IRFR024NTRR N-Channel 55V 17A MOSFET DPAK Equivalent & Substitute Parts

Part Overview

The IRFR024NTRR is an N-Channel MOSFET manufactured by Infineon Technologies in the HEXFET® series, rated for 55V drain-to-source voltage and 17A continuous drain current at 25°C. The device is housed in a TO-252AA (DPAK) surface mount package with a maximum power dissipation of 45W at case temperature. This part is classified as Obsolete, which necessitates identification of equivalent and substitute components for new designs and ongoing production support. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts provide functional alternatives with comparable or enhanced performance characteristics within the same package family.

Key Parameters

Parameter	Value	Unit
Drain-to-Source Voltage (Vdss)	55	V
Continuous Drain Current (Id) @ 25°C	17	A (Tc)
On-State Resistance (Rds On) @ 10A, 10V	75	mOhm
Gate Threshold Voltage (Vgs(th)) @ 250µA	4	V
Gate Charge (Qg) @ 10V	20	nC
Input Capacitance (Ciss) @ 25V	370	pF
Power Dissipation (Max)	45	W (Tc)
Operating Temperature Range	-55 to 175	°C (TJ)
Package Type	TO-252-3 DPAK	Surface Mount
Gate Voltage (Max)	±20	V

Substitute Part Grouping Explanation

Substitution of the IRFR024NTRR is determined by the following critical parameters: drain-to-source voltage rating (Vdss), continuous drain current capability (Id), on-state resistance (Rds On), package type (TO-252 DPAK), and mounting configuration (surface mount). Parts are grouped into three categories based on their relationship to the main part:

Direct Equivalents (Infineon IRFR024 Series): Parts maintaining identical electrical specifications (55V, 17A, 75mOhm Rds On) with variations only in packaging format (Cut Tape, Tape & Reel) or RoHS compliance status. These include IRFR024NTRPBF and IRFR024NTRLPBF.

Parametric Equivalents (Cross-Manufacturer): Parts from alternative manufacturers (Vishay Siliconix, STMicroelectronics, onsemi, Alpha & Omega Semiconductor) that operate within the same voltage class (55V–60V) and current range (12A–17A) with comparable Rds On characteristics (60–100mOhm). These maintain TO-252 DPAK packaging and surface mount configuration.

Functional Substitutes (Higher Voltage/Current Rating): Parts with enhanced voltage ratings (100V) or current capabilities (23A) that provide design margin while maintaining the same package footprint and thermal characteristics. These are suitable for applications where increased headroom is beneficial.

Parameter Comparison

Part Number	Manufacturer	Vdss (V)	Id @ 25°C (A)	Rds On (mOhm)	Qg (nC)	Package	Product Status	RoHS Status
IRFR024NTRR	Infineon	55	17	75 @ 10A, 10V	20 @ 10V	TO-252 DPAK	Obsolete	Non-compliant
IRFR024NTRPBF	Infineon	55	17	75 @ 10A, 10V	20 @ 10V	TO-252 DPAK	Active	ROHS3 Compliant
IRFR024NTRLPBF	Infineon	55	17	75 @ 10A, 10V	20 @ 10V	TO-252 DPAK	Not For New Designs	ROHS3 Compliant
IRFR024TRLPBF	Vishay Siliconix	60	14	100 @ 8.4A, 10V	25 @ 10V	TO-252 DPAK	Active	ROHS3 Compliant
IRFR024TRPBF	Vishay Siliconix	60	14	100 @ 8.4A, 10V	25 @ 10V	TO-252 DPAK	Active	ROHS3 Compliant
IRFR024TRR	Vishay Siliconix	60	14	100 @ 8.4A, 10V	25 @ 10V	TO-252 DPAK	Active	Non-compliant
IRFR024PBF	Vishay Siliconix	60	14	100 @ 8.4A, 10V	25 @ 10V	TO-252 DPAK	Active	ROHS3 Compliant
AOD444	Alpha & Omega Semiconductor	60	12	60 @ 12A, 10V	10 @ 10V	TO-252 DPAK	Active	ROHS3 Compliant
HUF76407D3ST	onsemi	60	12	92 @ 13A, 10V	11.3 @ 10V	TO-252 DPAK	Active	ROHS3 Compliant
STD12NF06T4	STMicroelectronics	60	12	100 @ 6A, 10V	12 @ 10V	TO-252 DPAK	Active	ROHS3 Compliant
STD15NF10T4	STMicroelectronics	100	23	65 @ 12A, 10V	40 @ 10V	TO-252 DPAK	Active	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Obsolete Part Mitigation):

IRFR024NTRPBF is the primary recommended direct equivalent. This part maintains 100% electrical and mechanical compatibility with the IRFR024NTRR while offering Active product status and ROHS3 compliance. It is available in Cut Tape and Digi-Reel® packaging formats with 205,200 units in stock, ensuring supply continuity. This part is suitable for immediate substitution in existing designs without circuit modification.

For New Design Implementation:

IRFR024NTRPBF remains the optimal choice for new designs requiring the 55V/17A specification. Alternatively, IRFR024TRLPBF (Vishay Siliconix) provides a functionally compatible option with 60V rating and 14A continuous current, offering enhanced voltage margin. Both parts are ROHS3 compliant and maintain TO-252 DPAK packaging.

For Applications Requiring Enhanced Performance:

STD15NF10T4 (STMicroelectronics) provides increased voltage headroom (100V) and current capability (23A) within the same TO-252 DPAK footprint. This part is suitable for designs where higher voltage transient immunity or increased current capacity is required. The lower Rds On (65mOhm @ 12A) reduces conduction losses compared to the original specification.

For Cost-Optimized Designs:

AOD444 (Alpha & Omega Semiconductor) offers the lowest on-state resistance (60mOhm @ 12A, 10V) among 60V-rated alternatives, reducing power dissipation in high-frequency switching applications. This part is suitable for designs where thermal management is a primary concern.

Compliance Considerations:

All recommended active substitutes are ROHS3 compliant except IRFR024TRR. For applications requiring RoHS compliance, IRFR024NTRPBF, IRFR024TRLPBF, IRFR024TRPBF, IRFR024PBF, AOD444, HUF76407D3ST, and STD12NF06T4 meet regulatory requirements. IRFR024NTRLPBF carries "Not For New Designs" status and should be avoided in new product development.

Frequently Asked Questions (FAQ)

Q: Can IRFR024NTRPBF be used as a direct drop-in replacement for IRFR024NTRR?

A: Yes. IRFR024NTRPBF is electrically and mechanically identical to IRFR024NTRR. Both parts feature 55V Vdss, 17A continuous drain current, 75mOhm Rds On, and TO-252 DPAK packaging. The primary differences are product status (Active vs. Obsolete) and RoHS compliance (ROHS3 vs. Non-compliant). No circuit modifications are required.

Q: What is the difference between IRFR024NTRPBF and IRFR024NTRLPBF?

A: Both parts are Infineon IRFR024 devices with identical electrical specifications. IRFR024NTRPBF is supplied in Cut Tape and Digi-Reel® format with Active status. IRFR024NTRLPBF is supplied in Tape & Reel format with "Not For New Designs" status. For new designs, IRFR024NTRPBF is the preferred choice.

Q: Can Vishay Siliconix IRFR024TRLPBF replace the Infineon IRFR024NTRR?

A: IRFR024TRLPBF is functionally compatible but not a direct equivalent. It features 60V Vdss (vs. 55V), 14A continuous current (vs. 17A), and 100mOhm Rds On (vs. 75mOhm). The higher voltage rating provides design margin, but the lower current rating and higher on-state resistance may affect performance in current-limited or high-frequency applications. Circuit validation is recommended.

Q: Is STD15NF10T4 suitable for applications designed for IRFR024NTRR?

A: STD15NF10T4 provides enhanced specifications (100V, 23A, 65mOhm Rds On) and is suitable for applications where increased voltage and current headroom are beneficial. However, the higher gate charge (40nC vs. 20nC) and input capacitance (870pF vs. 370pF) may require gate driver adjustments in high-frequency switching circuits. Circuit analysis is necessary to confirm compatibility.

Q: What packaging options are available for IRFR024NTRR equivalents?

A: All recommended equivalents and substitutes are supplied in TO-252-3 DPAK (2 Leads + Tab) surface mount package. Packaging format variations include Cut Tape (CT), Digi-Reel®, and Tape & Reel (TR). These variations do not affect electrical performance or PCB footprint compatibility.

Q: Are all substitute parts RoHS compliant?

A: Most active substitutes are ROHS3 compliant. Exceptions include IRFR024TRR (Vishay Siliconix, Non-compliant) and the original IRFR024NTRR (Obsolete, Non-compliant). For applications requiring RoHS compliance, select from IRFR024NTRPBF, IRFR024TRLPBF, IRFR024TRPBF, IRFR024PBF, AOD444, HUF76407D3ST, or STD12NF06T4.

Q: What is the thermal performance difference between IRFR024NTRR and its substitutes?

A: IRFR024NTRR is rated for 45W maximum power dissipation at case temperature. Vishay Siliconix IRFR024 variants (IRFR024TRLPBF, IRFR024TRPBF, IRFR024PBF) are rated for 42W. STD12NF06T4 is rated for 30W. STD15NF10T4 is rated for 70W. AOD444 is rated for 20W at case temperature. Higher power dissipation ratings provide greater thermal margin in high-current applications.

Q: Can AOD444 be used in high-current applications exceeding 12A continuous?

A: AOD444 is rated for 12A continuous drain current at 25°C case temperature. Applications requiring sustained currents above 12A should use parts with higher current ratings such as IRFR024NTRPBF (17A), IRFR024TRLPBF (14A), or STD15NF10T4 (23A). Exceeding rated current specifications will result in excessive junction temperature and device failure.

Q: What is the significance of gate charge (Qg) differences among substitute parts?

A: Gate charge affects gate driver power consumption and switching speed. IRFR024NTRR and IRFR024NTRPBF feature 20nC gate charge. Substitutes range from 10nC (AOD444) to 40nC (STD15NF10T4). Lower gate charge reduces driver power dissipation and enables faster switching. Higher gate charge may require higher gate drive current or longer switching times. Gate driver compatibility should be verified for parts with significantly different Qg values.

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