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Best Replacement for MOSFET(Fuji 2SK3548-01SC)?
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Topic: Best Replacement for MOSFET(Fuji 2SK3548-01SC)? (Read 1204 times)
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Trurl
Regular Contributor
Posts: 114
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Best Replacement for MOSFET(Fuji 2SK3548-01SC)?
«
on:
January 03, 2020, 03:21:16 am »
My failed Dell monitor(2407WFPb) psu
https://www.scribd.com/doc/207782153/Dell-2407-WFP-Power-Supply-Rev-A11-Schematic-Diagram
has a TO-3P MOSFET(
Fuji 2SK3548-01SC
)
https://www.datasheetq.com/datasheet-download/139786/1/Fuji/2SK3548
which needs an alternative replacement.
My initial choice:
ON
Semi(Fairchild)
FQA11N90_F109
https://www.onsemi.com/pub/Collateral/FQA11N90_F109-D.PDF
has 11A Drain Current(1A higher than the 10A of the Fuji), but I noticed that the
Rds(On) is quite lower and Qg is quite higher
as well.
So now I'm
considering a 9A Drain Current version with Rds(On) and Qg much closer to the original
.
ON
Semi(Fairchild)
FQA9N90C_F109
https://www.onsemi.com/pub/Collateral/FQA9N90C_F109-D.PDF
I'm thinkin' that the 9A Drain Current spec is conservative as there are references to 11A in the Turn On Times and Gate Charges Test Conditions.
I think the 9A version would be an overall closer match to the original part than the 11A version. Which do you think would be the safer/better choice?
Thanks…
«
Last Edit: January 03, 2020, 03:24:29 am by Trurl
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