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Infineon Technologies BUZ111S

Infineon BUZ111S N-Channel Power MOSFET, 55 V, 80 A

MPNBUZ111S
End of Life

Infineon SIPMOS N-Channel Power MOSFET, BUZ111S, 55 V Vdss, 80 A continuous drain, 8 mOhm Rds(on) at 10 V, TO-220-3 through-hole package, -55 to 175 °C operating temperature.

$0.79Ref. price · indicative, final on quote
Infineon Technologies BUZ111S datasheet (PDF)
PackagingTO-220-3
RoHSRoHS non-compliant
SeriesSIPMOS®
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

BUZ111S specifications
ParameterValue
SeriesSIPMOS®
FET typeN-Channel
MountingThrough Hole
Drain to source voltage55 V
Drive voltage (Max rds on, min rds on)10V
Current - continuous drain (Id) @ 25°C80A (Tc)
Power dissipation300W (Tc)
Operating temperature-55°C ~ 175°C (TJ)
PackageBulk
Vgs±20V
TechnologyMOSFET (Metal Oxide)
CaseTO-220-3
Vgs(th) (Max) @ id4V @ 240µA
Rds on (Max) @ id, vgs8mOhm @ 80A, 10V
Gate charge (Qg) (Max) @ vgs185 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds4500 pF @ 25 V

Product details

What the 8 mOhm Rds(on) means on a 55 V, 80 A MOSFET

Vdss is 55 V.

Gate drive and switching — what the numbers tell you

That is a moderate gate charge for a TO-220 device — a standard gate driver IC can switch it at tens of kHz without excessive drive current.

Lifecycle and compliance — active, but watch the RoHS flag

One catch: it is listed as RoHS non-compliant. If your assembly line or end-market requires RoHS exemption-free compliance, you will need to qualify an alternative or accept the lead-bearing finish. The TO-220-3 package and through-hole mounting make it a straightforward hand-solder or wave-solder part in a service or low-volume production environment.

Frequently asked questions

What is the BUZ111S datasheet?

Design engineers need the datasheet to verify electrical characteristics and ensure fit in their circuit.

How much does BUZ111S cost?

Sourcing buyers need price to budget and compare across distributors.

Where can I buy BUZ111S?

Transactional buyers want immediate purchase options and distributor links.

What is the pinout of BUZ111S?

Maintenance techs and engineers need pinout for correct installation and troubleshooting.

Is BUZ111S equivalent to IRFZ44?

Buyers and brokers often cross-reference BUZ111S with common parts like IRFZ44 to find substitutes.

What is the BUZ111S replacement?

When BUZ111S is out of stock or obsolete, buyers need a direct replacement that meets the same specs.