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ProductsDiscrete SemiconductorsIRF540NPBF
PACKAGE REFERENCETO-220ABConfirm case, pinout and ordering suffix before purchase.
MANUFACTURER PART RECORD

IRF540NPBF

Infineon Technologies

IRF540NPbF is an Infineon 100 V N-channel power MOSFET in TO-220AB — for motor drives, SMPS and high-current switching: the industry workhorse for 100 V bus designs. 33 A continuous drain current, 44 mΩ maximum Rds(on), 47.3 nC total gate charge, -55°C to +175°C junction range. Heat evidence: Nexperia supply disruption has triggered rush buying of alternative MOSFETs from Infineon, onsemi and ST — the IRF540 is among the most universally stocked power FETs. Selection advice: the PbF suffix is lead-free/RoHS-compliant — same die as the legacy IRF540N, specify PbF for all new builds; for 55 V and lower buses the IRFZ44N cuts conduction losses significantly. Parameters verified against Infineon documentation.

Discrete SemiconductorsN-channel power MOSFETTO-220AB
MPN
IRF540NPBF
Manufacturer
Infineon Technologies
Family
N-channel power MOSFET
Package
TO-220AB
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