Can MOSFETs be tested with OhmMeter?

We can test normal PNP and NPN transistors with OhmMeter.
Can we test (how) MOSFETs in the same way?

 

[Phil Allison]

<Umma Friel>

We can test normal PNP and NPN transistors with OhmMeter.
Can we test (how) MOSFETs in the same way?

** You can certainly test for shorts and opens. The drain and source pins
have ( effectively ) an internal diode connected between them - so you get
the same result as with a diode. The gate should test open to the other
pins.

Testing mosfet operation is not so easy as most mosfets need 4 volts or
more to bias the Gate so the mosfet will conduct from Drain to Source.




............ Phil

 

[D MARSHALL]

and dont forget before you test them
with the meter short all pins first to get good
reading.

<Umma Friel> wrote in message
news:4170a07d$0$24701$afc38c87@news.optusnet.com.au...

We can test normal PNP and NPN transistors with OhmMeter.
Can we test (how) MOSFETs in the same way?

 

[Trevor Wilson]

<Umma Friel> wrote in message
news:4170a07d$0$24701$afc38c87@news.optusnet.com.au...

We can test normal PNP and NPN transistors with OhmMeter.
Can we test (how) MOSFETs in the same way?

**Clip your meter probes to the source and drain. Place a finger between
gate and drain, then source and drain. Reverse the meter leads and perform
the above procedure. This is a very basic go, no-go test. Personally, I use
my Atlas tested, from Farnell. Easy, fast and helpful.


--
Trevor Wilson
www.rageaudio.com.au