Infineon HEXFET N-Channel MOSFET, 317 A, 40 V TO-220AB IRFB7434PBF

View all MOSFETs
Save 27% when you buy 200 units

Subtotal (1 pack of 2 units)*

£2.86

(exc. VAT)

£3.44

(inc. VAT)

Add to Basket
Select or type quantity
In Stock
  • 492 unit(s) ready to ship
  • Plus 999,999,506 unit(s) shipping from 01 January 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
Per Pack*
2 - 18£1.43£2.86
20 - 48£1.29£2.58
50 - 98£1.20£2.40
100 - 198£1.115£2.23
200 +£1.03£2.06

*price indicative

Packaging Options:
RS Stock No.:
257-9358
Mfr. Part No.:
IRFB7434PBF
Brand:
Infineon
Find similar products by selecting one or more attributes.
Select all

Brand

Infineon

Channel Type

N

Maximum Continuous Drain Current

317 A

Maximum Drain Source Voltage

40 V

Series

HEXFET

Package Type

TO-220AB

Mounting Type

Through Hole

The Infineon IRFB series is the 40V single n channel strong IRFET power mosfet in a TO 220 package. The strong IRFET power mosfet family is optimized for low RDS (on) and high current capability. The devices are ideal for low frequency applications requiring performance and ruggedness. The comprehensive portfolio addresses a broad range of applications including dc motors, battery management systems, inverters, and dc-dc converters.

High current rating
Product qualification according to JEDEC standard
Silicon optimized for applications switching below 100 kHz
Softer body diode compared to previous silicon generation
Industry standard through hole power package
Wide portfolio available


Sponsored
Infineon CoolSic Schottky Diode
Infineon Logo
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

Related links