IRL540NSTRL MOSFET N-Channel 100V 36A Equivalent & Substitute Parts

Part Overview

The IRL540NSTRL is an N-Channel MOSFET manufactured by Infineon Technologies, rated for 100V drain-to-source voltage with 36A continuous drain current in a surface mount D2PAK package. This device is classified as obsolete, which necessitates identification of equivalent substitute components for ongoing design support and procurement requirements. The part operates as a switching element in power conversion and motor control applications where high current handling and low on-resistance characteristics are required.

Substiute Parts

IRL540NSTRL

Infineon TechnologiesIn Stock: 801IRL540NSTRL Datasheet

Current PartRFQ

IRL540NSTRLPBF

Infineon TechnologiesIn Stock: 16595IRL540NSTRLPBF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IRL540NSTRL is determined by electrical and mechanical parameter equivalence within the N-Channel MOSFET category. The critical parameters that define substitutability are:

Electrical Parameters:

• Drain-to-Source Voltage (Vdss): 100 V
• Continuous Drain Current (Id): 36 A at 25°C
• On-Resistance (Rds On): 44 mOhm maximum at specified gate voltage
• Gate Threshold Voltage (Vgs(th)): 2 V maximum
• Gate Charge (Qg): 74 nC maximum
• Input Capacitance (Ciss): 1800 pF maximum

Mechanical Parameters:

• Mounting Type: Surface Mount
• Package: D2PAK (TO-263-3)
• Moisture Sensitivity Level: 1 (Unlimited)

Substitute parts must maintain identical or superior electrical performance across all specified parameters while maintaining the same physical package footprint and mounting characteristics. The IRL540NSTRLPBF meets these criteria as a direct functional equivalent with enhanced product status and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The IRL540NSTRLPBF is the direct equivalent substitute for the obsolete IRL540NSTRL. Selection of the IRL540NSTRLPBF is supported by the following engineering factors:

Product Status: The IRL540NSTRLPBF maintains Active product status, ensuring continued availability and manufacturer support. The original IRL540NSTRL is classified as Obsolete, creating supply chain risk for new designs and production continuity.

Regulatory Compliance: The IRL540NSTRLPBF is ROHS3 Compliant, meeting current environmental and hazardous substance restrictions. The original part is RoHS non-compliant, which may present regulatory barriers in certain markets and applications.

Electrical Equivalence: All critical electrical parameters are identical between the two parts, including voltage rating, current capacity, on-resistance, threshold voltage, gate charge, and input capacitance. This ensures direct functional compatibility in existing circuit designs without modification.

Mechanical Compatibility: Both parts utilize identical D2PAK surface mount packaging with the same footprint, pin configuration, and moisture sensitivity rating. PCB layouts and assembly processes require no modification.

Packaging and Availability: The IRL540NSTRLPBF is supplied in Cut Tape and Digi-Reel packaging formats with significantly higher inventory availability (16,532 pieces in stock versus 755 pieces for the obsolete variant), supporting both prototype and production volume requirements.

Frequently Asked Questions (FAQ)

Q: Can the IRL540NSTRLPBF be used as a direct replacement for the IRL540NSTRL in existing designs?

A: Yes. The IRL540NSTRLPBF is electrically and mechanically identical to the IRL540NSTRL across all specified parameters. No circuit modifications, PCB layout changes, or design alterations are required. The parts are pin-compatible and functionally equivalent.

Q: What is the primary reason for substituting the IRL540NSTRL?

A: The IRL540NSTRL is classified as Obsolete, which creates supply chain discontinuity and limits long-term availability. The IRL540NSTRLPBF maintains Active product status with robust inventory levels, ensuring reliable procurement for both new designs and ongoing production.

Q: Are there compliance differences between these parts?

A: Yes. The IRL540NSTRLPBF is ROHS3 Compliant, while the original IRL540NSTRL is RoHS non-compliant. For applications subject to RoHS regulations or customer requirements, the IRL540NSTRLPBF is the required selection.

Q: Do the parts have identical electrical performance?

A: Yes. Both parts share identical ratings for drain-to-source voltage (100V), continuous drain current (36A), on-resistance (44 mOhm), gate threshold voltage (2V), gate charge (74 nC), and input capacitance (1800 pF). Electrical performance in circuit operation is equivalent.

Q: Are the packages identical?

A: Yes. Both parts use the D2PAK (TO-263-3) surface mount package with identical footprint, pin configuration, and lead spacing. PCB assembly and soldering processes are unchanged.

Q: What is the moisture sensitivity rating for both parts?

A: Both parts have a Moisture Sensitivity Level (MSL) of 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard handling and storage procedures apply without special desiccant or humidity control requirements.

Q: Is the IRL540NSTRLPBF available in different packaging formats?

A: Yes. The IRL540NSTRLPBF is supplied in Cut Tape (CT) and Digi-Reel packaging formats, supporting both small-quantity prototype applications and high-volume production requirements.

Q: What is the operating temperature range for the IRL540NSTRLPBF?

A: The IRL540NSTRLPBF operates across a junction temperature range of -55°C to 175°C (TJ), providing performance across industrial and extended temperature applications.