AUIRLR024Z N-Channel MOSFET Equivalent & Substitute Parts

Part Overview

The AUIRLR024Z is an N-Channel MOSFET manufactured by Infineon Technologies, rated for 55V drain-to-source voltage and 16A continuous drain current in a Surface Mount TO-252AA (DPAK) package. This device is classified as Obsolete, making identification of functionally equivalent substitute parts essential for ongoing design support and production continuity. The HEXFET® series device operates across a wide temperature range of -55°C to 175°C and dissipates up to 35W at the case temperature.

Key Parameters

Parameter	Value	Unit
Drain-to-Source Voltage (Vdss)	55	V
Continuous Drain Current (Id) @ 25°C	16	A (Tc)
On-State Resistance (Rds On Max) @ 10V	58	mOhm @ 9.6A
Gate Threshold Voltage (Vgs(th) Max)	3	V @ 250µA
Gate Charge (Qg Max) @ 5V	9.9	nC
Input Capacitance (Ciss Max) @ 25V	380	pF
Power Dissipation (Max)	35	W (Tc)
Operating Temperature Range	-55 to 175	°C (TJ)
Package Type	TO-252-3 (DPAK)	Surface Mount
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the AUIRLR024Z is determined by the following critical parameters:

Voltage Rating Compatibility: Substitute parts must have a Vdss rating equal to or greater than 55V. All three substitute candidates (IPD25N06S4L30ATMA2, STD20NF06T4, DMNH6042SK3Q-13) feature 60V ratings, providing adequate voltage margin.

Current Handling Capacity: The original part specifies 16A continuous drain current. All substitute parts exceed this requirement with ratings of 24A to 25A, ensuring thermal and electrical headroom.

Package Compatibility: All substitute parts use the TO-252-3 (DPAK) package with identical pinout and mechanical footprint, enabling direct board-level replacement without layout modification.

On-State Resistance (Rds On): The original part specifies 58mOhm maximum at 10V gate drive. Substitute parts range from 30mOhm to 50mOhm, representing improvements in conduction losses.

Gate Charge and Input Capacitance: These parameters affect switching speed and gate drive requirements. Substitute parts show variations in these characteristics but remain within acceptable ranges for standard gate driver circuits.

Temperature Range: All substitute parts maintain the -55°C to 175°C operating range, ensuring thermal compatibility.

Compliance and Certifications: RoHS3 compliance is maintained across all candidates. Two substitute parts (IPD25N06S4L30ATMA2 and DMNH6042SK3Q-13) carry AEC-Q101 automotive qualification.

Parameter Comparison

Parameter	AUIRLR024Z	IPD25N06S4L30ATMA2	STD20NF06T4	DMNH6042SK3Q-13
Manufacturer	Infineon	Infineon	STMicroelectronics	Diodes Inc.
Vdss (V)	55	60	60	60
Id @ 25°C (A)	16	25	24	25
Rds On Max @ 10V (mOhm)	58 @ 9.6A	30 @ 25A	40 @ 12A	50 @ 6A
Vgs(th) Max (V)	3 @ 250µA	2.2 @ 8µA	4 @ 250µA	3 @ 250µA
Qg Max (nC)	9.9 @ 5V	16.3 @ 10V	31 @ 10V	8.8 @ 10V
Ciss Max (pF)	380 @ 25V	1220 @ 25V	690 @ 25V	584 @ 25V
Power Dissipation Max (W)	35 (Tc)	29 (Tc)	60 (Tc)	2 (Ta)
Operating Temperature (°C)	-55 to 175	-55 to 175	-55 to 175	-55 to 175
Package	TO-252-3 (DPAK)	PG-TO252-3-11	DPAK	TO-252-3
Product Status	Obsolete	Active	Active	Active
RoHS Status	ROHS3	ROHS3	ROHS3	ROHS3
AEC-Q101	—	Yes	—	Yes

Engineering Selection Recommendations

IPD25N06S4L30ATMA2 (Infineon OptiMOS™ Series): This part is an Active product with AEC-Q101 automotive qualification. It provides the lowest on-state resistance (30mOhm) among all candidates, resulting in reduced conduction losses. The higher input capacitance (1220pF) and gate charge (16.3nC) require verification of gate driver capability in existing designs. Recommended for applications prioritizing efficiency and requiring automotive-grade reliability.

STD20NF06T4 (STMicroelectronics STripFET™ II Series): This part is an Active product with the highest power dissipation rating (60W), providing maximum thermal margin. The higher gate charge (31nC) and input capacitance (690pF) demand adequate gate drive resources. Recommended for applications with stringent thermal requirements or where gate drive capability is not a constraint.

DMNH6042SK3Q-13 (Diodes Incorporated): This part is an Active product with AEC-Q101 automotive qualification. It features the lowest gate charge (8.8nC) and moderate input capacitance (584pF), minimizing gate drive power consumption. The power dissipation specification (2W Ta) differs from other candidates and requires thermal analysis verification. Recommended for battery-powered or low-power gate drive applications.

All three substitute parts maintain RoHS3 compliance and the required -55°C to 175°C operating temperature range. Selection should be based on specific application requirements regarding gate drive capability, thermal dissipation, and supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can AUIRLR024Z be directly replaced with any of these substitute parts on the PCB?

A: Yes. All substitute parts use the TO-252-3 (DPAK) package with identical pinout and mechanical footprint. Direct board-level replacement is possible without layout modification. However, gate drive circuit verification is required due to variations in gate charge and input capacitance.

Q: What is the primary reason for finding substitutes for AUIRLR024Z?

A: The AUIRLR024Z is classified as Obsolete. Substitute parts are necessary to maintain design continuity, ensure long-term supply availability, and support production of new units.

Q: Do all substitute parts have the same voltage rating as the original?

A: No. The original AUIRLR024Z is rated for 55V, while all three substitute parts are rated for 60V. The higher voltage rating provides additional safety margin and is fully compatible with 55V applications.

Q: Which substitute part has the lowest on-state resistance?

A: The IPD25N06S4L30ATMA2 features the lowest Rds On at 30mOhm (measured at 25A, 10V gate drive), compared to 58mOhm for the original part. This results in lower conduction losses and reduced heat generation.

Q: Are there differences in gate drive requirements between the original and substitute parts?

A: Yes. Gate charge and input capacitance vary among the candidates. The DMNH6042SK3Q-13 has the lowest gate charge (8.8nC), while the IPD25N06S4L30ATMA2 has the highest (16.3nC). Gate driver circuits must be verified to ensure adequate current sourcing capability.

Q: Which substitute parts carry automotive qualification?

A: IPD25N06S4L30ATMA2 and DMNH6042SK3Q-13 both carry AEC-Q101 automotive qualification. These are suitable for automotive and industrial applications requiring formal qualification documentation.

Q: What is the difference in power dissipation specifications?

A: Power dissipation ratings vary: AUIRLR024Z (35W Tc), IPD25N06S4L30ATMA2 (29W Tc), STD20NF06T4 (60W Tc), and DMNH6042SK3Q-13 (2W Ta). Note that DMNH6042SK3Q-13 specifies power dissipation at ambient temperature (Ta) rather than case temperature (Tc), requiring separate thermal analysis.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts and the original AUIRLR024Z are RoHS3 compliant, meeting environmental and regulatory requirements for lead-free manufacturing.

Q: Can I use these substitute parts interchangeably in the same design?

A: Interchangeability depends on specific application requirements. All parts meet basic voltage, current, and package compatibility. However, differences in gate charge, input capacitance, and thermal characteristics require circuit-level verification before selecting a specific substitute.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message