BTS840S2 Equivalent & Substitute Parts

Part Overview

The BTS840S2 is a Power Switch/Driver IC from Infineon Technologies' PROFET® series, designed for high-side N-channel switching applications. This component operates across a load voltage range of 5V to 34V with a maximum output current of 11A and an on-resistance of 27mOhm typical. The device integrates comprehensive fault protection including current limiting, open load detection, over-temperature, and over-voltage protection, making it suitable for general-purpose power switching applications.

The BTS840S2 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production requirements for systems utilizing this component.

Substiute Parts

BTS840S2

Infineon TechnologiesIn Stock: 19147BTS840S2 Datasheet

Current PartRFQ

BTS50162EKAXUMA1

Infineon TechnologiesIn Stock: 5121BTS50162EKAXUMA1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BTS840S2 is evaluated based on the following critical parameters that define functional equivalence:

Core Functional Parameters:

• Output configuration (High Side)
• Output type (N-Channel)
• Number of outputs (2)
• Input:Output ratio (1:1)
• Interface type (On/Off)
• Input type (Non-Inverting)

Electrical Operating Range:

• Load voltage compatibility
• Maximum output current capability
• On-resistance characteristics
• Operating temperature range

Protection Features:

• Current limiting capability
• Open load detection
• Over-temperature protection
• Over-voltage protection

Physical & Manufacturing Specifications:

• Mounting type (Surface Mount)
• Package compatibility
• Supplier device package designation

The BTS50162EKAXUMA1 qualifies as a manufacturer-recommended substitute. While it operates at a reduced maximum output current (6A versus 11A) and narrower load voltage range (5V ~ 28V versus 5V ~ 34V), it maintains functional equivalence in output configuration, topology, protection features, and operating temperature range. The substitute is from the same manufacturer series and is currently in active production status.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The BTS840S2 is obsolete, making the BTS50162EKAXUMA1 the manufacturer-recommended active alternative. The substitute is in current production with established supply chain availability.

Compliance & Certification: The BTS50162EKAXUMA1 achieves ROHS3 compliance, whereas the BTS840S2 is RoHS non-compliant. For applications subject to RoHS regulations, the substitute provides regulatory alignment. Both components maintain REACH Unaffected status and EAR99 ECCN classification.

Automotive Grade Qualification: The BTS50162EKAXUMA1 carries automotive-grade qualification, indicating enhanced reliability and quality assurance standards. This qualification is relevant for applications requiring automotive-level component reliability.

Electrical Performance Trade-offs: Selection between these parts depends on application current and voltage requirements. The BTS840S2 supports higher maximum output current (11A) and extended load voltage range (up to 34V). The BTS50162EKAXUMA1 operates at 6A maximum and 28V maximum load voltage. Applications requiring currents exceeding 6A or load voltages above 28V cannot use the substitute without circuit redesign.

Package Consideration: The BTS840S2 uses a 20-pin PowerSOIC package, while the BTS50162EKAXUMA1 uses a 14-pin SOIC package with exposed pad. PCB layout modifications are required for substitution due to different pin counts and package footprints.

Frequently Asked Questions (FAQ)

Q: Can the BTS50162EKAXUMA1 directly replace the BTS840S2 without circuit modifications?

A: Direct pin-for-pin replacement is not possible due to different package types (20-PowerSOIC versus 14-SOIC) and pin counts. PCB layout redesign is required. Additionally, the reduced current rating (6A versus 11A) and lower maximum load voltage (28V versus 34V) must be evaluated against application requirements.

Q: What are the key differences in electrical performance?

A: The primary differences are maximum output current (11A reduced to 6A) and load voltage range (5V~34V reduced to 5V~28V). On-resistance values are comparable (27mOhm versus 28mOhm typical). The substitute lacks over-voltage protection, retaining only current limiting, open load detection, and over-temperature protection.

Q: Is the BTS50162EKAXUMA1 suitable for automotive applications?

A: Yes, the BTS50162EKAXUMA1 carries automotive-grade qualification. The BTS840S2 does not specify automotive grading.

Q: What is the impact of RoHS compliance differences?

A: The BTS50162EKAXUMA1 is ROHS3 compliant, while the BTS840S2 is RoHS non-compliant. For applications subject to RoHS directives or customer requirements, the substitute provides regulatory compliance. The BTS840S2 may be restricted in certain markets or applications.

Q: Are there packaging considerations for PCB assembly?

A: Yes. The BTS840S2 uses a 20-pin PowerSOIC package (11.00mm width), while the BTS50162EKAXUMA1 uses a 14-pin SOIC package (3.90mm width) with exposed pad. Different footprints, thermal characteristics, and assembly processes apply. The substitute's smaller package may offer space advantages but requires thermal management evaluation.

Q: What protection features are retained in the substitute?

A: The BTS50162EKAXUMA1 retains current limiting (fixed), open load detection, and over-temperature protection. Over-voltage protection present in the BTS840S2 is not specified for the substitute.