Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Discrete Semiconductor Products > Transistors > FETs, MOSFETs > FETs, MOSFETs

Infineon Technologies IRFU7540PBF

Name: IRFU7540PBF
Brand: Infineon Technologies
SKU: IRFU7540PBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: IRFU7540PBF

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-251-3 Short Leads, IPAK, TO-251AA

Datasheet:: IRFU7540PBF.pdf

Description:: MOSFET N-CH 60V 90A IPAK

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:5,777

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

IRFU7540PBF from Infineon Technologies (formerly International Rectifier) is a 60V, 4.0mΩ typ. N-channel enhancement-mode HEXFET® Power MOSFET in I-Pak package, optimized for high-current switching in motor drives and DC/DC converters. It delivers 90A continuous drain current (package-limited), supports synchronous rectification, and features enhanced body diode dV/dt capability up to 11 V/ns at 175°C.

For engineers reviewing the IRFU7540PBF datasheet, IRFU7540PBF pinout, IRFU7540PBF application, or IRFU7540PBF equivalent, key selection criteria include R_DS(on) at 6V gate drive, avalanche energy rating (273 mJ), thermal resistance (1.05°C/W junction-to-case), and body diode recovery performance (Q_rr = 36 nC at 25°C).

Technical Context

This MOSFET employs planar silicon technology with optimized cell pitch and trench-free structure to achieve low on-resistance while maintaining robust unclamped inductive switching capability. Its gate threshold voltage (2.1–3.7V) enables compatibility with 5V and 3.3V logic-level drivers without external level-shifting.

The device integrates a fast, soft-recovery body diode characterized for 66A reverse recovery current and 34ns trr at 25°C, supporting high-frequency resonant topologies and OR-ing applications where reverse conduction and diode recovery dynamics are critical.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	60V - Maximum blocking voltage before avalanche onset; suitable for 48V bus systems with margin.
R_DS(on) max	4.8mΩ @ V_GS = 10V, I_D = 66A - Enables <1W conduction loss at 66A, reducing heatsink requirements.
I_D (package)	90A @ T_C = 25°C - Real-world continuous current limit defined by leadframe thermal capacity, not silicon.
E_AS	273mJ - Single-pulse avalanche energy at T_J = 25°C, L = 1mH; supports robust fault handling in bridge circuits.
Q_gd	27nC - Gate-to-drain charge determines Miller plateau duration and switching speed control in hard-switched converters.
trr	34ns @ T_J = 25°C - Fast body diode recovery minimizes switching losses and EMI in synchronous rectifiers.
R_θJC	1.05°C/W - Low junction-to-case thermal resistance enables direct mounting to heatsinks for high-power density designs.

Pinout & Package

I-Pak package (TO-251AA): surface-mount variant of TO-220 with isolated tab, 3-pin single-ended configuration, designed for PCB thermal relief and automated assembly.

Pin/Terminal	Circuit Role	Design Meaning
Drain (D)	Main current path collector	Internally connected to metal tab; must be electrically isolated from heatsink unless referenced to system ground.
Source (S)	Current return path / reference node	Low-inductance connection point for gate driver return and current sensing; defines local ground for gate drive loop.
Gate (G)	Control terminal	High-impedance input requiring <2.4Ω series resistance to damp ringing; sensitive to ESD (±20V absolute max).

Key Features

Feature	Design Value
Enhanced body diode dV/dt capability	11 V/ns at T_J = 175°C - Prevents spurious turn-on during high-speed commutation in half-bridge configurations.
Fully characterized avalanche SOA	273 mJ single-pulse rating with validated waveforms (Fig. 23a/b) - Enables reliable operation under unclamped inductive load faults.
Low Q_gd/Q_g ratio	27nC / 86nC = 0.31 - Improves controllability during Miller region, reducing risk of shoot-through in bridge topologies.
Lead-free, RoHS-compliant construction	Meets JEDEC J-STD-020 moisture sensitivity level 1 - Supports lead-free reflow without preconditioning or baking.

Applications

Brushed Motor Drive

BLDC Motor Drive

Use Scenario: H-bridge control of 24–48V DC motors in power tools and automotive accessories.

IC Role / Device Role / Timing Role: High-side and low-side switching element with bidirectional current handling via body diode during PWM freewheeling.

Use Value: 4.8mΩ R_DS(on) limits I²R loss to ≤30W at 85A peak, enabling compact thermal design without forced air cooling.

Use Scenario: Six-step commutation in 3-phase BLDC inverters for e-bikes and HVAC blowers.

IC Role / Device Role / Timing Role: Low-side switch in inverter leg; body diode conducts reverse current during dead-time intervals.

Use Value: 34ns trr and 11 V/ns dV/dt rating suppress voltage spikes and reduce snubber losses at 20kHz switching frequency.

Synchronous Rectification

OR-ing Power Switch

Use Scenario: Secondary-side switching in isolated 48V→12V DC/DC converters for telecom and server PSUs.

IC Role / Device Role / Timing Role: Active replacement of Schottky diode; driven synchronously with primary-side controller timing.

Use Value: 4.0mΩ R_DS(on) cuts conduction loss by >60% vs. 40V Schottky, improving full-load efficiency from 92% to 94.5%.

Use Scenario: Redundant 12V/24V power supply combining in industrial PLC backplanes.

IC Role / Device Role / Timing Role: Unidirectional power path controller; blocks reverse current while conducting forward with minimal drop.

Use Value: V_SD = 1.2V at 66A ensures <80mV forward drop when paralleled with ideal diode controllers, minimizing insertion loss.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STP90NF03L	30V V_DSS, 4.5mΩ R_DS(on), TO-220 package	Limited to ≤24V systems; lacks 60V margin for transient suppression	Select only if operating voltage stays below 20V and board space allows larger TO-220 footprint.
IXTP75N06T	60V V_DSS, 6.2mΩ R_DS(on), TO-220 package, higher Q_g (110nC)	Higher switching loss due to 28% greater gate charge; no specified avalanche energy rating	Acceptable for lower-frequency (<50kHz) linear-regulated supplies where avalanche robustness is secondary.

Compared with STP90NF03L and IXTP75N06T, IRFU7540PBF provides superior 60V system margin, lowest R_DS(on) in its class, and fully validated avalanche performance-making it optimal for high-reliability motor drives and synchronous rectifiers where voltage transients and diode recovery are critical.

Availability

IRFU7540PBF is available at Aetrix Electronics and suitable for brushed motor drives, BLDC inverters, and synchronous rectification circuits requiring stable component supply across industrial and transportation OEM programs.

Supply support for IRFU7540PBF 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, sensor, and automotive ICs, with roots in International Rectifier's power MOSFET legacy.

The StrongIRFET™ product line delivers rugged, high-current discrete MOSFETs engineered for demanding motor control, power conversion, and industrial switching applications where avalanche reliability and thermal performance are non-negotiable.

FAQ

What is the maximum allowable gate-source voltage for IRFU7540PBF?

The absolute maximum V_GS rating is ±20V. Operation beyond this risks irreversible gate oxide breakdown. For reliable 3.3V or 5V logic-level drive, ensure gate driver output clamping and avoid floating gate conditions during power sequencing. Transient overshoot must be limited using RC snubbers or Zener clamps.

Can IRFU7540PBF be used in parallel configurations?

Yes-its positive temperature coefficient of R_DS(on) (see Fig. 6) enables inherent current sharing. Successful paralleling requires matched layout: identical trace lengths, symmetric gate drive paths with individual 2.7Ω resistors, and shared source Kelvin sensing. Thermal coupling between devices must be minimized to prevent thermal runaway.

Does IRFU7540PBF support 6V gate drive in high-current applications?

Yes-R_DS(on) is specified at 5.2mΩ max with V_GS = 6V and I_D = 33A. At full 90A, conduction loss increases ~30% versus 10V drive, but remains viable for space-constrained designs using logic-level gate drivers. Ensure gate driver can source ≥2A peak to charge 86nC gate capacitance rapidly.

Is the I-Pak package thermally compatible with standard TO-220 heatsinks?

No-the I-Pak (TO-251AA) has a smaller outline and non-isolated tab geometry incompatible with TO-220 clip-on heatsinks. It requires dedicated PCB copper pour (≥1"² FR-4) or custom heatsink interfaces with thermal interface material. Mounting torque must not exceed 0.5 N·m to avoid package cracking.

IRFU7540PBF Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: HEXFET®, StrongIRFET™

Package/Case:: TO-251-3 Short Leads, IPAK, TO-251AA

Packaging:: Tube

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 60 V

Current - Continuous Drain (Id) @ 25°C:: 90A (Tc)

Drive Voltage (Max Rds On, Min Rds On):: 6V, 10V

Rds On (Max) @ Id, Vgs:: 4.8mOhm @ 66A, 10V

Vgs(th) (Max) @ Id:: 3.7V @ 100µA

Gate Charge (Qg) (Max) @ Vgs:: 130 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 4360 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 140W (Tc)

Operating Temperature:: -55°C ~ 175°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: IPAK (TO-251AA)

IRFU7540PBF FAQ

1.How can I place an order for IRFU7540PBF through Aetrix?

Please submit a Request for Quotation (RFQ) for IRFU7540PBF on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for IRFU7540PBF reliable?

The price and inventory of IRFU7540PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRFU7540PBF is usually 5 days.

3.What payment methods are accepted for IRFU7540PBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRFU7540PBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRFU7540PBF?

IRFU7540PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRFU7540PBF order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for IRFU7540PBF?

For technical support, including IRFU7540PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRFU7540PBF requirements.

6.How does Aetrix verify that IRFU7540PBF is sourced from the original manufacturer or authorized distributors?

All IRFU7540PBF products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that IRFU7540PBF meets industry standards.

7.What is the process for return or replacement of IRFU7540PBF?

All IRFU7540PBF units undergo pre-shipment inspection (PSI). If there is an issue with IRFU7540PBF, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The IRFU7540PBF part is unused and in its original packaging.

Return procedure for IRFU7540PBF:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-07-29 18650 Battery: Voltage, Capacity, Charging and Pack Design

18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…

2026-07-27 Hall Effect Sensor: Working Principle, Types, Circuits and Applications

Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…

2026-07-20 Product Change Notification (PCN) in Electronic Components: Meaning and Supply Chain Response

Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…

2026-07-19 Blend Door Actuator: Symptoms, Location, Reset and Replacement Guide

A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…

2026-07-17 Raspberry Pi Alternatives: Chip-Level Comparison, Compatibility and Replacement Guide

Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…

2026-07-13 How to Test Dynamic Load Response in Low-Voltage High-Current Buck Converters

Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…

2026-07-08 Output Capacitor Selection for High-Current ASIC Vcore Rails

Engineering guide to output capacitor selection for ASIC Vcore rails, covering bulk capacitors, polymer capacitors, MLCC decoupling, DC bias, ESR, ESL, placement, transient response and substitution ri…

2026-07-07 High-Current ASIC Core Power Supply Design: 12-Phase Buck, PMBus and Dynamic Load Response

Engineering guide to high-current ASIC Vcore rails, covering 12-phase buck architecture, PMBus control, dynamic load testing, output capacitor networks, smart power stage selection, thermal design and …

2026-07-06 Voltage Regulator: Types, Circuits, Testing and Selection Guide

Voltage regulator guide covering linear, LDO, 7805, Zener, adjustable, buck, VRM and alternator regulators, with design checks, testing methods, troubleshooting and datasheet-based selection.

2026-06-30 Amplifiers Explained: Types, Circuits, Gain, Classes and Applications

Amplifier guide covering voltage, current and power amplification, gain, feedback, amplifier classes, audio and RF applications, op-amp circuits, transimpedance amplifiers, datasheet selection and trou…