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Old 3rd March 2004, 08:32 AM   #1
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Default Dumb JFET Question

Have a Fluke meter with diode test function...handy for quick BJT tests...but is this diode test safe for testing JFETs? Was told long ago never to forward-bias the Gate-Source, but I'm assuming that the meter diode test would not hurt the JFET.

Is that the case? Or is there a danger of damaging the JFET be doing this...?
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Old 3rd March 2004, 08:56 AM   #2
mirlo is offline mirlo  United States
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Should be fine. Base-emitter junctions are more fragile than jfets.

Not sure how valuable the test is though beyond gross shorts/opens.
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Old 3rd March 2004, 09:08 AM   #3
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OK....again, kinda felt stupid for asking, but my experiance with FET's is pretty limited.

Testing for basic functionallity is all I really needed...
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