Vishay Siliconix IRF540STRR

Overview

IRF540STRR from Vishay Siliconix is a surface-mount N-channel power MOSFET in D2PAK (TO-263) package, rated for 100 V drain-source voltage, 28 A continuous drain current at T_C = 25 °C, and 0.077 Ω R_DS(on) at V_GS = 10 V. It delivers fast switching, repetitive avalanche capability, and 175 °C maximum junction temperature-commonly used in DC-DC converters, motor drives, and uninterruptible power supplies.

For engineers reviewing the IRF540STRR datasheet, IRF540STRR pinout, IRF540STRR application, or IRF540STRR equivalent, key selection criteria include its 72 nC total gate charge, 230 mJ single-pulse avalanche energy, body diode reverse recovery time of 180–360 ns, thermal resistance R_thJC = 1.0 °C/W, and suitability for high-current surface-mount power stages requiring ruggedness and paralleling capability.

Technical Context

This third-generation power MOSFET employs planar V-groove silicon technology optimized for low conduction loss and controlled switching behavior. Its dynamic dv/dt rating of 5.5 V/ns and built-in body diode with 2.5 V forward drop at 28 A support robust operation in inductive switching circuits.

The device features fully characterized gate charge components (Q_gs = 11 nC, Q_gd = 32 nC), defined safe operating area up to 100 V/28 A (single pulse), and linear derating of 1.0 W/°C above 25 °C case temperature-enabling precise thermal design in PCB-mounted applications.

Key Specifications

Pinout & Package

D2PAK (TO-263) surface-mount package with exposed drain tab for thermal and electrical connection; 3-terminal configuration (G, D, S); 15.88 mm × 10.67 mm footprint; 1.65 mm max height; RoHS-compliant lead-free and halogen-free construction.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IRF540NPbF, IRF540STRR offers superior thermal performance in surface-mount layouts and eliminates through-hole assembly steps; versus STP55NF06L, it provides essential 100 V rating and avalanche ruggedness for industrial and off-line power, despite higher gate charge and on-resistance.

Availability

IRF540STRR is available at Aetrix Electronics and suitable for DC-DC converters, motor drives, and uninterruptible power supplies requiring stable component supply, long-term industrial lifecycle support, and RoHS-compliant manufacturing.

Supply support for IRF540STRR 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

Vishay Siliconix is a global leader in discrete semiconductors, specializing in power MOSFETs, diodes, and optoelectronics with emphasis on ruggedness, precision, and high-reliability packaging.

The IRF540STRR belongs to Vishay's third-generation surface-mount power MOSFET family, engineered for high-current, high-temperature industrial and power conversion applications where low on-resistance, fast switching, and avalanche survivability are critical.

FAQ

What is the maximum continuous drain current rating for IRF540STRR at 100 °C case temperature?

The IRF540STRR supports 20 A continuous drain current at T_C = 100 °C, per its absolute maximum ratings table. This derating reflects thermal limitations of the D2PAK package under sustained high-power operation and must be validated against actual PCB layout and heatsinking conditions. The IRF540STRR maintains R_DS(on) stability across this range due to its positive temperature coefficient.

Does IRF540STRR have a built-in body diode, and what are its key parameters?

Yes, the IRF540STRR integrates a monolithic body diode with V_SD = 2.5 V at I_S = 28 A and T_J = 25 °C, reverse recovery time t_rr = 180–360 ns, and Q_rr = 1.3–2.8 μC. These values are measured under standardized conditions (I_F = 17 A, dI/dt = 100 A/μs) and confirm suitability for freewheeling in hard-switched topologies without external diode supplementation.

Is IRF540STRR pin-compatible with IRF540NPbF?

No, IRF540STRR uses a D2PAK (TO-263) surface-mount package with three terminals (G, D, S) and an exposed drain thermal pad, while IRF540NPbF uses a TO-220 through-hole package with different pin spacing, mounting holes, and thermal interface. They share identical electrical specifications but require distinct PCB footprints and assembly processes.

What is the gate threshold voltage range for IRF540STRR, and how does it affect drive requirements?

The IRF540STRR has a gate threshold voltage V_GS(th) of 2.0–4.0 V at I_D = 250 μA. This standard-level gate requires ≥10 V for full enhancement (R_DS(on) = 0.077 Ω), making it incompatible with 3.3 V or 5 V logic without level-shifting. Gate drive must supply sufficient current to charge 72 nC Q_g within desired switching times while managing Miller capacitance effects.

Can IRF540STRR be paralleled for higher current capacity, and what design considerations apply?

Yes, the IRF540STRR is explicitly designed for ease of paralleling due to its positive temperature coefficient of R_DS(on), which promotes current sharing. Key considerations include matched gate drive impedance (<5 Ω per device), symmetrical PCB layout with equal trace lengths, shared thermal plane, and individual gate resistors (≥10 Ω) to damp oscillation. The IRF540STRR's low Q_gd/Q_g ratio further enhances dynamic balance during switching transitions.