BTS555 E3146

BTS555 E3146 – 128A High-Side Power Switch – Infineon Technologies
The BTS555 E3146 from Infineon Technologies is a robust high-side power switch designed for demanding load management applications. Part of the PROFET® series, this power distribution IC delivers exceptional 128A current handling with integrated protection features, ensuring reliable operation in harsh environments. PCX supplies this industrial-grade component with guaranteed stock availability and expedited shipping.

Key Features

Current Output: 128A maximum load capacity
Voltage Range: 5V to 34V load operation
Ultra-Low Resistance: 1.9mΩ typical Rds On
Fault Protection: Current limiting, open load detection, over-temperature & over-voltage
High-Temp Operation: -40°C to +150°C (TJ) range
Interface: Simple On/Off control with non-inverting input

Technical Details
This single-channel (1:1) power switch features an N-Channel high-side output configuration in a TO-218-5 through-hole package (Supplier Device Package: TO-218AB/5). Operating without external Vcc/Vdd requirements, it utilizes a straightforward On/Off interface for easy integration. The device’s optimized thermal design supports continuous high-current applications.

Typical Applications

Automotive power distribution systems
Industrial motor controllers
Heavy-duty relay/solenoid drivers
Power supply load switching
Battery management protection circuits

About Infineon Technologies
Infineon Technologies stands at the forefront of semiconductor innovation, with global recognition for automotive and industrial power solutions. Their PROFET® series exemplifies cutting-edge design, combining high efficiency with robust protection mechanisms trusted by engineers worldwide.
With decades of expertise in power management ICs, Infineon maintains rigorous quality standards and continuous technological advancement. Their components deliver proven reliability in mission-critical systems, from vehicle electrification to factory automation.

About Power Distribution Switches
Power distribution switches and load drivers serve as intelligent gatekeepers for electrical systems, enabling safe control of high-current loads. These ICs replace mechanical relays with solid-state precision, offering faster response times and integrated diagnostics while reducing system footprint.
In automotive and industrial environments, these components prevent catastrophic failures by monitoring current flow, temperature, and fault conditions. Their high-side configuration simplifies circuit design by eliminating ground path disruptions, making them essential for modern power management architectures.

Packaging
Available in manufacturer Tube packaging. Note: This product is marked obsolete by the manufacturer but remains available at PCX while