VFET testing method and result

[Soundhappy]

All of the vfets passed the the diode test, my multimeter just beeps to symbolize continuity.

I think I see what your getting at soundhappy. If I move the leads around when testing resistance I can get a value in between 1-2ohs for all the transistors. I'm afraid I committed a neweb mistake of using the wrong type of leads .

Another question one of the 2sk60s is a different grade than all the other vfets. 7 vfets are grade ha-55 and one 2sk60 is p55. I will test the 2sk60s tomorrow.

Good news Your 2SK60 are the same rank 55 grade.
Resistance and diode test of correct 2SJ18 show with lab multimeter
and other portative cheap version with this mesurement option included.
See diode symbol. Have a nice day

 

[Amorphous1]

This is very helpful thank you soundhappy.

 

[Soundhappy]

Wish Your Vfet's are OK

 

[AndriyOL]

Good news Your 2SK60 are the same rank 55 grade.
Resistance and diode test of correct 2SJ18 show with lab multimeter
and other portative cheap version with this mesurement option included.
See diode symbol. Have a nice day

Hi Soundhappy.

If you reverse the leads of lab multimeter the Ohm reading will be the same?

Thanks.

 

[Soundhappy]

Hi AndriyOL
Yes the same between Vfet source and drain 1~2 Ohm's.
Greetings

 

[AndriyOL]

I have with my cheap dmm - negative lead to D, positive lead to S = 2.6R, positive lead to D negative lead to S = 1.6R

 

[Soundhappy]

What show Your Vfet diode test's ?
VFET testing method and result

 

[AndriyOL]

Diode test ok. But 2.6R shows after 10 seconds. The reading starts from 3.5-4R and imidiately drops to 2.8-3R, than to 2.6R

 

[Soundhappy]

If diode test show OK that resistance test is fine as well imo.
Probably DMM imperfection