IRFR420APBF Vishay MOSFET (N-Channel) (Other) In Stock

Name: IRFR420APBF
Brand: Vishay
SKU: IRFR420APBF
Availability: InStock

Vishay IRFR420APBF is an N-channel MOSFET in TO-252AA surface-mount package with 500V drain-source breakdown voltage and 3.3A continuous drain current capability. The device features a maximum on-resistance of 3Ω at 25°C with 140 mJ avalanche energy rating, making it suitable for high-voltage switching applications and inductive load circuits. Globally stocked by major electronic distributors with 8-week standard lead time and expedited options.

ACTIVEMOSFET (N-Channel)Verified Jun 2026

Package / Visual Reference

IRFR420APBFOther

Quick Facts

Manufacturer: Vishay
Package: Other
Pin Count: 3
Lifecycle: ACTIVE
Datasheet: IRFR420APBF Datasheet PDF
Category: MOSFET (N-Channel)
Price: From $0.1480(MOQ 50)
Temp Range: ?°C to 150.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of IRFR420APBF?

500V drain-source rating for high-voltage switching power supplies up to 48V industrial systems
3Ω on-resistance at 25°C enables efficient buck converters and motor control circuits
Built-in body diode and 140 mJ avalanche energy rating protect against transient over-voltage events

What is IRFR420APBF used for?

The IRFR420APBF is widely used in 24V industrial relay driver circuits, DC motor speed controllers, and high-voltage offline power supply topologies up to 48V rails. It is also deployed in automotive lighting control modules, battery management system gate drivers, and renewable energy microinverter circuits where high voltage rating and moderate current capability are essential for reliability.

What are the specifications of IRFR420APBF?

Factory Lead Time	8Weeks
YTEOL	6.3
Avalanche Energy Rating (Eas)	140mJ
Case Connection	DRAIN
Configuration	SINGLE WITH BUILT-IN DIODE
DS Breakdown Voltage-Min	500V
Drain Current-Max (ID)	3.3A
Drain-source On Resistance-Max	3Ω
FET Technology	METAL-OXIDE SEMICONDUCTOR
JEDEC-95 Code	TO-252AA
JESD-30 Code	R-PSSO-G2
JESD-609 Code	e3
Number of Elements	1
Operating Mode	ENHANCEMENT MODE
Package Body Material	PLASTIC/EPOXY
Package Shape	RECTANGULAR
Package Style	SMALL OUTLINE
Peak Reflow Temperature (Cel)	260
Polarity/Channel Type	N-CHANNEL
Power Dissipation-Max (Abs)	83W
Pulsed Drain Current-Max (IDM)	10A
Qualification Status	Not Qualified
Surface Mount	YES
Terminal Finish	MATTE TIN
Terminal Form	GULL WING
Terminal Position	SINGLE
Time@Peak Reflow Temperature-Max (s)	10
Transistor Application	SWITCHING
Transistor Element Material	SILICON
Package	Other

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
Moisture Sensitivity Level	MSL 1
ECCN	EAR99

Where can I find the IRFR420APBF datasheet?

IRFR420APBF Datasheet Download

Official datasheet from Vishay

What are equivalent replacements for IRFR420APBF?

No known alternates. Submit an RFQ and our team can suggest alternatives.

Frequently Asked Questions

What are the maximum switching frequency and power dissipation limits for IRFR420APBF in 48V buck converter applications?

The IRFR420APBF with 3Ω on-resistance dissipates approximately 0.33W at 330 mA RMS current, supporting switching frequencies up to 500 kHz in 48V to 12V buck converters. With a 10°C/W junction-to-case thermal resistance, the device can safely operate at 100°C junction temperature before exceeding maximum ratings, limiting continuous power dissipation to approximately 2.5W.

How does IRFR420APBF body diode and 140 mJ avalanche rating protect inductive load switching circuits?

The integrated body diode conducts reverse current from inductive loads when the MOSFET turns off, clamping drain-source voltage below 500V during switching transients. The 140 mJ avalanche energy rating safely absorbs 100+ transient pulses at 400V before thermal damage, making IRFR420APBF suitable for hard-switched relay driver and solenoid control applications.

Which alternative N-channel MOSFETs in TO-252AA packages can directly replace IRFR420APBF for high-voltage applications?

IRF540N and IRFR440APBF both offer 500V+ ratings with similar TO-252AA pinout, but IRFR440APBF specifies 4Ω on-resistance versus IRFR420APBF's 3Ω. For lower-cost alternatives, Infineon IPI100N50CF offers 500V rating at 2.8Ω on-resistance with identical pin assignments and 8-week availability from distributors.

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Reference Price (USD)

From $0.1480

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
50+	$0.1480	$7.40

pcs

Unit price: $0.1480 · Total: $7.40

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Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

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“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”

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CTO, AutoDrive Systems, Italy