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

Vishay Siliconix IRF540STRL

Name: IRF540STRL
Brand: Vishay Siliconix
SKU: IRF540STRL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRF540STRL

Manufacturer:: Vishay Siliconix

Category:: FETs, MOSFETs

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

Datasheet:: IRF540STRL.pdf

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

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Product details

Overview

IRF540STRL 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 25 °C, 0.077 Ω R_DS(on) at V_GS = 10 V, and 175 °C maximum junction temperature. It delivers fast switching, repetitive avalanche capability, and ease of paralleling in high-current DC-DC converters and motor drive half-bridges.

For engineers reviewing the IRF540STRL datasheet, IRF540STRL pinout, IRF540STRL application, or IRF540STRL equivalent, key selection criteria include its 72 nC total gate charge, 1.0 °C/W junction-to-case thermal resistance, dynamic dV/dt rating of 5.5 V/ns, and suitability for industrial power supplies requiring ruggedized surface-mount switching devices.

Technical Context

This third-generation Power MOSFET employs planar V-groove silicon technology optimized for low conduction loss and robust unclamped inductive switching. Its design integrates a fast-recovery body diode with 180–360 ns reverse recovery time and supports linear-mode operation up to 175 °C junction temperature.

The device features a single N-channel configuration with gate threshold voltage between 2.0 V and 4.0 V, specified transconductance of 8.7 S, and dynamic capacitances (C_iss = 1700 pF, C_oss = 560 pF, C_rss = 120 pF) enabling predictable switching behavior in hard-switched topologies.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	100 V - Maximum blocking voltage for 48 V bus applications with 2× safety margin
R_DS(on)	0.077 Ω @ V_GS = 10 V - Enables ≤2.2 W conduction loss at 17 A DC current
I_D (continuous)	28 A @ T_C = 25 °C - Supports high-current PCB-mount designs with heatsink interface
Q_g	72 nC - Determines gate driver power requirement and switching speed trade-off
T_J range	−55 to +175 °C - Qualified for under-hood automotive and industrial ambient environments
E_AS	230 mJ - Specifies single-pulse avalanche energy handling without failure
R_thJC	1.0 °C/W - Enables direct thermal path to heatsink for high-power dissipation

Pinout & Package

D2PAK (TO-263) surface-mount package with exposed drain tab for thermal and electrical connection; 3-pin configuration (G, D, S) with drain tab electrically connected to pin 2 (Drain) and thermally coupled to PCB copper area.

Pin/Terminal	Circuit Role	Design Meaning
G (Gate)	Control input	Receives 10 V logic-level signal to fully enhance channel; requires <11 nC charge for turn-on
D (Drain)	High-side power output	Exposed metal tab - must be soldered to large copper pour for thermal management and current return
S (Source)	Power reference / return	Common node for gate drive reference and load current return; connects to ground or low-side switch

Key Features

Feature	Design Value
Repetitive avalanche rated	15 mJ per pulse - enables reliable operation in inductive load switching without external snubbers
Dynamic dV/dt rating	5.5 V/ns - suppresses false turn-on during high dv/dt transients in bridge configurations
Fast switching	11 ns turn-on delay + 44 ns rise time - reduces switching losses in 100 kHz–500 kHz SMPS designs
RoHS and halogen-free	Compliant to IEC 61249-2-21 - meets environmental requirements for industrial and consumer end equipment
PCB-mount power dissipation	3.7 W @ T_A = 25 °C - achievable with 1"² FR-4 board without external heatsink

Applications

Motor Drive Half-Bridge	DC-DC Synchronous Buck Converter
Use Scenario: High-current brushed DC motor control in industrial actuators with 24–48 V supply. IC Role / Device Role / Timing Role: Low-side switching element in half-bridge topology; handles bidirectional current during PWM commutation. Use Value: 0.077 Ω R_DS(on) minimizes I²R losses at 20 A peak, while 175 °C rating sustains operation during stall conditions.	Use Scenario: 12 V input to 3.3 V/15 A output buck converter for FPGA power delivery. IC Role / Device Role / Timing Role: Synchronous rectifier replacing Schottky diode to reduce conduction loss and improve efficiency. Use Value: Body diode V_SD = 2.5 V at 28 A enables low-loss freewheeling; Q_rr = 1.3–2.8 μC limits reverse recovery loss.
Uninterruptible Power Supply (UPS) Inverter Stage	LED Driver Constant-Current Switch
Use Scenario: 100 V DC bus switching in offline UPS inverters delivering 500 VA output. IC Role / Device Role / Timing Role: High-side switch in full-bridge inverter leg; operates with bootstrap gate drive. Use Value: 100 V V_DS withstands reflected spikes; E_AS = 230 mJ absorbs inductive kickback during fault events.	Use Scenario: High-brightness LED string switching in architectural lighting with 36 V bus. IC Role / Device Role / Timing Role: Primary current-control switch in constant-current buck regulator. Use Value: 28 A continuous rating supports parallel LED strings; 72 nC Q_g allows clean PWM dimming at 1–20 kHz.

Motor Drive Half-Bridge

DC-DC Synchronous Buck Converter

Use Scenario: High-current brushed DC motor control in industrial actuators with 24–48 V supply.

IC Role / Device Role / Timing Role: Low-side switching element in half-bridge topology; handles bidirectional current during PWM commutation.

Use Value: 0.077 Ω R_DS(on) minimizes I²R losses at 20 A peak, while 175 °C rating sustains operation during stall conditions.

Use Scenario: 12 V input to 3.3 V/15 A output buck converter for FPGA power delivery.

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

Use Value: Body diode V_SD = 2.5 V at 28 A enables low-loss freewheeling; Q_rr = 1.3–2.8 μC limits reverse recovery loss.

Uninterruptible Power Supply (UPS) Inverter Stage

LED Driver Constant-Current Switch

Use Scenario: 100 V DC bus switching in offline UPS inverters delivering 500 VA output.

IC Role / Device Role / Timing Role: High-side switch in full-bridge inverter leg; operates with bootstrap gate drive.

Use Value: 100 V V_DS withstands reflected spikes; E_AS = 230 mJ absorbs inductive kickback during fault events.

Use Scenario: High-brightness LED string switching in architectural lighting with 36 V bus.

IC Role / Device Role / Timing Role: Primary current-control switch in constant-current buck regulator.

Use Value: 28 A continuous rating supports parallel LED strings; 72 nC Q_g allows clean PWM dimming at 1–20 kHz.

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	R_DS(on) = 0.044 Ω @ 10 V (lower), but TO-220 package - no surface-mount compatibility	Requires through-hole PCB layout and mechanical heatsinking	Select when lower on-resistance is critical and board assembly supports through-hole components
STP100NF06L	Logic-level gate (V_GS(th) = 1–2.5 V); R_DS(on) = 0.0075 Ω @ 5 V - incompatible gate drive voltage requirement	Designed for 3.3 V/5 V microcontroller direct drive; not compatible with 10 V gate drivers	Select only if system uses logic-level gate drive and can accommodate different thermal footprint

Compared with IRF540STRL, IRF540N offers lower conduction loss but mandates through-hole assembly and higher thermal resistance, while STP100NF06L enables direct MCU drive but requires redesign of gate bias network and layout due to differing pinout and package dimensions.

Availability

IRF540STRL is available at Aetrix Electronics and suitable for industrial motor drives, uninterruptible power supplies, and high-current DC-DC converters requiring stable component supply and long-term manufacturing continuity.

Supply support for IRF540STRL 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 and passive components, specializing in high-reliability power management solutions for industrial, automotive, and computing markets.

The IRF540STRL belongs to Vishay's third-generation surface-mount Power MOSFET product line, engineered for high-current switching applications demanding ruggedness, low R_DS(on), and repeatable avalanche performance in compact D2PAK packages.

FAQ

What is the maximum junction temperature specification for the IRF540STRL?

The IRF540STRL has a maximum operating junction temperature of +175 °C, verified per absolute maximum ratings in Vishay document 91022. This rating enables reliable operation in high-ambient industrial environments and allows extended safe operation during transient overloads. The device maintains parameter stability across this full range, with R_DS(on) normalized to 3.0× at 175 °C versus 25 °C. Thermal design must ensure junction temperature remains below this limit under worst-case power dissipation.

Does the IRF540STRL support repetitive avalanche operation, and what is its rated energy?

Yes, the IRF540STRL is explicitly rated for repetitive avalanche operation with an energy limit of 15 mJ per pulse, as confirmed in the Absolute Maximum Ratings table of Vishay document 91022. This capability is validated under conditions of I_AR = 28 A, dI/dt ≤ 170 A/μs, and T_J ≤ 175 °C. Designers may use this rating to eliminate external clamping circuits in inductive load switching, provided pulse width and duty cycle remain within thermal limits defined in Figure 11.

What is the gate threshold voltage range for the IRF540STRL, and how does it affect drive requirements?

The IRF540STRL has a gate threshold voltage (V_GS(th)) range of 2.0 V to 4.0 V at I_D = 250 μA, per the Specifications table in Vishay document 91022. This standard-level threshold requires a minimum 10 V gate drive to achieve full enhancement and the specified 0.077 Ω R_DS(on). Driving below 8 V results in significantly higher on-resistance and increased conduction loss. Gate drive circuits must therefore supply ≥10 V with sufficient current to deliver 72 nC total charge within required switching times.

How does the IRF540STRL's body diode performance compare to discrete Schottky diodes in synchronous rectification?

The IRF540STRL's integrated body diode has a forward voltage (V_SD) of ≤2.5 V at 28 A and 25 °C, with reverse recovery charge (Q_rr) of 1.3–2.8 μC and recovery time (t_rr) of 180–360 ns. While higher V_F than Schottky diodes, its Q_rr is well-controlled and enables efficient synchronous rectification in buck converters up to 500 kHz. Unlike discrete diodes, it eliminates component count and layout parasitics, though thermal coupling to the MOSFET die requires careful PCB copper allocation.

Is the IRF540STRL RoHS-compliant and halogen-free, and which standard does it meet?

Yes, the IRF540STRL is both RoHS-compliant per Directive 2002/95/EC and halogen-free according to IEC 61249-2-21, as stated in the Features section of Vishay document 91022. The "PbFa" suffix in the ordering code IRF540STRLPbFa confirms lead-free and halogen-free construction. These compliance attributes are verified through material declarations and testing, supporting use in environmentally regulated industrial and consumer products without exemption requests.

IRF540STRL 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):: 10V

Rds On (Max) @ Id, Vgs:: 77mOhm @ 17A, 10V

Vgs(th) (Max) @ Id:: 4V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 72 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 1700 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)

IRF540STRL FAQ

1.How can I place an order for IRF540STRL through Aetrix?

Please submit a Request for Quotation (RFQ) for IRF540STRL 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 IRF540STRL reliable?

The price and inventory of IRF540STRL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRF540STRL is usually 5 days.

3.What payment methods are accepted for IRF540STRL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRF540STRL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRF540STRL?

IRF540STRL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRF540STRL 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 IRF540STRL?

For technical support, including IRF540STRL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRF540STRL requirements.

6.How does Aetrix verify that IRF540STRL is sourced from the original manufacturer or authorized distributors?

All IRF540STRL 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 IRF540STRL meets industry standards.

7.What is the process for return or replacement of IRF540STRL?

All IRF540STRL units undergo pre-shipment inspection (PSI). If there is an issue with IRF540STRL, 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 IRF540STRL part is unused and in its original packaging.

Return procedure for IRF540STRL:

1.Submit a request within 90 days.

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

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