IRL540S N-Channel MOSFET 100V 28A D2PAK Equivalent & Substitute Parts

Part Overview

The IRL540S is an N-Channel MOSFET manufactured by Vishay Siliconix, rated for 100V drain-to-source voltage with 28A continuous drain current in a Surface Mount TO-263 (D2PAK) package. This part is classified as Obsolete, making identification of equivalent and substitute components necessary for ongoing design support and procurement continuity. The IRL540S operates across a temperature range of -55°C to 175°C (TJ) and is suitable for applications requiring moderate power dissipation with compact surface mount packaging.

Key Parameters

Parameter	Value	Unit
Drain to Source Voltage (Vdss)	100	V
Continuous Drain Current (Id) @ 25°C	28	A (Tc)
Rds On (Max) @ Id, Vgs	77	mOhm @ 17A, 5V
Gate Charge (Qg) (Max) @ Vgs	64	nC @ 5V
Input Capacitance (Ciss) (Max) @ Vds	2200	pF @ 25V
Power Dissipation (Max)	3.7 / 150	W (Ta) / W (Tc)
Operating Temperature Range	-55 to 175	°C (TJ)
Mounting Type	Surface Mount	—
Package / Case	TO-263-3, D2PAK	—
Vgs (Max)	±10	V

Substitute Part Grouping Explanation

Substitute parts for the IRL540S are selected based on strict electrical and mechanical compatibility within the N-Channel MOSFET category. The primary substitution criteria are:

Critical Parameters for Substitution:

Drain to Source Voltage (Vdss): Must equal or exceed 100V
Continuous Drain Current (Id): Must support 28A or higher at 25°C
Package Type: Must be Surface Mount TO-263 (D2PAK) format
Operating Temperature Range: Must span -55°C to 175°C (TJ)
Gate Drive Voltage: Must be compatible with standard 5V and 10V drive levels

Substitution Categories:

Parametric Equivalent: IRL540SPBF (Vishay Siliconix) — Identical electrical specifications with active product status and RoHS3 compliance. Differs only in packaging format (Tube vs. original specification) and product status transition from Obsolete to Active.

Manufacturer Recommended Alternatives: BUK9675-100A,118 (Nexperia), IRF530NSTRLPBF (Infineon), and IRL540NSTRLPBF (Infineon) — These parts maintain the 100V Vdss rating and D2PAK package but exhibit variations in continuous drain current, on-resistance characteristics, and gate charge specifications. Selection depends on application-specific current and switching requirements.

Parameter Comparison

Parameter	IRL540S (Main)	IRL540SPBF	BUK9675-100A,118	IRF530NSTRLPBF	IRL540NSTRLPBF
Manufacturer	Vishay Siliconix	Vishay Siliconix	Nexperia USA Inc.	Infineon Technologies	Infineon Technologies
Vdss (V)	100	100	100	100	100
Id @ 25°C (A)	28	28	23	17	36
Rds On (Max) (mOhm)	77 @ 17A, 5V	77 @ 17A, 5V	72 @ 10A, 10V	90 @ 9A, 10V	44 @ 18A, 10V
Gate Charge Qg (nC)	64 @ 5V	64 @ 5V	—	37 @ 10V	74 @ 5V
Ciss (pF)	2200 @ 25V	2200 @ 25V	1704 @ 25V	920 @ 25V	1800 @ 25V
Power Dissipation (W)	3.7 (Ta) / 150 (Tc)	3.7 (Ta) / 150 (Tc)	99 (Tc)	3.8 (Ta) / 70 (Tc)	3.8 (Ta) / 140 (Tc)
Operating Temp (°C)	-55 to 175	-55 to 175	-55 to 175	-55 to 175	-55 to 175
Package	TO-263-3, D2PAK	TO-263-3, D2PAK	TO-263-3, D2PAK	TO-263-3, D2PAK	TO-263-3, D2PAK
Product Status	Obsolete	Active	Active	Active	Active
RoHS Status	Non-compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant

Engineering Selection Recommendations

IRL540SPBF (Vishay Siliconix) — Direct parametric equivalent with identical electrical specifications. Recommended as the primary substitute for applications currently using IRL540S. Offers Active product status, RoHS3 compliance, and full compatibility with existing designs. Packaging format is Tube rather than the original specification, but electrical performance is unchanged.

IRL540NSTRLPBF (Infineon Technologies) — Suitable for applications requiring higher continuous drain current (36A vs. 28A). Offers superior on-resistance performance (44 mOhm @ 18A, 10V) and Active product status with RoHS3 compliance. Recommended when design margins permit higher current capability or when lower conduction losses are beneficial. Gate charge is slightly elevated (74 nC @ 5V).

BUK9675-100A,118 (Nexperia USA Inc.) — Automotive-grade alternative with AEC-Q101 qualification. Suitable for applications with reduced current requirements (23A vs. 28A). Features lower input capacitance (1704 pF) and improved on-resistance at higher gate drive voltages (72 mOhm @ 10A, 10V). Recommended for automotive applications or designs with 10V gate drive capability. Available in high inventory (14,995 pcs).

IRF530NSTRLPBF (Infineon Technologies) — Lower current alternative (17A vs. 28A) with reduced gate charge (37 nC @ 10V) and significantly lower input capacitance (920 pF). Suitable for applications with lower current demands or where faster switching is required. Not recommended as a direct substitute for 28A continuous current applications.

Frequently Asked Questions (FAQ)

Q: Can IRL540SPBF be used as a direct replacement for IRL540S?

A: Yes. IRL540SPBF is a parametric equivalent with identical electrical specifications: 100V Vdss, 28A continuous drain current, 77 mOhm on-resistance, and 64 nC gate charge. The primary difference is product status (Active vs. Obsolete) and packaging format (Tube). Electrical performance and pin configuration are identical.

Q: What is the key difference between IRL540NSTRLPBF and the original IRL540S?

A: IRL540NSTRLPBF offers higher continuous drain current (36A vs. 28A) and superior on-resistance (44 mOhm @ 18A, 10V vs. 77 mOhm @ 17A, 5V). Both maintain 100V Vdss and D2PAK packaging. The higher current rating provides additional design margin but requires verification of gate drive circuit compatibility with 10V drive levels.

Q: Is BUK9675-100A,118 suitable for 28A applications?

A: BUK9675-100A,118 is rated for 23A continuous drain current, which is below the 28A requirement of the IRL540S. This part is not recommended as a direct substitute for applications requiring full 28A current. It is suitable only for applications with reduced current demands or as a secondary option where current derating is acceptable.

Q: Are all substitute parts available in the same D2PAK package?

A: Yes. All substitute parts listed are Surface Mount TO-263 (D2PAK) format with identical pin configuration and mechanical compatibility. Printed circuit board layouts and thermal management designs require no modification.

Q: What is the significance of RoHS3 compliance in the substitute parts?

A: All substitute parts are RoHS3 compliant, whereas the original IRL540S is RoHS non-compliant. RoHS3 compliance indicates conformance to current environmental and material restriction standards. For new designs or procurement requiring regulatory compliance, RoHS3-compliant substitutes are necessary.

Q: Can IRF530NSTRLPBF be used in high-current applications?

A: IRF530NSTRLPBF is rated for 17A continuous drain current, which is significantly lower than the 28A rating of IRL540S. This part is not suitable for applications requiring 28A continuous current. It is appropriate only for lower-current applications or as a substitute in designs where current has been reduced.

Q: What are the gate drive voltage requirements for each substitute?

A: IRL540SPBF operates with 4V and 5V drive voltages (identical to IRL540S). IRL540NSTRLPBF and BUK9675-100A,118 operate with 10V drive capability. IRF530NSTRLPBF operates with 10V drive. Existing gate drive circuits designed for 5V operation are compatible with IRL540SPBF without modification. Higher voltage drive circuits may be required for other substitutes.

Q: Are there inventory considerations when selecting a substitute?

A: IRL540SPBF has 1,185 pcs in stock. BUK9675-100A,118 has the highest inventory at 14,995 pcs. IRF530NSTRLPBF has 67,060 pcs available. IRL540NSTRLPBF has 16,532 pcs in stock. Inventory levels should be considered for long-term supply chain planning, particularly for obsolete part replacement strategies.

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