IRLR110 N-Channel MOSFET Equivalent & Substitute Parts

Part Overview

The IRLR110 is an N-Channel MOSFET manufactured by Vishay Siliconix, rated for 100V drain-to-source voltage with 4.3A continuous drain current at 25°C. This device is housed in a DPAK (TO-252-3) surface mount package and is designed for general-purpose switching applications requiring moderate current handling and low on-resistance characteristics.

The IRLR110 is classified as an Active product with RoHS non-compliant status. Equivalent and substitute parts are necessary when RoHS compliance is required, when specific packaging formats are mandated, or when alternative manufacturers' components are preferred for supply chain diversification and inventory management.

Substiute Parts

IRLR110

Vishay SiliconixIn Stock: 16710IRLR110 Datasheet

Current PartRFQ

IRLR110PBF

Vishay SiliconixIn Stock: 22766IRLR110PBF Datasheet

Parametric EquivalentRFQ

BUK7275-100A,118

Nexperia USA Inc.In Stock: 69228BUK7275-100A,118 Datasheet

MFR RecommendedRFQ

STD6NF10T4

STMicroelectronicsIn Stock: 22431STD6NF10T4 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IRLR110 is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Drain-to-Source Voltage (Vdss) must equal or exceed 100V
• Continuous Drain Current (Id) must meet or exceed 4.3A at 25°C
• On-Resistance (Rds On) characteristics must support the application's switching and thermal requirements
• Gate Threshold Voltage (Vgs(th)) must be compatible with the drive circuit
• Operating temperature range must encompass the application's thermal envelope

Mechanical Compatibility Requirements:

• Package type must be DPAK (TO-252-3) surface mount configuration
• Pin configuration must maintain electrical equivalence (2 Leads + Tab)
• Moisture Sensitivity Level (MSL) must be acceptable for assembly processes

Compliance and Supply Chain Requirements:

• RoHS compliance status may be a determining factor for regulatory adherence
• Product status (Active vs. Obsolete) affects long-term availability
• Packaging format (Tube, Cut Tape, Digi-Reel) may be specified by procurement requirements

The substitute parts listed below meet the core electrical and mechanical parameters while offering variations in compliance status, current ratings, and manufacturer sourcing.

Parameter Comparison

Engineering Selection Recommendations

IRLR110PBF (Vishay Siliconix)

The IRLR110PBF is an electrical and mechanical equivalent to the IRLR110, with identical electrical specifications across all critical parameters including Vdss, Id, Rds On, Vgs(th), gate charge, and input capacitance. The primary distinction is RoHS3 compliance status and packaging format (Tube). This part is recommended when RoHS compliance is mandated by regulatory requirements or customer specifications. Both parts maintain Active product status, ensuring continued availability. The IRLR110PBF is suitable for direct substitution in applications where the original IRLR110 is specified, with no circuit redesign required.

STD6NF10T4 (STMicroelectronics)

The STD6NF10T4 is a functional substitute offering higher continuous drain current (6A versus 4.3A) and improved on-resistance characteristics (250mOhm versus 540mOhm at comparable conditions). This device is manufactured by STMicroelectronics using STripFET™ technology and is RoHS3 compliant with Active product status. The STD6NF10T4 operates across an extended temperature range (-65°C to 175°C) compared to the IRLR110 (-55°C to 150°C). This part is suitable for applications requiring enhanced current handling capability or improved thermal performance. Gate threshold voltage is higher (4V versus 2V), requiring verification of drive circuit compatibility. Available in Cut Tape and Digi-Reel® packaging formats.

BUK7275-100A,118 (Nexperia USA Inc.)

The BUK7275-100A,118 is a high-performance substitute with significantly elevated continuous drain current (21.7A versus 4.3A) and superior on-resistance (75mOhm versus 540mOhm). This device is manufactured by Nexperia using TrenchMOS™ technology and carries AEC-Q101 automotive qualification with RoHS3 compliance. However, this part is classified as Obsolete, limiting long-term supply availability. The BUK7275-100A,118 is suitable only for applications requiring substantially higher current capacity and thermal performance than the IRLR110. Gate threshold voltage (4V) and input capacitance (1210pF) are significantly higher, requiring comprehensive circuit evaluation. This part is not recommended for direct substitution due to obsolete status and substantially different electrical characteristics.

Frequently Asked Questions (FAQ)

Q: Can IRLR110PBF be used as a direct replacement for IRLR110?

A: Yes. The IRLR110PBF is electrically and mechanically identical to the IRLR110 across all critical parameters. The primary difference is RoHS3 compliance status and packaging format. No circuit modifications are required for substitution.

Q: What is the primary reason to select STD6NF10T4 over IRLR110?

A: The STD6NF10T4 provides higher continuous drain current (6A versus 4.3A) and lower on-resistance (250mOhm versus 540mOhm), resulting in reduced power dissipation and improved thermal performance. Selection depends on application current requirements and thermal constraints. Gate threshold voltage is higher (4V versus 2V), requiring drive circuit compatibility verification.

Q: Why is BUK7275-100A,118 listed as a substitute if it is obsolete?

A: The BUK7275-100A,118 is included in the substitute list based on the provided input parameters. However, its Obsolete product status indicates limited availability. This part is suitable only for applications requiring substantially higher current capacity (21.7A) and is not recommended for new designs or direct replacement scenarios.

Q: Are all substitute parts available in DPAK packaging?

A: Yes. All substitute parts listed are housed in DPAK (TO-252-3) surface mount packages with identical pin configurations (2 Leads + Tab), ensuring mechanical compatibility. Packaging formats (Tube, Cut Tape, Digi-Reel®) vary by supplier and may be specified according to procurement requirements.

Q: What is the impact of different gate threshold voltages on circuit design?

A: Gate threshold voltage (Vgs(th)) determines the minimum gate-to-source voltage required to turn the MOSFET on. The IRLR110 and IRLR110PBF have lower thresholds (2V) compared to STD6NF10T4 and BUK7275-100A,118 (4V). Lower threshold devices are easier to drive with low-voltage logic circuits. Higher threshold devices require higher gate drive voltages. Drive circuit compatibility must be verified before substitution.

Q: Does RoHS compliance affect electrical performance?

A: RoHS compliance is a regulatory and manufacturing requirement, not an electrical performance specification. RoHS3-compliant parts (IRLR110PBF, STD6NF10T4, BUK7275-100A,118) meet environmental and material restrictions. The IRLR110 (non-compliant) has identical electrical characteristics to IRLR110PBF. Selection based on RoHS status depends on application regulatory requirements.

Q: What is the significance of operating temperature range differences?

A: The IRLR110 operates from -55°C to 150°C (TJ), while STD6NF10T4 and BUK7275-100A,118 extend to 175°C. Extended temperature range provides design margin for high-temperature applications. Applications operating within the IRLR110's temperature envelope do not require substitution based on temperature alone.

Q: Can input capacitance differences affect circuit performance?

A: Yes. Input capacitance (Ciss) affects gate charge requirements and switching speed. The IRLR110 and IRLR110PBF have 250pF, STD6NF10T4 has 280pF, and BUK7275-100A,118 has 1210pF. Higher capacitance requires greater gate charge and may slow switching transitions. Applications with tight switching frequency or gate drive current constraints require evaluation of capacitance differences.