IRFP450 Pinout, Equivalent, Application, Datasheet

Before using this device in high-voltage SMPS circuits, motor drivers, or industrial power converters, it is essential to understand the IRFP450 pinout, as correct identification of its Gate, Drain, and Source pins ensures safe handling and reliable switching performance. The IRFP450 is a high-voltage, high-power N-Channel MOSFET designed for demanding applications such as inverters, power supplies, induction heaters, and high-frequency switching circuits where efficiency and rugged reliability are crucial.

Introduction to IRFP450 N-Channel MOSFET

The IRFP450 is a powerful N-Channel enhancement-mode MOSFET designed for high-voltage and medium-to-high current switching applications. With a 500V drain-source voltage and 14A continuous current capability, it is widely used in SMPS power supplies, industrial converters, and motor control circuits. Its low RDS(on) of 0.06Ω, combined with a robust 190W power dissipation rating, makes it a reliable choice for high-efficiency, high-frequency switching. The TO-247 package ensures excellent heat dissipation for long-term, high-power operation.

IRFP450 N-Channel MOSFET

Pinout of IRFP450

Understanding the IRFP450 Pinout Configuration

The IRFP450 comes in a TO-247 package with a G-D-S (Gate–Drain–Source) pin sequence.
Below is the pin configuration:

Pin Configuration of IRFP450 Pinout

Correctly wiring the IRFP450 is crucial for preventing accidental short circuits or thermal failure.

Key Features of IRFP450 MOSFET

• High voltage capability (500V)
• Low RDS(on) for reduced conduction losses
• High current handling for industrial power systems
• Fast switching performance
• Rugged TO-247 package for superior heat dissipation
• High pulsed current capability
• Reliable operation in high-temperature environments

IRFP450 MOSFET Datasheet and Specifications

• Type: N-Channel MOSFET
• Drain-Source Voltage (VDS): 500V
• Gate-Source Voltage (VGS): ±20V
• Continuous Drain Current (ID): 14A
• Pulsed Drain Current (IDM): 56A
• Total Power Dissipation (Ptot): 190W
• On-Resistance (RDS(on)): 0.06Ω
• Operating Junction Temperature (TJ): –65°C to +150°C
• Package Type: TO-247
• Pin Configuration: G-D-S

Working Principle of IRFP450 MOSFET

The IRFP450 works as a voltage-controlled switch where applying a positive voltage between Gate and Source enables conduction from Drain to Source. Its high-voltage N-Channel structure allows efficient switching in circuits operating up to 500V. The low RDS(on) ensures minimal heat generation during conduction, while its fast switching capability makes it suitable for SMPS, inverter stages, induction heaters, and high-frequency converters. Its rugged design ensures stable operation even under high current and thermal stress.

More Circuit Layouts

Applications of IRFP450 MOSFET

• SMPS (Switch Mode Power Supplies)
• High-voltage DC-DC converters
• Inverter power stages
• Motor drivers and industrial control circuits
• Induction heating circuits
• Power amplifiers
• UPS systems
• High-frequency switching applications

Equivalent and Alternative MOSFETs

Equivalent / Similar MOSFETs:

• IRFP460 (higher voltage rating)
• IRFP450A
• IXFH26N50
• STW11NK50Z

Possible Alternatives (verify ratings):

• IRF740
• IRFP250N
• FQA20N50C
• FCP11N60

Frequently Asked Questions (FAQ)

Q1: What is the pinout of the IRFP450?
It uses the G-D-S pin arrangement in a TO-247 package.

Q2: Can IRFP450 be used in high-frequency SMPS?
Yes, it is commonly used in SMPS circuits due to its fast switching performance.

Q3: Is the IRFP450 suitable for induction heater projects?
Yes, it is frequently used in hobby and industrial induction heating circuits.

Q4: What is the difference between IRFP450 and IRFP460?
IRFP460 has a higher voltage rating (500V vs 600V), making it suitable for slightly more demanding applications.

Conclusion

The IRFP450 is a highly efficient and robust N-Channel MOSFET designed for power electronics applications requiring high voltage, strong current capability, and fast switching. With its rugged TO-247 package, low RDS(on), and 190W dissipation rating, it offers excellent reliability for inverters, SMPS, converters, and industrial power systems. Its proven durability and high performance make it an excellent choice for both professional and DIY high-voltage designs.

Datasheet & Pinout of IRFP450 N-Channel MOSFET

Click the following Button to download the datasheet of IRFP450 MOSFET :

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