Infineon Technologies IRFR2405TRLPBF

Overview

IRFR2405TRLPBF from Infineon Technologies (formerly International Rectifier) is a 55 V, 56 A N-channel enhancement-mode power MOSFET in D-Pak surface-mount package, featuring 11.8 mΩ typical R_DS(on) at V_GS = 10 V, fully avalanche-rated, and optimized for high-efficiency DC-DC converters and motor control stages in industrial power supplies.

For engineers reviewing the IRFR2405TRLPBF datasheet, IRFR2405TRLPBF pinout, IRFR2405TRLPBF application, or IRFR2405TRLPBF equivalent, key selection criteria include its 1.4 °C/W junction-to-case thermal resistance, 70 nC total gate charge, 130 mJ single-pulse avalanche energy, and validated performance under repetitive unclamped inductive switching at I_AS = 34 A.

Technical Context

This HEXFET® Seventh Generation device uses advanced silicon processing to achieve low conduction loss while maintaining fast switching (t_r = 130 ns, t_f = 78 ns) and robust ruggedness. Its body diode exhibits 62 ns reverse recovery time and 170 nC Q_rr, enabling efficient synchronous rectification and hard-switched topologies.

The MOSFET supports gate drive voltages from −20 V to +20 V, with V_GS(th) ranging 2.0–4.0 V, and operates across −55 °C to +175 °C junction temperature. Its C_iss = 2430 pF and C_rss = 100 pF support stable high-frequency operation up to several hundred kHz.

Key Specifications

Pinout & Package

D-Pak (TO-252AA) surface-mount package with exposed drain pad for thermal and electrical connection; compatible with vapor-phase, infrared, and wave soldering per AN-994 footprint guidelines.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel power MOSFET applications.

Compared with STP55NF06L and IXTP50N055T, IRFR2405TRLPBF offers optimal balance of D-Pak manufacturability, 55 V rating margin, and 1.4 °C/W thermal resistance-making it preferred for high-volume, surface-mount industrial power modules where assembly yield and thermal reliability are jointly critical.

Availability

IRFR2405TRLPBF is available at Aetrix Electronics and suitable for industrial motor drives, DC-DC converters, and uninterruptible power supplies requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.

Supply support for IRFR2405TRLPBF includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies is a global semiconductor leader specializing in power management, automotive, and industrial control solutions, with core expertise in silicon and wide-bandgap device design.

This device belongs to the HEXFET® Seventh Generation power MOSFET product line, engineered specifically for high-efficiency, high-reliability switching in industrial power conversion and motor control applications where thermal robustness and avalanche immunity are mandatory.

FAQ

What is the maximum continuous drain current at 100°C case temperature?

The IRFR2405TRLPBF supports 40 A continuous drain current at T_C = 100°C, as specified in its Absolute Maximum Ratings table. This value reflects thermal derating due to reduced channel mobility and increased R_DS(on) at elevated temperatures, and assumes proper PCB copper area per AN-994 layout guidelines.

Is the body diode suitable for synchronous rectification in a 200 kHz flyback converter?

Yes-the body diode has 62 ns reverse recovery time and 170 nC Q_rr at T_J = 25°C, enabling efficient synchronous rectification up to 250 kHz. However, ensure gate drive timing avoids shoot-through, and verify thermal rise under actual load using the 1.4 °C/W R_θJC value.

Does this part require a gate resistor for stability in hard-switched applications?

A gate resistor (typically 2.2–10 Ω) is recommended to dampen ringing caused by gate loop inductance and Miller capacitance interaction. The 100 pF Crss and 70 nC Q_g make it susceptible to oscillation without controlled turn-on/turn-off slew rates, especially with fast drivers and long PCB traces.

Can IRFR2405TRLPBF replace IRFR2205 in an existing design?

Yes-both share identical D-Pak package, pinout, and voltage rating, but IRFR2405TRLPBF offers 25% lower R_DS(on) (11.8 mΩ vs. 15.6 mΩ) and higher I_D (56 A vs. 42 A), delivering measurable efficiency and thermal improvement without layout changes.