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IRFR2405TRPBF

Updated: 2026-07-17

Overview

The IRFR2405TRPBF is a power MOSFET transistor manufactured by Infineon Technologies, designed for high-efficiency switching applications. It features a low on-resistance (RDS(on)) of 0.045Ω, which minimizes power loss and improves overall system efficiency. The device is housed in a TO-252 (DPAK) package, ensuring robust thermal performance and mechanical durability. It is commonly used in power supplies, motor control circuits, and DC-DC converters. This MOSFET is rated for a maximum drain-source voltage (VDS) of 55V and a continuous drain current (ID) of 44A, making it suitable for a wide range of industrial and automotive applications. Its fast switching speed and low gate charge further enhance its performance in high-frequency applications.

Structure and Working Principle

The IRFR2405TRPBF operates as an N-channel enhancement-mode MOSFET, meaning it requires a positive gate-source voltage (VGS) to conduct current between the drain and source. The device is constructed using advanced silicon technology, which provides low on-resistance and high current-handling capabilities. The TO-252 package includes a thermal pad to facilitate heat dissipation, ensuring reliable operation under high-power conditions. When a sufficient VGS is applied, the MOSFET enters the saturation region, allowing current to flow with minimal resistance. The device’s fast switching characteristics are achieved through optimized gate design, reducing transition times and improving efficiency in PWM (Pulse Width Modulation) applications.

Key Features

The IRFR2405TRPBF offers several key features that make it a preferred choice for power electronics designers. Its low on-resistance (RDS(on)) of 0.045Ω ensures minimal power dissipation, improving energy efficiency. The device supports a high continuous drain current (ID) of 44A, making it suitable for demanding applications. Additionally, the MOSFET’s fast switching speed and low gate charge (Qg) of approximately 30nC enable high-frequency operation, which is critical for modern power supplies and motor drives. The TO-252 package provides excellent thermal performance, with a low thermal resistance (RθJA) of 62°C/W, ensuring reliable operation even under heavy loads.

Application Areas

The IRFR2405TRPBF is widely used in various high-efficiency switching applications. In power supplies, it serves as a key component in buck and boost converters, ensuring efficient voltage regulation. The MOSFET is also employed in motor control circuits, where its fast switching speed and high current capability enable precise speed and direction control. Other common applications include DC-DC converters, battery management systems, and automotive electronics. Its robustness and reliability make it suitable for industrial environments, where it may be subjected to high temperatures and mechanical stress. The device’s versatility and performance have made it a staple in modern power electronics design.

Maintenance and Precautions

Proper handling and installation of the IRFR2405TRPBF are essential to ensure long-term reliability. When soldering, avoid excessive heat to prevent damage to the device. The thermal pad on the TO-252 package must be properly connected to a heatsink or PCB copper area to dissipate heat effectively. It is also important to avoid exceeding the maximum ratings for voltage, current, and temperature. Static electricity can damage the MOSFET, so anti-static precautions should be taken during handling. Regularly inspect the device for signs of overheating or physical damage, especially in high-stress applications.

B2B Procurement Guide

When procuring the IRFR2405TRPBF in bulk, consider factors such as lead time, pricing, and supplier reliability. Verify the authenticity of the components by purchasing from authorized distributors or reputable suppliers. Bulk pricing typically ranges from $0.50 to $1.50 per unit, depending on order volume and market conditions. Ensure compatibility with your design by reviewing the datasheet and confirming electrical and thermal requirements. For long-term projects, consider establishing contracts with suppliers to secure stable pricing and availability. Quality assurance measures, such as batch testing, can help prevent issues related to counterfeit or substandard components.

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