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

Vishay Siliconix IRL540PBF

Name: IRL540PBF
Brand: Vishay Siliconix
SKU: IRL540PBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRL540PBF

Manufacturer:: Vishay Siliconix

Category:: FETs, MOSFETs

Package:: TO-220-3

Datasheet:: IRL540PBF.pdf

Description:: MOSFET N-CH 100V 28A TO220AB

Quantity:: RFQ Add To RFQ list

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Product details

Overview

IRL540PBF from Vishay Siliconix is a logic-level N-channel power MOSFET in TO-220AB package, rated for 100 V V_DS, 28 A continuous drain current at T_C = 25 °C, and 0.055 Ω R_DS(on) at V_GS = 5 V. It supports fast switching, repetitive avalanche operation, and ease of paralleling in DC-DC converters and motor control circuits.

For engineers reviewing the IRL540PBF datasheet, IRL540PBF pinout, IRL540PBF application, or IRL540PBF equivalent, key selection criteria include its logic-level gate drive compatibility (V_GS(th) = 1.0–2.0 V), low on-resistance at 4–5 V drive, avalanche energy rating (E_AS = 270 mJ), and thermal resistance (R_thJC = 2.5 °C/W).

Technical Context

This MOSFET employs third-generation planar V-groove technology optimized for high-current switching with ruggedized avalanche capability. Its gate charge profile (Q_g = 56 nC, Q_gd = 29 nC) enables efficient PWM control in hard-switched topologies while maintaining dV/dt immunity up to 5.0 V/ns.

The device integrates a fast-recovery body diode (t_rr = 140 ns, Q_rr = 23 nC) and exhibits linear SOA behavior up to 100 V and 28 A. Thermal design leverages low junction-to-case resistance (2.5 °C/W) and flat-mounting interface (R_thCS = 0.50 °C/W) for stable operation at 50 W dissipation.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	100 V - Maximum blocking voltage for 12–48 V system bus applications
R_DS(on) @ V_GS = 5 V	0.055 Ω - Enables ≤1.5 W conduction loss at 28 A in TO-220AB package
I_D (continuous, T_C = 25 °C)	28 A - Supports high-current loads without external heatsink in moderate-duty cycles
E_AS	270 mJ - Withstands unclamped inductive energy in relay/motor drive snubberless designs
Q_g	56 nC - Determines gate driver current requirement (≥1.1 A peak for 50 ns rise time)
t_r/t_f	22/20 ns - Limits switching losses to <120 μJ per transition at 100 kHz
V_GS(th)	1.0–2.0 V - Fully enhanced by standard 3.3 V or 5 V microcontroller GPIOs

Pinout & Package

IRL540PBF uses the industry-standard TO-220AB package with isolated tab (drain-connected), offering low thermal resistance (R_thJC = 2.5 °C/W) and mechanical robustness for through-hole mounting.

Pin/Terminal	Circuit Role	Design Meaning
G (Gate)	Control electrode	Accepts logic-level input (0–5 V); requires ≤56 nC total charge for full enhancement
D (Drain)	High-side switch node	Internally connected to metal tab; must be electrically isolated from heatsink unless referenced to same potential
S (Source)	Power return path	Reference for gate drive; carries full load current and body diode reverse recovery charge (Q_rr = 23 nC)

Key Features

Feature	Design Value
Logic-level gate drive	V_GS(th) max 2.0 V ensures full enhancement with 3.3 V MCU outputs, eliminating level-shifter need
Repetitive avalanche rated	Rated for 270 mJ single-pulse and 10 mJ repetitive avalanche, enabling robustness in inductive load switching
Fast body diode	140 ns reverse recovery time and 23 nC Q_rr reduce shoot-through risk in synchronous rectification
Low R_DS(on) at 4 V	0.077 Ω at V_GS = 4 V supports reliable operation with margin under marginal gate drive conditions
Dynamic dV/dt immunity	Rated for 5.0 V/ns peak diode recovery dV/dt, suppressing false turn-on in high-noise environments

Applications

Motor Drive H-Bridge	DC-DC Synchronous Buck
Use Scenario: Half-bridge leg in 24 V brushed DC motor controller with PWM frequency ≤30 kHz. IC Role / Device Role / Timing Role: Low-side switching element handling bidirectional current up to 28 A, leveraging fast body diode for freewheeling. Use Value: 0.055 Ω R_DS(on) limits conduction loss to 43 W at 28 A, while 270 mJ E_AS absorbs inductive kickback during abrupt current interruption.	Use Scenario: High-current synchronous rectifier in 12 V → 3.3 V, 20 A buck converter operating at 500 kHz. IC Role / Device Role / Timing Role: Bottom FET conducting during low-side interval; body diode conducts during dead-time before gate turn-on. Use Value: 140 ns t_rr and 23 nC Q_rr minimize cross-conduction loss and EMI generation during dead-time transitions.
Industrial Power Supply OR-ing	LED Constant-Current Driver
Use Scenario: Reverse-polarity and overvoltage protection in redundant 48 V telecom power distribution. IC Role / Device Role / Timing Role: N-channel high-side switch configured as ideal diode with external gate control circuitry. Use Value: 100 V V_DS rating and 0.055 Ω R_DS(on) enable <0.6 V forward drop at 20 A, reducing heat vs. Schottky solutions.	Use Scenario: Dimmable constant-current switch for high-brightness LED strings (36 V, 1.5 A). IC Role / Device Role / Timing Role: PWM-controlled current sink modulating LED brightness at 1–10 kHz. Use Value: Logic-level gate allows direct drive from microcontroller; 28 A rating provides 18× headroom for surge tolerance during cold-start.

Motor Drive H-Bridge

DC-DC Synchronous Buck

Use Scenario: Half-bridge leg in 24 V brushed DC motor controller with PWM frequency ≤30 kHz.

IC Role / Device Role / Timing Role: Low-side switching element handling bidirectional current up to 28 A, leveraging fast body diode for freewheeling.

Use Value: 0.055 Ω R_DS(on) limits conduction loss to 43 W at 28 A, while 270 mJ E_AS absorbs inductive kickback during abrupt current interruption.

Use Scenario: High-current synchronous rectifier in 12 V → 3.3 V, 20 A buck converter operating at 500 kHz.

IC Role / Device Role / Timing Role: Bottom FET conducting during low-side interval; body diode conducts during dead-time before gate turn-on.

Use Value: 140 ns t_rr and 23 nC Q_rr minimize cross-conduction loss and EMI generation during dead-time transitions.

Industrial Power Supply OR-ing

LED Constant-Current Driver

Use Scenario: Reverse-polarity and overvoltage protection in redundant 48 V telecom power distribution.

IC Role / Device Role / Timing Role: N-channel high-side switch configured as ideal diode with external gate control circuitry.

Use Value: 100 V V_DS rating and 0.055 Ω R_DS(on) enable <0.6 V forward drop at 20 A, reducing heat vs. Schottky solutions.

Use Scenario: Dimmable constant-current switch for high-brightness LED strings (36 V, 1.5 A).

IC Role / Device Role / Timing Role: PWM-controlled current sink modulating LED brightness at 1–10 kHz.

Use Value: Logic-level gate allows direct drive from microcontroller; 28 A rating provides 18× headroom for surge tolerance during cold-start.

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
IRF540NPBF	R_DS(on) = 0.044 Ω @ V_GS = 10 V; V_GS(th) = 2.0–4.0 V; not logic-level	Requires 10 V gate drive; unsuitable for 3.3 V systems without level shift	Select when higher gate voltage is available and lower R_DS(on) is prioritized over drive simplicity
STP55NF06L	R_DS(on) = 0.022 Ω @ V_GS = 5 V; Q_g = 65 nC; TO-220FP package (insulated tab)	Lower on-resistance but higher gate charge; insulated tab simplifies heatsinking	Prefer when thermal isolation is critical and gate drive strength supports 65 nC charge

Compared with IRL540PBF, IRF540NPBF delivers lower conduction loss only with 10 V drive-making it incompatible with 3.3 V logic-while STP55NF06L offers superior R_DS(on) and built-in isolation but demands greater gate drive energy and occupies same footprint.

Availability

IRL540PBF is available at Aetrix Electronics and suitable for motor drives, DC-DC converters, industrial power supplies, and LED drivers requiring stable component supply across production lifecycles.

Supply support for IRL540PBF 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 MOSFETs, diodes, and optoelectronics with emphasis on reliability and ruggedized performance.

The IRL540PBF belongs to Vishay's logic-level power MOSFET product line, engineered for high-efficiency switching in battery-powered, automotive, and industrial systems where low-voltage gate drive and avalanche robustness are essential.

FAQ

What is the maximum continuous drain current rating for IRL540PBF at 100 °C case temperature?

The IRL540PBF supports 17 A continuous drain current at T_C = 100 °C, derived from its 28 A rating at 25 °C and linear derating factor of 0.22 W/°C. This value reflects thermal limits of the TO-220AB package and ensures safe operation under sustained load in enclosed enclosures without forced airflow. The IRL540PBF datasheet confirms this derating curve in Figure 9.

Does IRL540PBF have avalanche capability, and how is it specified?

Yes, IRL540PBF is repetitively avalanche rated with E_AS = 270 mJ (single-pulse) and EAR = 10 mJ (repetitive). These values are measured under standardized unclamped inductive test conditions (V_DD = 50 V, L = 0.5 mH, I_AS = 28 A). The IRL540PBF specification sheet defines avalanche endurance in Absolute Maximum Ratings and details test methodology in Figure 12.

Can IRL540PBF be driven directly from a 3.3 V microcontroller GPIO?

Yes, IRL540PBF can be fully enhanced by a 3.3 V GPIO because its gate threshold voltage V_GS(th) is specified from 1.0 V to 2.0 V, and R_DS(on) remains low (0.077 Ω) even at V_GS = 4 V. This eliminates need for gate drivers in low-frequency switching applications. The IRL540PBF datasheet confirms logic-level compatibility in both Features and Specifications sections.

What is the thermal resistance from junction to case (R_thJC) for IRL540PBF?

The junction-to-case thermal resistance R_thJC for IRL540PBF is 2.5 °C/W, measured from die to the TO-220AB drain tab surface. This value enables accurate heatsink sizing when the tab is mounted to a thermally conductive surface with thermal compound. The IRL540PBF datasheet lists R_thJC in the Thermal Resistance Ratings table on page 2.

Is IRL540PBF RoHS-compliant and halogen-free?

Yes, IRL540PBF is RoHS-compliant and halogen-free, indicated by the "PbF" suffix per Vishay's material categorization standard (document 99912). It meets EU RoHS Directive 2011/65/EU and JEDEC JS709B requirements. The IRL540PBF product marking and ordering information confirm Pb-free and halogen-free status.

IRL540PBF Specifications

Product attributes: Attribute value

Manufacturer:: Vishay Siliconix

Series:: -

Package/Case:: TO-220-3

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:: 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):: 150W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220AB

IRL540PBF FAQ

1.How can I place an order for IRL540PBF through Aetrix?

Please submit a Request for Quotation (RFQ) for IRL540PBF 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 IRL540PBF reliable?

The price and inventory of IRL540PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRL540PBF is usually 5 days.

3.What payment methods are accepted for IRL540PBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRL540PBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRL540PBF?

IRL540PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRL540PBF 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 IRL540PBF?

For technical support, including IRL540PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRL540PBF requirements.

6.How does Aetrix verify that IRL540PBF is sourced from the original manufacturer or authorized distributors?

All IRL540PBF 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 IRL540PBF meets industry standards.

7.What is the process for return or replacement of IRL540PBF?

All IRL540PBF units undergo pre-shipment inspection (PSI). If there is an issue with IRL540PBF, 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 IRL540PBF part is unused and in its original packaging.

Return procedure for IRL540PBF:

1.Submit a request within 90 days.

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

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