Infineon HEXFET Type N-Channel MOSFET, 85 A, 150 V Enhancement, 3-Pin TO-220

RS Stock No.:: 178-1416
Mfr. Part No.:: IRFB4321PBF
Brand:: Infineon

Infineon HEXFET Type N-Channel MOSFET, 85 A, 150 V Enhancement, 3-Pin TO-220

Bulk discount available

Subtotal (1 tube of 50 units)*

£53.10

(exc. VAT)

£63.70

(inc. VAT)

FREE delivery for orders over £50.00

In Stock

350 unit(s) ready to ship

Need more? Click ‘Check delivery dates’ to find extra stock and lead times.

Units	Per unit	Per Tube*
50 - 50	£1.062	£53.10
100 - 200	£1.012	£50.60
250 +	£0.987	£49.35

*price indicative

RS Stock No.:: 178-1416
Mfr. Part No.:: IRFB4321PBF
Brand:: Infineon

Specifications

Technical Reference

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Infineon
	Product Type	MOSFET
	Channel Type	Type N
	Maximum Continuous Drain Current Id	85A
	Maximum Drain Source Voltage Vds	150V
	Package Type	TO-220
	Series	HEXFET
	Mount Type	Through Hole
	Pin Count	3
	Maximum Drain Source Resistance Rds	15mΩ
	Channel Mode	Enhancement
	Minimum Operating Temperature	-55°C
	Maximum Power Dissipation Pd	350W
	Maximum Gate Source Voltage Vgs	30 V
	Typical Gate Charge Qg @ Vgs	71nC
	Forward Voltage Vf	-1.2V
	Maximum Operating Temperature	175°C
	Width	4.82 mm
	Height	9.02mm
	Length	10.66mm
	Standards/Approvals	No
	Automotive Standard	No

	Select all
	Brand Infineon
	Product Type MOSFET
	Channel Type Type N
	Maximum Continuous Drain Current Id 85A
	Maximum Drain Source Voltage Vds 150V
	Package Type TO-220
	Series HEXFET
	Mount Type Through Hole
	Pin Count 3
	Maximum Drain Source Resistance Rds 15mΩ
	Channel Mode Enhancement
	Minimum Operating Temperature -55°C
	Maximum Power Dissipation Pd 350W
	Maximum Gate Source Voltage Vgs 30 V
	Typical Gate Charge Qg @ Vgs 71nC
	Forward Voltage Vf -1.2V
	Maximum Operating Temperature 175°C
	Width 4.82 mm
	Height 9.02mm
	Length 10.66mm
	Standards/Approvals No
	Automotive Standard No

IRFB4321PbF, HEXFET Power MOSFET

Motor Control and AC-DC Synchronous Rectifier MOSFET, Infineon

Motor Control MOSFET

Infineon offers a comprehensive portfolio of rugged N-channel and P-channel MOSFET devices for motor control applications.

Synchronous Rectifier MOSFET

A portfolio of synchronous rectification MOSFET devices for AC-DC power supplies supports the customer demands for higher power density, smaller size, more portability and more flexible systems.

MOSFET Transistors, Infineon

Infineon offers a large and comprehensive portfolio of MOSFET devices which includes the CoolMOS, OptiMOS and StrongIRFET families. They deliver best-in-class performance to bring more efficiency, power density and cost effectiveness. Designs requiring high quality and enhanced protection features benefit from AEC-Q101 industry standards Automotive qualified MOSFETs.

Infineon Schottky Diodes & MOSFETs – Matched for Power, Built for Efficiency

Pair Infineon Schottky diodes with Infineon MOSFETs for a high-efficiency power solution that’s optimised from the ground up. Designed to work together, they deliver fast switching, low losses, and excellent thermal performance—ideal for SMPS, motor drives, and automotive systems. Reduce design complexity and boost reliability with components engineered for synergy.

Explore the Infineon range today