AUIRLS4030 N-Channel 100V 180A MOSFET Equivalent & Substitute Parts

Part Overview

The AUIRLS4030 is an N-Channel 100V 180A surface mount MOSFET manufactured by Infineon Technologies in the HEXFET® series. This device is rated for 370W power dissipation and features a D2PAK (TO-263-3) package configuration. The part is classified as obsolete, necessitating identification of active equivalent and substitute components that maintain electrical and mechanical compatibility for existing designs or new production requirements.

Key Parameters

Parameter	Value	Unit
Drain to Source Voltage (Vdss)	100	V
Continuous Drain Current (Id) @ 25°C	180	A
Rds On (Max) @ 110A, 10V	4.3	mOhm
Power Dissipation (Max)	370	W
Gate Charge (Qg) @ 4.5V	130	nC
Operating Temperature Range	-55 to 175	°C
Package Type	D2PAK (TO-263-3)	—
Mounting Type	Surface Mount	—
Grade	Automotive	—
Qualification	AEC-Q101	—

Substitute Part Grouping Explanation

Substitution of the AUIRLS4030 is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

Drain to Source Voltage (Vdss): Must equal or exceed 100V
Continuous Drain Current (Id): Must support minimum 180A or lower current ratings depending on application thermal requirements
Rds On (on-state resistance): Lower values indicate improved performance; values between 3.9mOhm and 5.6mOhm are acceptable within the 100V class
Power Dissipation: Must support thermal requirements of the application
Gate Charge (Qg): Affects switching speed and driver requirements
Operating Temperature: Must span -55°C to 175°C minimum

Mechanical Compatibility Criteria:

Package Type: D2PAK (TO-263-3) or equivalent surface mount packages (H2PAK-2, 8-PowerTDFN)
Mounting Type: Surface mount only
Lead configuration: 2 Leads + Tab standard

Compliance & Status Criteria:

RoHS3 Compliance: Required
Moisture Sensitivity Level (MSL): Level 1 (Unlimited) preferred
Product Status: Active status preferred for long-term availability
Automotive Grade: AEC-Q101 qualification maintained where applicable

Substitute parts are grouped into two categories:

Category A - Direct Package Equivalents (D2PAK/H2PAK-2): Parts maintaining the same or compatible package footprint with comparable current ratings (100A–180A range).

Category B - Alternative Package Solutions (8-PowerTDFN): Parts with different package geometry but equivalent electrical performance, suitable for designs with layout flexibility.

Parameter Comparison

Part Number	Manufacturer	Vdss (V)	Id @ 25°C (A)	Rds On (mOhm)	Pd Max (W)	Qg (nC)	Package	Status
AUIRLS4030	Infineon	100	180	4.3	370	130	D2PAK	Obsolete
STH180N10F3-2	STMicroelectronics	100	180	4.5	315	114.6	H2PAK-2	Active
STH150N10F7-2	STMicroelectronics	100	110	3.9	250	117	H2PAK-2	Active
FDB047N10	onsemi	100	120	4.7	375	210	D2PAK	Active
SUM70040E-GE3	Vishay Siliconix	100	120	4.0	375	120	D2PAK	Active
IPB042N10N3GATMA1	Infineon	100	100	4.2	214	117	D2PAK	Active
PSMN5R6-100BS,118	Nexperia USA Inc.	100	100	5.6	306	141	D2PAK	Active
IAUC100N10S5L040ATMA1	Infineon	100	100	4.0	167	78	8-PowerTDFN	Active

Engineering Selection Recommendations

Primary Substitute (Highest Compatibility):

STH180N10F3-2 (STMicroelectronics) is the primary recommended substitute. This part matches the AUIRLS4030 in continuous drain current rating (180A) and voltage class (100V). The H2PAK-2 package provides equivalent thermal performance to D2PAK with compatible PCB footprint dimensions. Rds On of 4.5mOhm is within acceptable tolerance of the original 4.3mOhm specification. Gate charge of 114.6nC is lower than the original 130nC, resulting in faster switching characteristics. The part is active with full AEC-Q101 automotive qualification and RoHS3 compliance.

Secondary Substitutes (Current-Reduced Applications):

FDB047N10 (onsemi) and SUM70040E-GE3 (Vishay Siliconix) are suitable for applications where continuous drain current can be reduced to 120A. Both maintain D2PAK package compatibility and 100V voltage rating. FDB047N10 offers 375W power dissipation matching the original specification. SUM70040E-GE3 provides superior Rds On performance (4.0mOhm) and lower gate charge (120nC). Both are active products with RoHS3 compliance.

Alternative Package Solution:

IAUC100N10S5L040ATMA1 (Infineon OptiMOS™-5) provides equivalent electrical performance in an 8-PowerTDFN package for designs with layout flexibility. This part is suitable for applications requiring 100A continuous drain current. Lower gate charge (78nC) and reduced power dissipation (167W) indicate optimized switching performance for lower-current applications.

Compatibility Considerations:

All recommended substitutes maintain the following compliance standards:

RoHS3 Compliant
Moisture Sensitivity Level 1 (Unlimited)
Operating temperature range -55°C to 175°C
Surface mount configuration

Package selection depends on PCB layout constraints. D2PAK and H2PAK-2 packages are mechanically compatible with existing AUIRLS4030 designs. The 8-PowerTDFN package requires layout redesign but offers superior thermal characteristics in compact form factors.

Frequently Asked Questions (FAQ)

Q1: Can STH180N10F3-2 directly replace AUIRLS4030 in existing PCB designs?

A: STH180N10F3-2 uses the H2PAK-2 package while AUIRLS4030 uses D2PAK. Both packages have compatible lead spacing and thermal tab dimensions, allowing direct PCB footprint substitution in most applications. Verify PCB artwork dimensions against manufacturer datasheets before production.

Q2: What is the difference between D2PAK and H2PAK-2 packages?

A: D2PAK (TO-263-3) and H2PAK-2 are both surface mount packages with 2 leads plus thermal tab. H2PAK-2 offers improved thermal performance through enhanced tab design. Both packages are mechanically compatible with standard TO-263 PCB footprints used for AUIRLS4030.

Q3: Why do some substitutes have lower continuous drain current ratings (100A vs. 180A)?

A: Lower current ratings indicate different thermal design points. Substitutes rated at 100A–120A are suitable for applications where the design does not require the full 180A capability of the original part. Verify application current requirements before selecting a lower-rated substitute.

Q4: Is gate charge (Qg) difference significant when substituting?

A: Gate charge affects switching speed and driver circuit requirements. Lower Qg values (78–120nC) result in faster switching compared to the original 130nC. Existing gate driver circuits designed for 130nC will operate correctly with lower Qg substitutes, though switching performance will improve.

Q5: Are all substitute parts automotive-qualified?

A: STH180N10F3-2, STH150N10F7-2, and FDB047N10 maintain AEC-Q101 automotive qualification. IAUC100N10S5L040ATMA1, IPB042N10N3GATMA1, and PSMN5R6-100BS,118 are automotive-grade components. Verify specific AEC-Q101 certification requirements for your application before final selection.

Q6: What is the impact of Rds On variation among substitutes?

A: Rds On values range from 3.9mOhm to 5.6mOhm across substitutes. Lower Rds On reduces conduction losses and heat generation. The original AUIRLS4030 specifies 4.3mOhm. Substitutes within ±1.3mOhm of this value maintain equivalent thermal performance. Higher Rds On values (5.6mOhm) may require thermal design review for high-current applications.

Q7: Can IAUC100N10S5L040ATMA1 be used in place of AUIRLS4030?

A: IAUC100N10S5L040ATMA1 is suitable only for applications where continuous drain current does not exceed 100A. The 8-PowerTDFN package requires PCB layout redesign and is not footprint-compatible with D2PAK. This part is recommended for new designs with layout flexibility, not direct replacement of existing AUIRLS4030 designs.

Q8: What compliance certifications are maintained across all substitutes?

A: All substitute parts maintain RoHS3 compliance, Moisture Sensitivity Level 1 (Unlimited), and operating temperature range -55°C to 175°C. REACH status is unaffected for all parts. Verify specific certifications required by your application or regional standards before final selection.

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