IRLR110ATF N-Channel MOSFET 100V 4.7A Equivalent & Substitute Parts

Part Overview

The IRLR110ATF is an N-Channel MOSFET manufactured by onsemi, rated for 100V drain-to-source voltage with 4.7A continuous drain current at 25°C. The device is housed in a TO-252AA (DPAK) surface mount package and is classified as obsolete. Due to its obsolete status, equivalent and substitute parts from active product lines are necessary to maintain design continuity and ensure long-term component availability for new production and field replacements.

Substiute Parts

IRLR110ATF

onsemiIn Stock: 4227IRLR110ATF Datasheet

Current PartRFQ

AOD4504

Alpha & Omega Semiconductor Inc.In Stock: 20326AOD4504 Datasheet

SimilarRFQ

BUK7275-100A,118

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

SimilarRFQ

IRLR110

Vishay SiliconixIn Stock: 16710IRLR110 Datasheet

SimilarRFQ

IRLR110PBF

Vishay SiliconixIn Stock: 22766IRLR110PBF Datasheet

SimilarRFQ

IRLR110TR

Vishay SiliconixIn Stock: 1242IRLR110TR Datasheet

SimilarRFQ

IRLR110TRL

Vishay SiliconixIn Stock: 1085IRLR110TRL Datasheet

SimilarRFQ

IRLR110TRLPBF

Vishay SiliconixIn Stock: 737IRLR110TRLPBF Datasheet

SimilarRFQ

IRLR110TRPBF

Vishay SiliconixIn Stock: 15267IRLR110TRPBF Datasheet

SimilarRFQ

IRLR110TRR

Vishay SiliconixIn Stock: 1200IRLR110TRR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IRLR110ATF is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

• Drain-to-Source Voltage (Vdss): Must be equal to or greater than 100V
• Continuous Drain Current (Id): Must be equal to or greater than 4.7A at 25°C
• Package Type: Must be TO-252-3 (DPAK) surface mount
• FET Type: N-Channel MOSFET technology
• Gate Voltage Rating (Vgs): Must accommodate ±20V or greater

Secondary Compatibility Parameters:

• On-State Resistance (Rds On): Lower values indicate improved performance
• Gate Charge (Qg): Lower values reduce switching losses
• Input Capacitance (Ciss): Affects gate drive requirements
• Operating Temperature Range: Must support -55°C to 150°C minimum
• Moisture Sensitivity Level (MSL): Level 1 (Unlimited) preferred for reliability

Substitute parts are grouped into two categories: Direct Equivalents (identical electrical specifications with different packaging or manufacturing variants) and Functional Alternatives (higher performance specifications that maintain backward compatibility).

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalents (Preferred for Pin-Compatible Replacement):

The IRLR110PBF, IRLR110TRPBF, IRLR110TRL, and IRLR110TRLPBF are functionally equivalent to the IRLR110ATF with identical electrical specifications (100V, 4.3A continuous drain current). These parts are manufactured by Vishay Siliconix and are in active production status, ensuring long-term availability. The IRLR110TRPBF and IRLR110TRLPBF variants are ROHS3 compliant, making them suitable for applications requiring environmental compliance. The IRLR110PBF is available in Tube packaging, while IRLR110TRPBF is supplied in Cut Tape and Digi-Reel formats.

Functional Alternatives (Higher Performance):

The AOD4504 (Alpha & Omega Semiconductor) provides higher drain-to-source voltage (200V) and improved on-state resistance (400 mOhm), with active product status and ROHS3 compliance. This part is suitable for applications requiring higher voltage headroom while maintaining compatible package geometry.

The BUK7275-100A,118 (Nexperia USA Inc.) offers significantly higher continuous drain current (21.7A) and substantially lower on-state resistance (75 mOhm), with extended operating temperature range (-55°C to 175°C) and AEC-Q101 automotive qualification. This part is suitable for high-current applications but is classified as obsolete.

Compliance Considerations:

For new designs requiring environmental compliance, IRLR110TRPBF and IRLR110TRLPBF are recommended due to ROHS3 compliance status. The AOD4504 also meets ROHS3 requirements. All substitute parts maintain MSL Level 1 (Unlimited) moisture sensitivity rating, ensuring consistent handling requirements.

Frequently Asked Questions (FAQ)

Q: Can the IRLR110PBF directly replace the IRLR110ATF in existing designs?

A: Yes. The IRLR110PBF is electrically equivalent with identical Vdss (100V), similar continuous drain current (4.3A vs. 4.7A), and identical package geometry (TO-252-3 DPAK). The primary difference is packaging format (Tube vs. unspecified) and RoHS compliance status (ROHS3 vs. not specified). Pin configuration and electrical performance are compatible for direct substitution.

Q: What is the difference between IRLR110TRPBF and IRLR110TRL?

A: Both parts are electrically identical with 100V Vdss and 4.3A continuous drain current. The primary differences are packaging format (IRLR110TRPBF is supplied in Cut Tape and Digi-Reel; IRLR110TRL packaging is not specified) and RoHS compliance (IRLR110TRPBF is ROHS3 compliant; IRLR110TRL is RoHS non-compliant). Electrical performance and pin configuration are identical.

Q: Why does the AOD4504 have a higher Vdss rating (200V vs. 100V)?

A: The AOD4504 is designed for applications requiring higher voltage isolation margins. The 200V Vdss rating provides additional safety margin in circuits with voltage transients or overshoot conditions. However, the continuous drain current is lower (6A vs. 4.7A), and gate threshold voltage is higher (3.7V vs. 2V), requiring different gate drive considerations. This part is suitable for applications where voltage headroom is prioritized over current capacity.

Q: Is the BUK7275-100A,118 suitable as a direct replacement?

A: The BUK7275-100A,118 maintains the same 100V Vdss rating and TO-252-3 DPAK package, but offers significantly higher continuous drain current (21.7A) and lower on-state resistance (75 mOhm). This part is suitable for high-current applications but is classified as obsolete. The higher current capability and lower Rds On make it a functional upgrade for designs requiring improved thermal performance, though gate drive characteristics differ due to higher gate charge (115 nC vs. 8 nC).

Q: What are the gate drive voltage differences between substitute parts?

A: The IRLR110ATF, IRLR110PBF, IRLR110TRPBF, and IRLR110TRL all operate with 5V gate drive voltage and support ±10V to ±20V maximum gate voltage. The AOD4504 requires 10V gate drive voltage and supports ±20V maximum gate voltage. The BUK7275-100A,118 also requires 10V gate drive voltage. Designs using 5V gate drive logic must account for the higher threshold voltage of the AOD4504 and BUK7275-100A,118 variants.

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

A: Yes. All substitute parts listed are housed in TO-252-3 (DPAK) surface mount packages with identical pin configurations. Packaging format (Tube, Cut Tape, Digi-Reel) varies by manufacturer and part number variant, but the physical package geometry and PCB footprint are compatible across all listed alternatives.

Q: Which substitute part offers the best long-term availability?

A: The IRLR110TRPBF and IRLR110TRLPBF (Vishay Siliconix) are recommended for long-term availability due to active product status and ROHS3 compliance. The AOD4504 (Alpha & Omega Semiconductor) is also in active production with ROHS3 compliance. The BUK7275-100A,118 is classified as obsolete and should not be selected for new designs requiring extended product lifecycle support.

Q: What is the impact of lower gate charge on circuit performance?

A: Lower gate charge (Qg) reduces the energy required to switch the MOSFET on and off, resulting in lower gate drive power consumption and faster switching transitions. The IRLR110 variants (6.1 nC) have lower gate charge compared to the IRLR110ATF (8 nC), providing marginal improvements in switching efficiency. The AOD4504 (115 nC) and BUK7275-100A,118 have significantly higher gate charge, requiring more robust gate drive circuits and resulting in higher switching losses.