IRFU320PBF N-Channel power MOSFET rated for 400V drain-source voltage and 3.1A continuous drain current. Features low on-resistance of 1.8Ω at 10V gate drive in a TO-251AA through-hole package.
Mfr Part #:

IRFU320PBF

Available from 3 distributors
Mfr Name: Vishay
Vishay
N-Channel power MOSFET rated for 400V drain-source voltage and 3.1A continuous drain current. Features low on-resistance of 1.8Ω at 10V gate drive in a TO-251AA through-hole package.
✓ Total Stock: 99,733 pcs
$ Price Range: $0.90 - $2.57

IRFU320PBF Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
96,000 pcs
96000 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16
Non-Authorised Inventory information
2,733 pcs
2733 pcs On Request 1 On Request On Request 0606+0611+ On Request On Request
Non-Authorised Inventory information
1,000 pcs
1000 pcs On Request 1 On Request On Request On Request On Request On Request

IRFU320PBF Specifications Quick View

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

IRFU320PBF Description

Short technical summary and product information.

The IRFU320PBF is an N-Channel power MOSFET from Vishay Siliconix, a third-generation device designed for fast switching and ruggedness. It features a drain-source voltage rating of 400V and a continuous drain current of 3.1A at 25°C with 10V gate drive, derated to 2.0A at 100°C. The maximum on-resistance is 1.8Ω at Id=1.9A and Vgs=10V, ensuring low conduction losses.

 

The device is avalanche rated with a single pulse avalanche energy of 160mJ and repetitive avalanche energy of 4.2mJ, making it suitable for harsh environments. The total gate charge is 20nC at 10V, and input capacitance is 350pF at Vds=25V, enabling fast switching.

 

Packaged in a TO-251-3 (IPak) through-hole package with straight leads, the IRFU320PBF is Pb-free compliant and has a halogen-free option (SiHFU320). It is designed for applications such as switching power supplies, motor control, and high-voltage DC-DC converters. Maximum power dissipation is 42W at case temperature 25°C and 2.5W at ambient temperature on PCB.

IRFU320PBF Quick Information

Product Type: Power MOSFET
Series: IRFU320
Canonical Name: IRFU320PBF N-Channel Power MOSFET
Subcategory: N-Channel Power MOSFET

IRFU320PBF Compliance

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

IRFU320PBF Estimated Pricing

Qty Low High
1+ $2.57 $2.57
10+ $1.65 $1.65
75+ $1.18 $1.18
150+ $1.06 $1.06
525+ $0.90 $0.90

Estimated market price range - modelled values for guidance only, not live distributor offers.

IRFU320PBF Features

  • N-Channel MOSFET with 400V drain-source voltage.
  • Continuous drain current of 3.1A at 25°C.
  • Maximum on-resistance of 1.8Ω at 10V gate drive.
  • Through-hole TO-251AA package with straight leads.
  • Avalanche rated for rugged applications.

IRFU320PBF Applications

  • Used in switching power supplies and converters.
  • Ideal for motor control circuits.
  • Suitable for high-voltage DC-DC converters.
  • Applicable in lighting ballasts and inverters.

IRFU320PBF FAQs

7 frequently asked questions generated from this part’s specifications.
What is the drain-source voltage rating of the IRFU320PBF?

400V.

What is the continuous drain current rating?

3.1A at Tc=25°C with Vgs=10V; derated to 2.0A at Tc=100°C.

What is the maximum on-resistance?

Maximum 1.8Ω at Id=1.9A and Vgs=10V.

What package is the IRFU320PBF available in?

TO-251-3 Short Leads, IPak, TO-251AA through-hole package.

What is the operating temperature range?

Junction temperature range -55°C to 150°C.

Is the IRFU320PBF RoHS compliant?

Yes, RoHS3 compliant per Vishay datasheet.

What is the gate threshold voltage?

Maximum 4V at Id=250µA.

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