testing dual N-channel P-Channel mosfet in a 8-SOIC package

[1supertech]

I would like to know how to test in circuit dual N-channel P-Channel mosfet in a 8-SOIC package

Thanks for your help

[budm]

Re: testing dual N-channel P-Channel mosfet in a 8-SOIC package

Get the spec sheet so you can locate the S (Source), D (Drain), and G (Gate) pins.
You use Ohm mode to check for leakage/short between the 3 pins combination, but most common failure mode in these MOSFETs are due to shorts/low reistance reading between S and D.

[1supertech]

Re: testing dual N-channel P-Channel mosfet in a 8-SOIC package

Get the spec sheet so you can locate the S (Source), D (Drain), and G (Gate) pins.
You use Ohm mode to check for leakage/short between the 3 pins combination, but most common failure mode in these MOSFETs are due to shorts/low reistance reading between S and D.

What would be normal reading for pin D1 & S1 19.60 ohm
D2 & S2 18.32ohm

[selldoor]

Re: testing dual N-channel P-Channel mosfet in a 8-SOIC package

Below 30 ohms is possibly bad (short) if on the board. You would need to remove it to test further

[1supertech]

Re: testing dual N-channel P-Channel mosfet in a 8-SOIC package

thanks selldoor

[budm]

Re: testing dual N-channel P-Channel mosfet in a 8-SOIC package

I agree with selldoor.

[1supertech]

Re: testing dual N-channel P-Channel mosfet in a 8-SOIC package

Thank you both for great information. By any chance would you guys know where I
can buy P2804HVG and STM4953 dual N-channel P-Channel mosfet in a 8-SOIC package
other then China or Hong Kong.

[selldoor]

Re: testing dual N-channel P-Channel mosfet in a 8-SOIC package

Perhaps look at the datasheets for each then look for a substitute
This might do for the 4953
http://www.digikey.com/product-detai...4-1-ND/3050790

[1supertech]

Re: testing dual N-channel P-Channel mosfet in a 8-SOIC package

Thank you again selldoor