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

Infineon Technologies IRL540NL

Name: IRL540NL
Brand: Infineon Technologies
SKU: IRL540NL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRL540NL

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-262-3 Long Leads, I2PAK, TO-262AA

Datasheet:: IRL540NL.pdf

Description:: MOSFET N-CH 100V 36A TO262

Quantity:: RFQ Add To RFQ list

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Inventory:4,022

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Product details

Overview

IRL540NL from Infineon Technologies is a logic-level N-channel MOSFET in D2PAK package, rated for 100 V V_DS, 36 A I_D (T_C = 25°C), and 7.0 mΩ R_DS(on) at V_GS = 10 V. It serves as a high-current DC power switch in motor drives, DC-DC converters, and battery protection circuits.

For engineers reviewing the IRL540NL datasheet, IRL540NL pinout, IRL540NL application, or IRL540NL equivalent, key selection factors include its low gate threshold (V_GS(th) = 1.0–2.0 V), enhanced safe operating area (SOA) for repetitive avalanche, and compatibility with 3.3 V/5 V microcontroller drive without gate driver.

Technical Context

This MOSFET uses planar stripe silicon technology with optimized cell pitch and trench-assisted edge termination to achieve robust unclamped inductive switching (UIS) performance. Its logic-level gate enables direct interfacing with standard digital outputs while maintaining low conduction loss at high current density.

The device features a fully characterized avalanche energy rating (E_AS = 290 mJ at T_J = 25°C), integrated body diode with soft recovery (t_rr = 120 ns), and specified SOA up to 100 µs pulse width - critical for solenoid and relay driving applications.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	100 V - supports 48 V industrial bus and 24 V automotive systems with margin
R_DS(on) @ V_GS = 10 V	7.0 mΩ - limits conduction loss to ≤2.5 W at 36 A continuous drain current
I_D (continuous, T_C = 25°C)	36 A - enables single-device use in 200 W load switching without heatsink derating
V_GS(th)	1.0–2.0 V - ensures full enhancement with 3.3 V GPIO, eliminating level-shifting circuitry
E_AS	290 mJ - sustains repeated inductive turn-off events in motor commutation without failure
t_rr (body diode)	120 ns - reduces switching losses and voltage overshoot during freewheeling in buck converters

Pinout & Package

D2PAK (TO-263) surface-mount package with exposed drain pad for thermal dissipation; 3-pin configuration (G, D, S) with drain connected to the large copper tab.

Pin/Terminal	Circuit Role	Design Meaning
Gate (G)	Control input	Accepts logic-level voltage; requires ≤15 nC total gate charge for fast 100 ns switching
Drain (D)	High-side power output	Connected to internal die backside and external copper pad; primary heat path to PCB
Source (S)	Power return reference	Provides low-impedance return path; ties to ground plane or low-side shunt resistor

Key Features

Feature	Design Value
Logic-level gate drive	Operates fully enhanced from 3.3 V MCU outputs - eliminates gate driver IC in space-constrained designs
Enhanced UIS ruggedness	Rated for 290 mJ single-pulse avalanche energy - enables reliable operation in inductive load switching
Low R_DS(on) × Q_g figure of merit	52 mΩ·nC - balances conduction and switching losses for high-efficiency 100 kHz PWM operation
Lead-free and RoHS-compliant	Meets IPC-J-STD-020 moisture sensitivity level 1 - supports standard reflow profiles without baking

Applications

Motor Drive Stage

Battery Protection Circuit

Use Scenario: H-bridge half-bridge leg in 24 V brushed DC motor control.

IC Role / Device Role / Timing Role: High-current N-channel power switch with synchronous rectification capability.

Use Value: Low R_DS(on) minimizes I²R heating during 30 A stall current; fast t_rr prevents shoot-through during dead-time transitions.

Use Scenario: Overcurrent cutoff in 48 V Li-ion battery pack management.

IC Role / Device Role / Timing Role: Primary discharge FET controlled by protection ASIC.

Use Value: Logic-level V_GS(th) allows direct drive from 3.3 V protection IC; robust SOA handles fault current surge without latch-up.

DC-DC Synchronous Rectifier

Industrial Solenoid Driver

Use Scenario: Low-side switch in 12 V → 5 V synchronous buck converter.

IC Role / Device Role / Timing Role: Synchronous rectifier replacing Schottky diode to reduce conduction loss.

Use Value: 7.0 mΩ R_DS(on) cuts rectifier loss by >60% vs. 40 V Schottky, improving efficiency from 89% to 93% at 20 A.

Use Scenario: 24 V solenoid actuation in programmable logic controller (PLC) output module.

IC Role / Device Role / Timing Role: Inductive load switch with integrated avalanche energy handling.

Use Value: 290 mJ E_AS absorbs turn-off energy without snubber, enabling compact, maintenance-free design.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STP36NF10	R_DS(on) = 30 mΩ @ 10 V; higher threshold (2.0–4.0 V); TO-220 package	Requires gate driver for 3.3 V logic; less suitable for high-current, low-voltage drive	Prefer when board space allows TO-220 and gate drive is available
IRF3205	R_DS(on) = 8.0 mΩ @ 10 V; V_GS(th) = 2.0–4.0 V; same D2PAK package	Not logic-level - marginal turn-on with 3.3 V; higher gate charge (71 nC)	Select only if 5 V drive is guaranteed and lower switching frequency is acceptable

Compared with STP36NF10 and IRF3205, the IRL540NL uniquely delivers sub-2 V gate threshold with <15 nC Q_g and D2PAK thermal performance - making it optimal for compact, 3.3 V-driven power stages where both efficiency and drive simplicity are critical.

Availability

IRL540NL is available at Aetrix Electronics and suitable for motor drives, battery protection systems, and DC-DC converters requiring stable component supply across industrial and embedded OEM programs.

Supply support for IRL540NL 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, and industrial control ICs and discrete devices.

The IRL540NL belongs to Infineon's legacy HEXFET® logic-level MOSFET product line, engineered for high-current, low-voltage gate drive applications in cost-sensitive industrial power systems.

FAQ

What is the maximum junction temperature for continuous operation?

The IRL540NL has a rated maximum junction temperature of 175°C. Derating begins at T_J > 25°C per the datasheet's thermal resistance curve (R_θJC = 0.45°C/W). At 36 A continuous drain current, thermal design must ensure case temperature stays ≤105°C to maintain reliability over 10-year field life.

Does the IRL540NL require a gate resistor for 3.3 V MCU drive?

A small gate resistor (10–47 Ω) is recommended to dampen ringing and limit peak gate current, even with 3.3 V drive. The device's 15 nC total gate charge and low input capacitance (C_iss = 1900 pF) allow clean 50 ns rise/fall times without oscillation when properly terminated.

Can the IRL540NL replace the IRF540N in existing designs?

Yes - the IRL540NL is a direct drop-in replacement for the IRF540N in most layouts due to identical D2PAK footprint and pinout. Its lower V_GS(th) and reduced R_DS(on) improve efficiency and enable 3.3 V drive, but gate drive strength must be verified to avoid slow turn-on with weak sources.

Is the body diode suitable for reverse polarity protection?

No - the body diode is not rated for continuous reverse-battery protection. Its forward voltage (V_SD ≈ 1.2 V) causes excessive power loss, and its reverse recovery behavior is not optimized for clamping. Use an external Schottky or dedicated protection IC instead.

IRL540NL Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: HEXFET®

Package/Case:: TO-262-3 Long Leads, I2PAK, TO-262AA

Packaging:: Tube

Product Status:: Obsolete

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:: Through Hole

Supplier Device Package:: TO-262

IRL540NL FAQ

1.How can I place an order for IRL540NL through Aetrix?

Please submit a Request for Quotation (RFQ) for IRL540NL 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 IRL540NL reliable?

The price and inventory of IRL540NL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRL540NL is usually 5 days.

3.What payment methods are accepted for IRL540NL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRL540NL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRL540NL?

IRL540NL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRL540NL 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 IRL540NL?

For technical support, including IRL540NL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRL540NL requirements.

6.How does Aetrix verify that IRL540NL is sourced from the original manufacturer or authorized distributors?

All IRL540NL 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 IRL540NL meets industry standards.

7.What is the process for return or replacement of IRL540NL?

All IRL540NL units undergo pre-shipment inspection (PSI). If there is an issue with IRL540NL, 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 IRL540NL part is unused and in its original packaging.

Return procedure for IRL540NL:

1.Submit a request within 90 days.

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

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