF assy of an E4411A spectrum analyzer.? I'm looking for the mfg/mfg pn.? It is a surface mount device,? 4 gullwing leads, round black plastic body, white dot identifying the base and its marked "211".? The part is running in a 2.5GHz circuit, and is used in multiple places in there.? The analyzer is about 1997 vintage.

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Any hints as to how to cross a package marking to a real mfg/mfg PN?

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Thanks in advance.

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Don C

Beaverton, OR