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kamalkant Pandey
kamalkant Pandey
Visitor II
August 17, 2017
Question

STL160NS3LLH7

  • August 17, 2017
  • 1 reply
  • 539 views
Posted on August 17, 2017 at 07:06

We have purchased 10 qty of STL160NS3LLH7 MOSFET IC. We found that Drain to source impedance of MOSFETs is varying( NOTE : MOSFET were not connected to any external circuitry while measuring impedance using DMM). For some of the MOSFETs it was around 1kOhm for others it was 2kOhm and 3kOhm also. I am not getting same performance with all the MOSFETs. I think that this because of this variation in Drain to source impedance. I have never seen such a peculiar behavior of MOSFETs. Is it a manufacturing problem or these MOSFETs behave like this only? Please explain!

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1 reply

fabio criscione_O
fabio criscione_O
Visitor II
August 31, 2017
Posted on August 31, 2017 at 15:29

Hi,

Gate Source Voltage is fixed to 0 during these measurement?

this is import, otherwise if this value is different from zero, a small current could flow trough the MOSFET and could give different Drain to source impedance 

regards

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