How to properly test STP9NK50ZFP transistor mosfet

Discussion in 'General Electronics Chat' started by rastaman46, Mar 9, 2016.

  1. rastaman46

    Thread Starter Member

    Nov 17, 2011
    69
    0
    Hi all again.

    How to properly test STP9NK50ZFP transistor mosfet using digital multimeter what readings should I get??

    Now if I connect in this order

    (S) to (Negative) Then (G) to (positive) result LO

    (S) to (Negative) Then (D) to (positive) result LO

    (S) to (Negative) Then (G) to (positive) and then (D) to (positive) result is still LO

    All done in diode testing mode is here I missing something???

    Thanks everyone
    REgards
     
  2. dl324

    Distinguished Member

    Mar 30, 2015
    3,211
    619
    You can't "test" a MOSFET with the diode test function on a meter. The only PN junction in a MOSFET is the parasitic diode across the S/D.
     
    rastaman46 likes this.
  3. rastaman46

    Thread Starter Member

    Nov 17, 2011
    69
    0
    Thanks for reply but how do I check it ?
    can you pont me out here please

    Regards
     
  4. dl324

    Distinguished Member

    Mar 30, 2015
    3,211
    619
    I'd use a curve tracer. If you don't have access to one, you have to build a circuit to test them.
     
    rastaman46 likes this.
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