BTS442E2BKSA1

Power Distribution Switches, Load Drivers Overview

The BTS442E2BKSA1 is a single-channel smart high-side power switch from Infineon's PROFET series, utilizing Smart SIPMOS technology. It integrates an N-channel vertical power FET with CMOS-compatible control logic and diagnostic feedback. The device operates within a supply voltage range of 4.5 V to 42 V and supports a maximum load current of 21 A. Key electrical parameters include a maximum on-state resistance of 18 mΩ and a current limit of 70 A. It features comprehensive embedded protection mechanisms including overcurrent, short-circuit, overtemperature, overvoltage, and reverse battery protection. The component is housed in a TO-220-5 package and is rated for junction temperatures up to 150°C.

Power Distribution Switches, Load Drivers Feature Summary

• Integrates a vertical power FET with charge pump and diagnostic output for direct microcontroller interfacing
• Provides multi-layer embedded protection against overcurrent, short circuits, thermal overload, and reverse polarity
• Utilizes Smart SIPMOS technology for compact integration of power and logic components

Power Distribution Switches, Load Drivers Applications

• Automotive body control modules and lighting systems
• Industrial motor drives and solenoid actuators
• High-current DC load switching in 12V/24V systems

Power Distribution Switches, Load Drivers Procurement Notes

Verify the specific suffix BKSA1 to confirm the TO-220-5 through-hole package configuration. Confirm RoHS compliance status and automotive qualification requirements such as AEC-Q100 if applicable to the target environment. Ensure the ordering part number matches the exact pinout and thermal characteristics required for the PCB layout design.

Power Distribution Switches, Load Drivers Selection Notes

Select this component for applications requiring high current handling up to 21A with integrated fault protection. It serves as a robust replacement for mechanical relays in resistive, inductive, and capacitive load scenarios. Consider the thermal dissipation capabilities of the TO-220-5 package when designing heat sinks or copper pours for continuous operation at high loads.

Power Distribution Switches, Load Drivers Part Context

This device belongs to the Infineon PROFET family of smart power switches. It is designed to replace traditional discrete solutions and electromechanical relays. The product line emphasizes reliability and system safety through integrated diagnostics and protection features suitable for harsh automotive and industrial environments.

Power Distribution Switches, Load Drivers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.