IRFU420 The IRFU420 is an N-Channel power MOSFET rated for 500V drain-source voltage and 2.4A continuous drain current with an on-resistance of 3 Ohm.
Mfr Part #:

IRFU420

Available from 1 distributors
Mfr Name: Harris Semiconductor
Harris Semiconductor
The IRFU420 is an N-Channel power MOSFET rated for 500V drain-source voltage and 2.4A continuous drain current with an on-resistance of 3 Ohm.
✓ Total Stock: 420 pcs

IRFU420 Available from 1 distributor

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IRFU420 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Configuration
Current
Drain to Source Voltage (Vdss)
FET Type
Gate Charge (Qg) (Max) @ Vgs
Input Capacitance (Ciss) (Max) @ Vds
Lead Style
Mounting Type
Operating Temperature
Power Dissipation (Max)
Rds On (Max) @ Id, Vgs
Supplier Device Package
Tape & Reel
Technology
Termination Style
Vgs (Max)
Vgs(th) (Max) @ Id

IRFU420 Description

Short technical summary and product information.

The IRFU420 is a third-generation N-Channel power MOSFET designed for fast switching and rugged performance. It features a drain-source voltage rating of 500V, continuous drain current of 2.4A at 25°C case temperature (1.5A at 100°C), and a maximum drain-source on-resistance of 3 Ohm at 2.4A and 10V gate drive.

 

This device supports repetitive avalanche energy up to 4.2 mJ and single-pulse avalanche energy up to 400 mJ, making it suitable for applications requiring high energy handling. The gate charge is 19 nC typical, with gate-source charge of 3.3 nC and gate-drain charge of 13 nC.

 

The IRFU420 is offered in a through-hole TO-251AA package (IPak) with straight leads, designed for easy PCB mounting. Power dissipation is rated at 42W at case temperature 25°C and 2.5W when mounted on a PCB at ambient temperature. The operating junction temperature range is -55°C to 150°C.

IRFU420 Quick Information

Product Type: Power MOSFET
Series: IRFR420/IRFU420/SiHFR420/SiHFU420
Canonical Name: IRFU420 N-Channel Power MOSFET, 500V, 2.4A, TO-251AA
Subcategory: N-Channel Power MOSFET

IRFU420 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 - Unlimited
REACH Status: REACH Unaffected
Lead Free: Yes

IRFU420 Features

  • 500V drain-source voltage rating.
  • 2.4A continuous drain current capability.
  • 3 Ohm on-resistance at 10V gate drive.
  • Avalanche rated up to 400 mJ single pulse.
  • Through-hole TO-251AA straight lead package.

IRFU420 Applications

  • Ideal for switching power supplies.
  • Use in motor control circuits.
  • Suitable for high-speed switching applications.
  • Common in industrial power conversion.

IRFU420 FAQs

5 frequently asked questions generated from this part’s specifications.
What is the maximum drain-source voltage of the IRFU420?

500V.

What is the continuous drain current rating?

2.4A at Tc=25°C; derated to 1.5A at Tc=100°C.

What is the on-resistance of the IRFU420?

Maximum 3 Ohm at Id=1.4A, Vgs=10V.

What package is the IRFU420 available in?

Through-hole TO-251AA (IPak) with straight leads.

What is the operating temperature range?

-55°C to 150°C (junction temperature).

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