Help with MOSFETs identification

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sreekris

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Hello,
I'm working on a dry-well calibrator's power supply unit with 2 defective ST Microelectronics MOSFETs. The part numbers printed on the parts are 31N310 and 31P310 (photo attached).

I tried locating datasheets for these parts but couldn't find anything. Emailed ST but it's been over 2 months now with no answers. Will be appreciative if someone in this forum can help. Thanking you guys in advance.
 


Hi d123,
Thank you very much for your help. I believe "VNP20N.." is the correct part number and to be perfectly honest with you, I did not notice it until after reading your reply. Was completely fixed on those 31N310 and 31P310. Don't know why ...

Many many thanks again. Cheers....
 

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