BTS442E2 E3043

Power Distribution Switches, Load Drivers Overview

The BTS442E2 E3043 is a PROFET® smart high-side power switch from Infineon Technologies, designed for automotive and industrial applications. It integrates an N-channel vertical power FET with CMOS-compatible control logic in a single package. The device supports load voltages between 4.5 V and 42 V, delivering a maximum continuous load current of 21 A. Key electrical parameters include a maximum on-state resistance of 18 mΩ at Tj = 150°C and a peak current limit of 70 A. It operates within a junction temperature range of -40°C to +150°C and features comprehensive protection mechanisms including overcurrent, short-circuit, thermal shutdown, and reverse battery protection.

Power Distribution Switches, Load Drivers Feature Summary

• Integrates Smart SIPMOS® technology combining power FET and control logic
• Provides open-drain diagnostic output for status monitoring
• Includes built-in charge pump for high-side switching capability

Power Distribution Switches, Load Drivers Applications

• Automotive body control modules
• Industrial motor drives
• Power distribution systems

Power Distribution Switches, Load Drivers Procurement Notes

Verify the specific suffix E3043 against official documentation to confirm pinout and packaging details. Ensure compatibility with system voltage requirements up to 42 V. Confirm that the TO-220-5 or TO-263 package variant matches the design constraints. Check for any recent lifecycle notices as product availability may vary by region.

Power Distribution Switches, Load Drivers Selection Notes

Select this component when a robust high-side switch is required for 12V or 24V DC loads. It serves as a direct replacement for mechanical relays in resistive, inductive, and capacitive load scenarios. Consider its integrated protection features for simplified circuit design and enhanced system reliability in harsh environments.

Power Distribution Switches, Load Drivers Part Context

This part belongs to Infineon's PROFET® family of intelligent power switches. These devices are engineered to replace traditional discrete solutions and electromechanical relays. The series emphasizes high reliability and functional safety for critical automotive and industrial applications.

Power Distribution Switches, Load Drivers Replacement Considerations

Consult official Infineon cross-reference guides for verified substitutes. Ensure any alternative maintains compatible voltage ratings, current handling capabilities, and diagnostic interface specifications.