AUIPS2041RTRL Equivalent & Substitute Parts

Part Overview

The AUIPS2041RTRL is an N-Channel power switch/driver manufactured by Infineon Technologies, designed for general-purpose low-side switching applications. This device operates with a 1:1 input-to-output ratio, delivering 1.4A maximum output current in a TO-252AA (DPAK) package. The part carries automotive-grade qualification (AEC-Q100) and operates across -40°C to 150°C junction temperature range.

The AUIPS2041RTRL is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production runs and field replacements.

Key Parameters

Parameter	Value
Manufacturer Part Number	AUIPS2041RTRL
Manufacturer	Infineon Technologies
Category	Power Management (PMIC)
Switch Type	General Purpose N-Channel
Output Configuration	Low Side, 1:1 Ratio
Current - Output (Max)	1.4A
Voltage - Load (Max)	60V
Rds On (Typ)	100mOhm
Fault Protection	Current Limiting (Fixed), Over Temperature
Operating Temperature	-40°C ~ 150°C (TJ)
Package / Case	TO-252-3, DPAK (2 Leads + Tab), SC-63
Mounting Type	Surface Mount
Product Status	Obsolete
Grade	Automotive
Qualification	AEC-Q100

Substitute Part Grouping Explanation

Substitution for the AUIPS2041RTRL is determined by the following critical parameters:

Output Configuration: Low-side, 1:1 input-to-output ratio, N-Channel topology
Current Rating: Minimum 1.4A output capability
Voltage Rating: Load voltage handling of at least 60V
Operating Temperature Range: -40°C to 150°C junction temperature
Fault Protection: Current limiting and over-temperature protection
Interface Type: On/Off control, non-inverting input
Mounting: Surface mount technology

Substitute parts are grouped into two categories based on package compatibility:

Category 1: TO-252-3 (DPAK) Package Substitutes — Direct package compatibility with identical footprint and thermal characteristics. These parts maintain the same mechanical interface as the original AUIPS2041RTRL.

Category 2: SOT-223 Package Substitutes — Alternative package format with different footprint and thermal performance. These require PCB layout modification but offer enhanced current handling or improved electrical characteristics.

Parameter Comparison

Part Number	Manufacturer	Current (Max)	Voltage - Load (Max)	Rds On (Typ)	Package	Product Status	Fault Protection
AUIPS2041RTRL	Infineon	1.4A	60V	100mOhm	TO-252-3 (DPAK)	Obsolete	Current Limiting, Over Temperature
BTS3142DATMA1	Infineon	4.6A	42V	23mOhm	TO-252-3 (DPAK)	Active	Current Limiting, Over Temperature, Over Voltage
BSP76E6433HUMA1	Infineon	1.4A	42V	150mOhm	SOT-223-4	Active	Current Limiting, Over Temperature, Over Voltage
BSP77E6433HUMA1	Infineon	2.17A	42V	70mOhm	SOT-223-4	Active	Current Limiting, Over Temperature, Over Voltage
BSP78HUMA1	Infineon	3A	42V	35mOhm	SOT-223-4	Active	Current Limiting, Over Temperature, Over Voltage
BTS3134NHUMA1	Infineon	3A	42V	35mOhm	SOT-223-4	Active	Current Limiting, Over Temperature, Over Voltage
BTS3207NHUMA1	Infineon	640mA	42V	500mOhm (Max)	SOT-223-4	Active	Current Limiting, Over Temperature, Over Voltage
VNL5050N3TR-E	STMicroelectronics	19A	36V	50mOhm (Max)	SOT-223	Active	Current Limiting, Over Temperature, Over Voltage
VNL5160N3TR-E	STMicroelectronics	3.5A	36V	160mOhm	SOT-223	Active	Current Limiting, Over Temperature, Over Voltage, Open Load Detect
VNN1NV04PTR-E	STMicroelectronics	1.7A	36V	250mOhm (Max)	SOT-223	Active	Current Limiting, Over Temperature, Over Voltage
VNN3NV04PTR-E	STMicroelectronics	3.5A	36V	120mOhm (Max)	SOT-223	Active	Current Limiting, Over Temperature, Over Voltage

Engineering Selection Recommendations

Primary Recommendation for Direct Replacement (Same Package):

BTS3142DATMA1 is the active-status equivalent in TO-252-3 (DPAK) package. This part maintains identical mechanical compatibility and thermal interface with the AUIPS2041RTRL. The BTS3142DATMA1 is ROHS3 compliant and carries full automotive-grade qualification. Note that the maximum load voltage is reduced to 42V compared to the original 60V specification; applications requiring 60V operation must select alternative parts.

Recommendations for SOT-223 Package Migration:

For designs permitting PCB layout modification, the following active Infineon HITFET® series parts offer improved electrical performance:

BSP76E6433HUMA1: Matched current rating (1.4A) with lower on-resistance (150mOhm typical) and enhanced fault protection including over-voltage detection.
BSP77E6433HUMA1: Increased current capability (2.17A) with significantly reduced on-resistance (70mOhm typical).
BSP78HUMA1: Maximum current capacity (3A) with lowest on-resistance (35mOhm typical) among Infineon SOT-223 options.

Cross-Manufacturer Alternative:

STMicroelectronics VIPower™ series parts provide active-status alternatives with enhanced feature sets:

VNL5160N3TR-E: 3.5A output with open load detection capability, suitable for applications requiring diagnostic feedback.
VNN3NV04PTR-E: 3.5A output with 120mOhm on-resistance, compatible with 36V maximum load voltage.

All recommended substitutes maintain -40°C to 150°C operating temperature range and provide current limiting and over-temperature protection. Load voltage derating must be evaluated for applications originally specified at 60V.

Frequently Asked Questions (FAQ)

Q: Can BTS3142DATMA1 directly replace AUIPS2041RTRL without PCB modification?

A: Yes, mechanically and electrically. Both use TO-252-3 (DPAK) package with identical pinout and thermal interface. However, the maximum load voltage is reduced from 60V to 42V. Verify your application operates within 42V maximum before substitution.

Q: What is the primary difference between Infineon HITFET® (BSP series) and STMicroelectronics VIPower™ (VNL/VNN series) substitutes?

A: Both are active-status, low-side N-Channel power switches with 1:1 configuration. Infineon HITFET® parts feature auto-restart capability in most models. STMicroelectronics VIPower™ series includes supply voltage specification (3.5V–5.5V for VNL5050N3TR-E) and additional diagnostics such as open load detection. Maximum load voltage differs: Infineon HITFET® supports 42V; STMicroelectronics VIPower™ supports 36V.

Q: Is package change from TO-252-3 (DPAK) to SOT-223 acceptable?

A: Package change requires PCB layout redesign. SOT-223 has different footprint, lead spacing, and thermal characteristics. Thermal performance may differ due to reduced tab size in SOT-223 format. Evaluate thermal requirements for your application before migration.

Q: Which substitute offers the lowest on-resistance?

A: BTS3142DATMA1 (23mOhm typical) in TO-252-3 package and BSP78HUMA1 (35mOhm typical) in SOT-223 package provide the lowest on-resistance among recommended substitutes.

Q: Are all recommended substitutes automotive-grade qualified?

A: BTS3142DATMA1 carries automotive qualification. Infineon HITFET® SOT-223 series (BSP76E6433HUMA1, BSP77E6433HUMA1, BSP78HUMA1, BTS3134NHUMA1) and STMicroelectronics VIPower™ series are ROHS3 compliant and carry industrial-grade qualification. Verify automotive qualification requirements for your specific application.

Q: What is the current rating threshold for selecting between BSP77E6433HUMA1 and BSP78HUMA1?

A: BSP77E6433HUMA1 provides 2.17A maximum output; BSP78HUMA1 provides 3A maximum output. Select based on your circuit's maximum current demand. BSP78HUMA1 offers lower on-resistance (35mOhm vs. 70mOhm) and is preferred for applications requiring higher current or lower power dissipation.

Q: Can VNL5160N3TR-E be used in applications requiring 60V load voltage?

A: No. VNL5160N3TR-E maximum load voltage is 36V. For 60V applications, BTS3142DATMA1 (42V maximum) is the closest active substitute, though it does not fully meet the original 60V specification. Evaluate circuit requirements carefully.

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