IRFP9240 Pinout, Equivalent Application, Datasheet

Before integrating this device into high-power audio amplifiers, SMPS circuits, or industrial power stages, it is crucial to understand the IRFP9240 pinout, as correct Gate, Drain, and Source identification ensures safe operation, maximum efficiency, and long-term reliability. The IRFP9240 is a rugged P-channel MOSFET designed for high-current, high-voltage, and high-power applications, making it highly popular in professional audio systems, H-bridge motor drivers, and high-performance power electronics.

Introduction to IRFP9240 P-Channel MOSFET

The IRFP9240 is a high-power P-channel MOSFET optimized for demanding switching and linear applications. With a –200V VDS rating, –12A continuous drain current, and 150W power dissipation, it is commonly used in high-fidelity audio amplifiers and high-voltage control circuits. Its low RDS(on) characteristics and robust thermal handling allow it to operate reliably in environments where stability and efficiency are critical. The TO-247 package provides excellent heat dissipation for heavy-duty power stages.

IRFP9240 P-Channel MOSFET

Pinout of IRFP9240

Pin Configuration of IRFP9240 Pinout

Understanding the IRFP9240 Pinout Configuration

The IRFP9240 comes in a TO-247 package with the following G-D-S pin arrangement:

• Gate – controls the MOSFET channel
• Drain – main current input
• Source – main current output

Knowing the IRFP9240 pinout is essential to prevent reverse wiring, circuit failure, and device damage in high-power circuits.

Key Features of IRFP9240 MOSFET

• High-voltage P-channel MOSFET
• Excellent thermal stability
• Fast switching performance
• Rugged and reliable power dissipation
• Low RDS(on) for efficient operation
• Suitable for audio power amplifiers and SMPS

IRFP9240 MOSFET Datasheet and Specifications

• Type: P-Channel Power MOSFET
• Drain-Source Voltage (VDS): –200V
• Gate-Source Voltage (VGS): ±20V
• Continuous Drain Current (ID): –12A
• Pulsed Drain Current (IDM): –48A
• Maximum Power Dissipation (PD): 150W
• On-State Resistance (RDS(on)): 0.5Ω
• Junction Temperature (TJ): –55°C to +150°C
• Package Type: TO-247
• Pin Configuration: Gate – Drain – Source

Working Principle of IRFP9240 MOSFET

The IRFP9240 operates as a P-channel enhancement MOSFET, where applying a negative gate-to-source voltage allows controlled current flow from Source to Drain. It supports high-voltage switching and linear amplification modes, making it suitable for both class-AB audio output stages and high-voltage load control circuits. Its strong thermal capability and smooth transfer characteristics ensure stability in precision and high-current designs.

More Circuit Layouts

Applications of IRFP9240 MOSFET

• High-fidelity audio power amplifiers
• Class-AB and Class-D amplifier output stages
• High-voltage switching circuits
• Motor control H-bridge circuits
• Battery management and load switching
• SMPS and inverter modules
• Industrial power electronics

Equivalent and Alternative MOSFETs

• IRFP9240PBF
• IRF9540 (lower power alternative)
• FQP27P06 (lower voltage option)
• IRFP9140 (similar device, different ratings)

(Always verify pinout, voltage rating, and thermal specs before substitution.)

Frequently Asked Questions (FAQ)

Q1: What is the pinout of IRFP9240?
TO-247 package: Gate – Drain – Source.

Q2: Is IRFP9240 suitable for audio amplifier circuits?
Yes, it is one of the most widely used P-channel MOSFETs in Hi-Fi audio output stages.

Q3: Can IRFP9240 handle high voltage?
Yes, it supports –200V, suitable for high-voltage amplifier rails and power control.

Q4: Is it complementary to IRFP240?
Yes, IRFP9240 (P-channel) is commonly paired with IRFP240 (N-channel).

Conclusion

The IRFP9240 is a powerful, reliable, and thermally efficient P-channel MOSFET ideal for high-voltage and high-current electronic designs. Its rugged construction, stable performance, and excellent audio linearity make it a preferred choice for professional audio amplifiers, power switching systems, and industrial electronic equipment. Understanding its pinout, specifications, and operating characteristics ensures maximum performance and long-term reliability in any power application.

Datasheet & Pinout of IRFP9240 P-Channel MOSFET

Click the following Button to download the datasheet of IRFP9240 MOSFET :

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