Mfr Part #:

IRFB4020PBF

Mfr Name: Infineon

The Infineon IRFB4020PBF is an N-channel MOSFET designed for Class-D audio amplifier applications. It offers optimized parameters for efficiency and performance.

✓ Total Stock: 17,516 pcs

$ Price Range: $2.58

IRFB4020PBF Available from 3 distributors

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Optech Co.,Limited ✓ Non-Authorised Inventory information	8,085 pcs On Request	8085 pcs	On Request	1	On Request	On Request	21+	On Request	On Request
Smaxon Electronics ✓ Non-Authorised Inventory information	8,000 pcs On Request	8000 pcs	On Request	1	On Request	On Request	21+	On Request	On Request
Xingangxin ✓ Non-Authorised Inventory information	1,431 pcs On Request	1431 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

IRFB4020PBF Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	Infineon
Gate Charge	18 nC
Lead Spacing	2.54 mm
Mounting Type	Through Hole

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IRFB4020PBF Description

Short technical summary and product information.

The Infineon IRFB4020PBF is a digital audio MOSFET specifically engineered for Class-D audio amplifier applications. It utilizes advanced processing techniques to achieve low on-resistance per silicon area, contributing to improved efficiency.

Key electrical characteristics include a Drain-to-Source Voltage (Vds) of 200V, a continuous drain current of 52A at 25°C, and a typical on-resistance (RDS(on)) of 80mΩ at 10V gate-source voltage. The device also features optimized gate charge (Qg) and gate-source charge (Qsw) for better Total Harmonic Distortion (THD) and efficiency, along with low reverse recovery charge (QRR) for reduced EMI.

This MOSFET is built for ruggedness with a maximum operating junction temperature of 175°C and repetitive avalanche capability. It is housed in a TO-220AB package, suitable for through-hole mounting.

The IRFB4020PBF is designed to deliver up to 300W per channel into an 8Ω load in a half-bridge configuration, making it a robust and reliable component for high-performance audio amplification.

IRFB4020PBF Quick Information

Product Type: MOSFET

Canonical Name: IRFB4020PBF N-channel MOSFET

Subcategory: N-Channel

IRFB4020PBF Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

IRFB4020PBF Estimated Pricing

Qty	Low	High
1+	$2.58	$2.58

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

IRFB4020PBF Features

Optimized for Class-D audio amplifiers.
Low RDS(ON) for improved efficiency.
Low Qg and Qsw for better THD.
175°C operating junction temperature.
TO-220AB package for through-hole mounting.

IRFB4020PBF Applications

Suitable for Class-D audio amplifier circuits.
Ideal for high-efficiency power switching applications.
Used in rugged, high-temperature electronic environments.
Applicable in motor control and power management.
Suitable for high-current, low-voltage switching tasks.

IRFB4020PBF FAQs

7 frequently asked questions generated from this part’s specifications.

What is the maximum Drain-to-Source Voltage (Vds) for the IRFB4020PBF?

The maximum Drain-to-Source Voltage (Vds) is 200V.

What is the typical On-Resistance (RDS(on)) of the IRFB4020PBF at 10V?

The typical On-Resistance (RDS(on)) at 10V is 80mΩ.

What is the maximum operating junction temperature for this MOSFET?

The maximum operating junction temperature is 175°C.

What package type is the IRFB4020PBF supplied in?

The IRFB4020PBF is supplied in a TO-220AB package.

Is the IRFB4020PBF RoHS compliant?

The RoHS Status is RoHS3 Compliant.

What is the Moisture Sensitivity Level (MSL) for the IRFB4020PBF?

The Moisture Sensitivity Level (MSL) is 1 Unlimited.

What is the REACH status for the IRFB4020PBF?

The REACH Status is REACH Unaffected.