BTS428L2XT Equivalent & Substitute Parts

Part Overview

The BTS428L2XT is a Power Management Integrated Circuit (PMIC) manufactured by Infineon Technologies, classified as a Power Switch/Driver with 1:1 N-Channel configuration. This component functions as a high-side N-channel power switch with integrated status flag and comprehensive fault protection including current limiting, over-temperature, and over-voltage protection. The device is rated for automotive applications and holds AEC-Q100 qualification.

The BTS428L2XT has reached obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for systems utilizing this component.

Substiute Parts

BTS428L2XT

Infineon TechnologiesIn Stock: 860BTS428L2XT Datasheet

Current PartRFQ

BTS428L2ATMA1

Infineon TechnologiesIn Stock: 2912BTS428L2ATMA1 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BTS428L2XT is determined by strict equivalence across the following critical parameters:

Electrical specifications must match exactly: 1:1 input-to-output ratio, high-side N-channel output configuration, 4.75V to 41V load voltage range, 5.8A maximum output current, and 50mOhm typical on-resistance. The interface type (On/Off, non-inverting) and input signal characteristics must remain identical.

Functional features must be preserved: status flag output and fault protection mechanisms (current limiting, over-temperature, over-voltage protection) are mandatory for system compatibility.

Mechanical compatibility requires identical package type (TO-252-5, DPAK with 4 leads plus tab) and surface mount mounting configuration to ensure PCB layout compatibility without redesign.

Environmental and qualification requirements must be maintained: automotive-grade classification and AEC-Q100 qualification are specified for this application.

The substitute part BTS428L2ATMA1 meets all these criteria while offering improved product status (Active vs. Obsolete) and enhanced supply availability.

Parameter Comparison

Engineering Selection Recommendations

The BTS428L2ATMA1 is the direct parametric equivalent for the obsolete BTS428L2XT. All electrical, mechanical, and functional specifications are identical across the critical parameters that determine component substitutability.

The primary advantage of selecting BTS428L2ATMA1 is its Active product status, which ensures long-term supply chain availability and ongoing manufacturer support. The substitute part carries ROHS3 compliance certification, meeting current environmental regulatory requirements.

Both components maintain automotive-grade classification and AEC-Q100 qualification, preserving system-level compliance requirements. The identical package configuration (TO-252-5, DPAK) and surface mount mounting type eliminate the need for PCB redesign or layout modification.

For new designs or production continuation, BTS428L2ATMA1 is the appropriate selection. For legacy system support where BTS428L2XT inventory exists, cross-compatibility is confirmed at the functional and mechanical level.

Frequently Asked Questions (FAQ)

Q: Can BTS428L2ATMA1 be used as a direct replacement for BTS428L2XT without circuit modification?

A: Yes. The substitute part is parametrically equivalent across all electrical specifications, fault protection features, and operating characteristics. No circuit redesign is required. The identical package type and pin configuration ensure direct PCB compatibility.

Q: Are there differences in reliability or qualification between these parts?

A: Both components hold automotive-grade classification and AEC-Q100 qualification. The BTS428L2ATMA1 additionally carries ROHS3 compliance certification. No reliability differences exist based on the provided specifications.

Q: What is the primary reason to transition from BTS428L2XT to BTS428L2ATMA1?

A: The BTS428L2XT has reached obsolete status, limiting future availability. The BTS428L2ATMA1 maintains Active product status with significantly higher inventory levels (2825 Pcs vs. 770 Pcs), ensuring supply continuity for ongoing production and future orders.

Q: Are the packaging and mounting configurations identical?

A: Yes. Both components use TO-252-5 package type (DPAK with 4 leads plus tab) and surface mount mounting configuration. No PCB layout changes are necessary for substitution.

Q: Does the BTS428L2ATMA1 belong to a specific product family or series?

A: The BTS428L2ATMA1 is part of the PROFET® series from Infineon Technologies, which encompasses automotive-grade power switch and driver products with integrated protection features.

Q: What is the difference between the supplier device packages listed for each part?

A: The BTS428L2XT uses supplier device package PG-TO252-5-11, while the BTS428L2ATMA1 uses PG-TO252-5-1. Both designations refer to the same physical TO-252-5 package configuration with identical pin assignments and mechanical dimensions.