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

Vishay Siliconix IRL540STRL

Name: IRL540STRL
Brand: Vishay Siliconix
SKU: IRL540STRL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRL540STRL

Manufacturer:: Vishay Siliconix

Category:: FETs, MOSFETs

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

Datasheet:: IRL540STRL.pdf

Description:: MOSFET N-CH 100V 28A D2PAK

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Product details

Overview

IRL540STRL from Vishay Siliconix is a logic-level N-channel power MOSFET in D2PAK (TO-263) surface-mount package, rated for 100 V V_DS, 28 A continuous drain current at T_C = 25 °C, and 0.077 Ω R_DS(on) at V_GS = 5 V. It supports repetitive avalanche operation, features dynamic dv/dt rating, and operates up to 175 °C junction temperature - deployed in DC-DC converters, motor drivers, and high-current switching power supplies.

For engineers reviewing the IRL540STRL datasheet, IRL540STRL pinout, IRL540STRL application, or IRL540STRL equivalent, key selection criteria include its logic-level gate drive compatibility with 4–5 V microcontrollers, low on-resistance at low gate voltage, robust avalanche energy rating (440 mJ single-pulse), thermal performance on PCB mount (R_thJA = 40 °C/W), and D2PAK package suitability for high-power surface-mount designs requiring >3 W dissipation.

Technical Context

This MOSFET employs third-generation silicon process optimized for fast switching and ruggedized avalanche capability. Its gate threshold voltage (1.0–2.0 V) enables direct drive from 3.3 V/5 V logic, while low Q_g (64 nC) and Q_gd (27 nC) support efficient high-frequency PWM operation in synchronous buck stages.

The device integrates a body diode with 200–260 ns reverse recovery time and 1.7–2.9 μC Q_rr, enabling use in freewheeling and flyback topologies without external Schottky supplementation in moderate-speed applications.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	100 V - supports input rails up to 48 V nominal systems with margin for transients
R_DS(on) @ V_GS = 5 V	0.077 Ω - delivers ≤ 22 W conduction loss at 17 A, enabling compact thermal design
I_D Continuous @ T_C = 25 °C	28 A - sustains high-current loads in motor H-bridge or battery protection circuits
E_AS (Single Pulse)	440 mJ - withstands unclamped inductive switching events in relay/snubberless designs
Q_g	64 nC - determines gate driver power requirement; compatible with standard 1-A peak drivers
T_J Range	−55 to +175 °C - qualified for under-hood automotive and industrial ambient environments
R_thJC	1.0 °C/W - enables high-power dissipation when mounted to heatsink via exposed drain pad

Pinout & Package

D2PAK (TO-263) surface-mount package with isolated gate, drain-connected thermal pad, and 3-terminal configuration. Exposed drain pad provides low-inductance, high-current path and primary thermal conduction route to PCB copper.

Pin/Terminal	Circuit Role	Design Meaning
G	Gate	Logic-level control input; requires <2.0 V V_GS(th) to initiate conduction; sensitive to ESD
D	Drain	Main high-side or low-side power terminal; electrically connected to exposed thermal pad; carries full load current
S	Source	Reference node for gate drive; tied to ground or low-side switch node; source inductance (7.5 nH) affects switching ringing

Key Features

Feature	Design Value
Logic-level gate drive	Operates fully enhanced at V_GS = 4 V - eliminates need for gate boosters in 3.3 V/5 V MCU-controlled systems
Repetitive avalanche rated	Rated for 15 mJ repetitive avalanche energy - supports reliable operation in inductive load switching without snubbers
Dynamic dv/dt immunity	5.5 V/ns peak diode recovery dv/dt - suppresses false turn-on during high-speed commutation
High-temperature operation	175 °C maximum junction temperature - enables deployment in sealed enclosures or high-ambient industrial settings
RoHS-compliant, Pb-free	IRL540STRLPbF variant meets EU RoHS Directive 2011/65/EU and halogen-free requirements per Vishay Doc. 99912

Applications

Motor Control	DC-DC Conversion
Use Scenario: Half-bridge or H-bridge driving of brushed DC motors in robotics and power tools. IC Role / Device Role / Timing Role: Low-side or high-side switching element handling 10–25 A peak currents with PWM frequencies up to 100 kHz. Use Value: Low R_DS(on) minimizes I²R losses during extended duty cycles; logic-level gate allows direct STM32/NXP S32K drive without level shifters.	Use Scenario: Synchronous rectifier or high-side switch in 12 V–48 V input buck converters for telecom and server PSUs. IC Role / Device Role / Timing Role: Main power switch managing 20+ A output current with <100 ns switching transitions. Use Value: 64 nC Q_g and 27 nC Q_gd reduce gate drive losses; 1.0 °C/W R_thJC enables heatsink-less operation at 15 W dissipation on 2 oz copper.
Power Supply Protection	Industrial Lighting
Use Scenario: Electronic circuit breaker or hot-swap controller in 24 V industrial PLC backplanes. IC Role / Device Role / Timing Role: Current-limiting switch activated by overcurrent detection circuitry; handles surge currents up to 110 A pulsed. Use Value: 440 mJ single-pulse avalanche energy absorbs fault energy without failure; 28 A continuous rating supports 20 A sustained load with margin.	Use Scenario: Dimmable LED driver stage controlling 10–30 A constant-current strings in high-bay lighting fixtures. IC Role / Device Role / Timing Role: PWM-controlled high-side switch modulating current through LED arrays at 1–20 kHz. Use Value: Body diode t_rr ≤ 260 ns prevents cross-conduction in complementary drive; 175 °C rating accommodates enclosed fixture temperatures.

Motor Control

DC-DC Conversion

Use Scenario: Half-bridge or H-bridge driving of brushed DC motors in robotics and power tools.

IC Role / Device Role / Timing Role: Low-side or high-side switching element handling 10–25 A peak currents with PWM frequencies up to 100 kHz.

Use Value: Low R_DS(on) minimizes I²R losses during extended duty cycles; logic-level gate allows direct STM32/NXP S32K drive without level shifters.

Use Scenario: Synchronous rectifier or high-side switch in 12 V–48 V input buck converters for telecom and server PSUs.

IC Role / Device Role / Timing Role: Main power switch managing 20+ A output current with <100 ns switching transitions.

Use Value: 64 nC Q_g and 27 nC Q_gd reduce gate drive losses; 1.0 °C/W R_thJC enables heatsink-less operation at 15 W dissipation on 2 oz copper.

Power Supply Protection

Industrial Lighting

Use Scenario: Electronic circuit breaker or hot-swap controller in 24 V industrial PLC backplanes.

IC Role / Device Role / Timing Role: Current-limiting switch activated by overcurrent detection circuitry; handles surge currents up to 110 A pulsed.

Use Value: 440 mJ single-pulse avalanche energy absorbs fault energy without failure; 28 A continuous rating supports 20 A sustained load with margin.

Use Scenario: Dimmable LED driver stage controlling 10–30 A constant-current strings in high-bay lighting fixtures.

IC Role / Device Role / Timing Role: PWM-controlled high-side switch modulating current through LED arrays at 1–20 kHz.

Use Value: Body diode t_rr ≤ 260 ns prevents cross-conduction in complementary drive; 175 °C rating accommodates enclosed fixture temperatures.

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
IRF540N	Higher V_GS(th) (2–4 V), higher R_DS(on) (0.044 Ω @ 10 V only), not logic-level	Requires 10 V gate drive; unsuitable for 3.3 V MCU direct drive	Select IRL540STRL when gate voltage is limited to ≤5 V and low on-resistance at low V_GS is critical
STP100N10F7	Lower R_DS(on) (0.0085 Ω @ 10 V), higher Q_g (120 nC), same 100 V rating	Better conduction loss but demands stronger gate driver; not logic-level optimized	Prefer IRL540STRL for cost-sensitive, logic-compatible designs where gate drive strength is constrained

Compared with IRF540N and STP100N10F7, the IRL540STRL uniquely balances logic-level operability, rugged avalanche performance, and D2PAK thermal capability - making it optimal for space-constrained, low-voltage-gate, high-reliability industrial switching where gate drive simplicity and transient robustness are prioritized over ultra-low R_DS(on).

Availability

IRL540STRL is available at Aetrix Electronics and suitable for motor control, DC-DC conversion, and power supply protection applications requiring stable component supply, long-term industrial lifecycle support, and RoHS-compliant manufacturing.

Supply support for IRL540STRL 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, reliability, and thermal performance.

The IRL540STRL belongs to Vishay's logic-level power MOSFET product line engineered for high-current, surface-mount switching in industrial automation, power tools, and embedded power systems where low gate drive voltage and avalanche tolerance are essential.

FAQ

What is the maximum continuous drain current for IRL540STRL at 100 °C case temperature?

The IRL540STRL supports 20 A continuous drain current at T_C = 100 °C, per its Absolute Maximum Ratings table. This derating reflects thermal limits of the D2PAK package and internal silicon; actual usable current depends on PCB layout, copper area, and ambient conditions. The IRL540STRL maintains safe operation up to 175 °C junction temperature, allowing flexibility in thermal design when heatsinking is constrained.

Does IRL540STRL have a built-in body diode, and what are its key parameters?

Yes, the IRL540STRL integrates a parasitic body diode inherent to its vertical N-channel MOSFET structure. Key parameters include 28 A continuous forward current (I_S), 110 A pulsed forward current (I_SM), 2.5 V forward voltage (V_SD) at 28 A and 25 °C, and 200–260 ns reverse recovery time (t_rr). These values make the IRL540STRL suitable for freewheeling in non-synchronous buck or flyback converters where moderate switching speeds are used.

Is IRL540STRL pin-compatible with other D2PAK-packaged MOSFETs like IRF540N?

The IRL540STRL uses the standard 3-pin D2PAK (TO-263AB) footprint with G-D-S pinout, matching mechanical and solder-pad compatibility with IRF540N and most industry-standard D2PAK MOSFETs. However, electrical behavior differs significantly: the IRL540STRL is logic-level (V_GS(th) = 1.0–2.0 V), while IRF540N requires ≥10 V for full enhancement. Thus, while PCB layout is interchangeable, gate drive circuitry must be verified for compatibility with the IRL540STRL.

What does "repetitive avalanche rated" mean for IRL540STRL, and how is it tested?

"Repetitive avalanche rated" means the IRL540STRL is characterized and guaranteed to survive repeated unclamped inductive switching events without degradation, provided pulse width and duty cycle remain within limits (pulse width ≤ 300 μs, duty cycle ≤ 2 %). It is tested per JEDEC standards using V_DD = 25 V, L = 841 μH, R_g = 25 Ω, and I_AS = 28 A. The IRL540STRL delivers 15 mJ repetitive avalanche energy (E_AR) - a key reliability metric for motor drive and solenoid control applications.

How does the thermal resistance of IRL540STRL compare between junction-to-case and junction-to-ambient mounting?

The IRL540STRL has R_thJC = 1.0 °C/W (junction-to-case) and R_thJA = 40 °C/W when mounted on a 1" square FR-4 PCB - demonstrating that effective heat transfer relies heavily on thermal connection to the exposed drain pad. Without heatsinking, the 40 °C/W value limits power dissipation to ~3.7 W at 25 °C ambient. With proper thermal vias and copper pour, the 1.0 °C/W R_thJC enables >100 W dissipation when coupled to an external heatsink - a critical distinction reflected in the IRL540STRL's dual thermal rating specification.

IRL540STRL Specifications

Product attributes: Attribute value

Manufacturer:: Vishay Siliconix

Series:: -

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

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 100 V

Current - Continuous Drain (Id) @ 25°C:: 28A (Tc)

Drive Voltage (Max Rds On, Min Rds On):: 4V, 5V

Rds On (Max) @ Id, Vgs:: 77mOhm @ 17A, 5V

Vgs(th) (Max) @ Id:: 2V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 64 nC @ 5 V

Vgs (Max):: ±10V

Input Capacitance (Ciss) (Max) @ Vds:: 2200 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 3.7W (Ta), 150W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TO-263 (D2PAK)

IRL540STRL FAQ

1.How can I place an order for IRL540STRL through Aetrix?

Please submit a Request for Quotation (RFQ) for IRL540STRL 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 IRL540STRL reliable?

The price and inventory of IRL540STRL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRL540STRL is usually 5 days.

3.What payment methods are accepted for IRL540STRL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRL540STRL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRL540STRL?

IRL540STRL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRL540STRL 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 IRL540STRL?

For technical support, including IRL540STRL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRL540STRL requirements.

6.How does Aetrix verify that IRL540STRL is sourced from the original manufacturer or authorized distributors?

All IRL540STRL 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 IRL540STRL meets industry standards.

7.What is the process for return or replacement of IRL540STRL?

All IRL540STRL units undergo pre-shipment inspection (PSI). If there is an issue with IRL540STRL, 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 IRL540STRL part is unused and in its original packaging.

Return procedure for IRL540STRL:

1.Submit a request within 90 days.

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

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