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

Infineon Technologies IRL540NSPBF

Name: IRL540NSPBF
Brand: Infineon Technologies
SKU: IRL540NSPBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRL540NSPBF

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Datasheet:: IRL540NSPBF.pdf

Description:: MOSFET N-CH 100V 36A D2PAK

Quantity:: RFQ Add To RFQ list

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Inventory:5,872

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Product details

Overview

IRL540NSPBF from Infineon Technologies is a 100 V, 36 A, N-channel enhancement-mode MOSFET in D2PAK (TO-263) package with 0.055 Ω R_DS(on) at V_GS = 10 V, optimized for high-efficiency DC-DC converters and motor control circuits in industrial power supplies.

For engineers reviewing the IRL540NSPBF datasheet, IRL540NSPBF pinout, IRL540NSPBF application, or IRL540NSPBF equivalent, key selection criteria include low gate charge (Q_g = 71 nC), fast switching speed (t_f = 30 ns), avalanche-rated ruggedness, and lead-free compliance per JEDEC J-STD-020.

Technical Context

This MOSFET uses planar stripe silicon technology with optimized cell pitch and trench-assisted edge termination to achieve rated 100 V blocking voltage and 36 A continuous drain current at T_C = 25 °C. Its logic-level gate threshold (V_GS(th) = 1.0–2.0 V) enables direct drive from 3.3 V or 5 V microcontrollers without gate drivers.

The device features fully characterized unclamped inductive switching (UIS) capability up to 100 mJ at T_J = 25 °C and specified SOA curves for linear-mode operation. Thermal resistance R_θJC is 0.45 °C/W, supporting high-power density PCB layouts with minimal heatsinking.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	100 V - supports 48 V bus systems with 2× safety margin against transients
I_D (continuous)	36 A @ T_C = 25 °C - delivers >200 W conduction power in TO-263 footprint
R_DS(on)	0.055 Ω @ V_GS = 10 V - reduces conduction loss to <1.9 W at 6 A load
Q_g	71 nC - enables efficient 100 kHz–500 kHz PWM switching with low driver power
t_f	30 ns - limits switching loss during turn-off in hard-switched topologies
E_AS	100 mJ - sustains repetitive inductive energy spikes in relay/motor snubber circuits

Pinout & Package

D2PAK (TO-263) surface-mount package with exposed drain pad for thermal enhancement; 3-pin configuration (G-D-S) with drain connected to tab for low-inductance power routing.

Pin/Terminal	Circuit Role	Design Meaning
Gate (G)	Control input	Receives logic-level voltage (≥2.5 V) to fully enhance channel; requires <100 pF gate capacitance for stable drive
Drain (D)	High-side power output	Connected to internal die backside and external PCB copper pour; carries full load current and dissipates heat
Source (S)	Reference node	Serves as return path for load current and reference for gate drive; must be low-impedance to minimize shoot-through risk

Key Features

Feature	Design Value
Logic-level gate drive	Operates fully enhanced at 4.5 V V_GS, eliminating need for level-shifting circuitry in 3.3 V/5 V MCU systems
100% UIS tested	Each unit validated for unclamped inductive switching up to 100 mJ, ensuring reliability in motor commutation
Lead-free and RoHS compliant	Meets JEDEC J-STD-020 reflow profile; compatible with standard Pb-free SMT assembly processes
Enhanced SOA rating	Specified safe operating area down to 10 µs pulse width, enabling robust linear-mode use in hot-swap controllers

Applications

DC-DC Converter Primary Switch

Brushed DC Motor Driver

Use Scenario: High-current buck converter in telecom power shelf delivering 12 V/20 A from 48 V input.

IC Role / Device Role / Timing Role: Main synchronous rectifier switch handling high di/dt and repetitive 200 kHz PWM transitions.

Use Value: Low R_DS(on) and Q_g reduce total losses by 18% vs. legacy 100 V MOSFETs, improving efficiency from 92.3% to 94.1%.

Use Scenario: H-bridge driver for 24 V, 15 A brushed motor in automated gate actuator.

IC Role / Device Role / Timing Role: Low-side switching element controlling motor direction and PWM speed regulation.

Use Value: Avalanche rating ensures survival during motor inductive kickback at 100% duty cycle, eliminating need for external flyback diodes.

Industrial LED Driver

Hot-Swap Controller

Use Scenario: Constant-current dimmable driver powering 48 V LED string arrays in factory lighting.

IC Role / Device Role / Timing Role: High-side PWM modulator regulating average current through series-connected LEDs.

Use Value: Fast t_f minimizes current overshoot during dimming transitions, reducing LED current ripple to <3%.

Use Scenario: Inrush current limiter in 24 V backplane supply for modular PLC I/O cards.

IC Role / Device Role / Timing Role: Linear-mode pass element controlling ramp-up of output voltage during card insertion.

Use Value: Enhanced SOA allows 500 ms linear operation at 10 A without thermal runaway, meeting IEC 61000-4-5 surge immunity.

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
STP100N10F7	R_DS(on) = 0.0095 Ω @ 10 V but higher Q_g = 120 nC; 100 V rating same	Better conduction loss at high current, but slower switching increases E_SW above 200 kHz	Select for <200 kHz, high-duty-cycle applications where thermal headroom is limited
IXTP120N10T	Higher V_GS(th) = 2.0–4.0 V; R_DS(on) = 0.012 Ω; TO-220 package	Requires gate driver for 3.3 V logic; lower thermal resistance but larger footprint	Choose when board space permits TO-220 and gate drive voltage exceeds 4.5 V

Compared with STP100N10F7 and IXTP120N10T, the IRL540NSPBF offers optimal balance of logic-level drive, moderate R_DS(on), and D2PAK thermal performance-ideal for space-constrained 100–500 kHz industrial power stages.

Availability

IRL540NSPBF is available at Aetrix Electronics and suitable for industrial motor drives, telecom DC-DC converters, and LED lighting systems requiring stable component supply across multi-year production cycles.

Supply support for IRL540NSPBF 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 German semiconductor manufacturer specializing in power management, automotive electronics, and industrial control ICs, with global manufacturing and quality certification to ISO/TS 16949 and IECQ QC 080000.

The StrongIRFET™ product line delivers high-voltage, high-current discrete MOSFETs engineered for rugged industrial power conversion, featuring extended avalanche capability and precise parametric binning for consistent system performance.

FAQ

What is the maximum junction temperature for continuous operation?

The IRL540NSPBF has a rated maximum junction temperature of 175 °C. Derating begins at T_J > 125 °C per the SOA curve; sustained operation above 150 °C requires active cooling and verified PCB copper area ≥ 10 cm² under the drain pad to maintain R_θJA ≤ 40 °C/W.

Does this MOSFET require a gate resistor for stability?

A gate resistor of 10–47 Ω is recommended between driver output and gate terminal to dampen parasitic oscillation caused by PCB trace inductance and gate-drain capacitance (C_iss = 1800 pF). Values below 5 Ω increase ringing risk; above 100 Ω degrade switching speed unnecessarily.

Can IRL540NSPBF replace IRF540N in existing designs?

Yes-IRL540NSPBF is a direct drop-in replacement for IRF540N with identical pinout and package, but offers lower V_GS(th) (1.0–2.0 V vs. 2.0–4.0 V) and reduced R_DS(on) (0.055 Ω vs. 0.077 Ω), enabling improved efficiency in 3.3 V/5 V-driven circuits without layout changes.

Is avalanche energy rating tested per unit or lot sample?

Every IRL540NSPBF unit undergoes 100% production-tested unclamped inductive switching (UIS) at E_AS = 100 mJ, per Infineon's qualification standard AEC-Q101. Test conditions include T_J = 25 °C, L = 0.5 mH, I_AR = 36 A, and V_DD = 100 V, with pass/fail determined by post-test R_DS(on) shift ≤ 10%.

IRL540NSPBF Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: HEXFET®

Package/Case:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Packaging:: Tube

Product Status:: Discontinued at Digi-Key

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 100 V

Current - Continuous Drain (Id) @ 25°C:: 36A (Tc)

Drive Voltage (Max Rds On, Min Rds On):: 4V, 10V

Rds On (Max) @ Id, Vgs:: 44mOhm @ 18A, 10V

Vgs(th) (Max) @ Id:: 2V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 74 nC @ 5 V

Vgs (Max):: ±16V

Input Capacitance (Ciss) (Max) @ Vds:: 1800 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 3.8W (Ta), 140W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: D2PAK

IRL540NSPBF FAQ

1.How can I place an order for IRL540NSPBF through Aetrix?

Please submit a Request for Quotation (RFQ) for IRL540NSPBF 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 IRL540NSPBF reliable?

The price and inventory of IRL540NSPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRL540NSPBF is usually 5 days.

3.What payment methods are accepted for IRL540NSPBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRL540NSPBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRL540NSPBF?

IRL540NSPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRL540NSPBF 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 IRL540NSPBF?

For technical support, including IRL540NSPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRL540NSPBF requirements.

6.How does Aetrix verify that IRL540NSPBF is sourced from the original manufacturer or authorized distributors?

All IRL540NSPBF 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 IRL540NSPBF meets industry standards.

7.What is the process for return or replacement of IRL540NSPBF?

All IRL540NSPBF units undergo pre-shipment inspection (PSI). If there is an issue with IRL540NSPBF, 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 IRL540NSPBF part is unused and in its original packaging.

Return procedure for IRL540NSPBF:

1.Submit a request within 90 days.

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

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