AUIPS1031 Equivalent & Substitute Parts

Part Overview

The AUIPS1031 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 and delivers up to 9.5A output current in a TO-220-3 through-hole package. The AUIPS1031 is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. Substitute parts maintain core functional characteristics while offering improved availability and modern packaging options.

Substiute Parts

AUIPS1031

Infineon TechnologiesIn Stock: 689251AUIPS1031 Datasheet

Current PartRFQ

BTS118DATMA1

Infineon TechnologiesIn Stock: 2092BTS118DATMA1 Datasheet

MFR RecommendedRFQ

BTS134DATMA1

Infineon TechnologiesIn Stock: 10444BTS134DATMA1 Datasheet

MFR RecommendedRFQ

BTS142DATMA1

Infineon TechnologiesIn Stock: 2030BTS142DATMA1 Datasheet

MFR RecommendedRFQ

BTS3028SDLATMA1

Infineon TechnologiesIn Stock: 16422BTS3028SDLATMA1 Datasheet

MFR RecommendedRFQ

BTS3104SDLATMA1

Infineon TechnologiesIn Stock: 10144BTS3104SDLATMA1 Datasheet

MFR RecommendedRFQ

BTS3118DATMA1

Infineon TechnologiesIn Stock: 12453BTS3118DATMA1 Datasheet

MFR RecommendedRFQ

BTS3142DATMA1

Infineon TechnologiesIn Stock: 3567BTS3142DATMA1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AUIPS1031 are selected based on the following electrical and mechanical compatibility criteria:

Core Substitution Parameters:

• Output configuration: Low side, N-Channel, 1:1 input-to-output ratio
• Interface type: On/Off control
• Input type: Non-inverting
• Operating temperature range: -40°C to 150°C (TJ)
• Fault protection: Current limiting and over-temperature protection
• Manufacturer: Infineon Technologies

Acceptable Variations:

• Output current rating: 2A to 5A (lower current ratings acceptable for reduced-load applications)
• Load voltage rating: 42V to 60V (higher voltage ratings acceptable)
• Rds On: 23mOhm to 104mOhm (variation acceptable based on application requirements)
• Package type: TO-252-3 surface mount (functional equivalent to TO-220-3 through-hole)
• Product status: Active (preferred over obsolete)

All substitute parts maintain the same switching topology, protection features, and automotive-grade qualification (AEC-Q100 or equivalent compliance).

Parameter Comparison

Engineering Selection Recommendations

For Direct Functional Replacement: BTS3028SDLATMA1 and BTS3142DATMA1 provide the closest electrical performance match to the AUIPS1031, with output current ratings of 5A and 4.6A respectively, supporting the majority of applications originally designed for the 9.5A AUIPS1031. Both devices are active products with AEC-Q100 automotive qualification and RoHS3 compliance.

For Lower Current Applications: BTS134DATMA1 (3.5A) and BTS118DATMA1 (2.4A) are suitable for applications requiring reduced output current. BTS3104SDLATMA1 (2A) accommodates minimal current requirements with the highest load voltage rating (60V).

Packaging Considerations: All substitute parts use TO-252-3 surface-mount packaging, requiring PCB layout modifications from the original through-hole TO-220-3 design. Surface-mount packages offer improved thermal performance and reduced board space.

Compliance and Availability: All substitute parts maintain Infineon Technologies manufacturing, automotive-grade qualification, and active product status, ensuring long-term availability and supply chain stability compared to the obsolete AUIPS1031.

Frequently Asked Questions (FAQ)

Q: Can BTS3028SDLATMA1 directly replace AUIPS1031 in existing designs? A: BTS3028SDLATMA1 provides functional equivalence for switching topology and protection features. However, the output current rating is 5A versus 9.5A for AUIPS1031. Applications requiring the full 9.5A capability must use multiple devices or select alternative solutions. PCB layout changes are required due to TO-252-3 surface-mount packaging versus TO-220-3 through-hole.

Q: What is the difference between BTS142DATMA1 and BTS3142DATMA1? A: Both devices share identical electrical specifications (4.6A output current, 42V load voltage, 23mOhm Rds On). BTS142DATMA1 is packaged in Tape & Reel format, while BTS3142DATMA1 is also Tape & Reel packaged. Selection depends on packaging and inventory requirements.

Q: Are all substitute parts automotive-grade? A: Yes. All substitute parts listed are Infineon HITFET® series devices with AEC-Q100 automotive qualification and RoHS3 compliance, maintaining the automotive-grade status of the original AUIPS1031.

Q: What load voltage should I select for my application? A: Select a substitute part with load voltage rating equal to or greater than your application requirement. AUIPS1031 supports 36V maximum. Substitute parts offer 42V or 60V ratings. For 36V applications, any substitute part is acceptable. For higher voltage requirements, select BTS3028SDLATMA1 or BTS3104SDLATMA1 (60V rating).

Q: How does Rds On affect device selection? A: Rds On (on-resistance) determines power dissipation and thermal performance. Lower Rds On values (23mOhm in BTS142DATMA1, BTS3142DATMA1) reduce heat generation. Higher values (104mOhm in BTS3104SDLATMA1) increase dissipation. Select based on thermal budget and current requirements of your application.

Q: What packaging changes are required when switching from AUIPS1031 to TO-252-3 substitutes? A: TO-252-3 (DPAK) surface-mount packages require PCB footprint redesign, solder reflow processing, and thermal management considerations. Through-hole TO-220-3 mounting is replaced with surface-mount soldering. Thermal pad contact area differs between package types.