This document describes the features of PROFET BTS 442 E2 semiconductor, including overload protection, current limitation, short-circuit protection, thermal shutdown, etc.
The Siemens BTS 442 E2 is a smart high‑side power switch designed for 12 V and 24 V DC grounded loads. It integrates over‑voltage, undervoltage, short‑circuit, reverse‑battery and load‑dump protection, and provides diagnostic feedback via an open‑drain output.
The document lists pin functions, maximum ratings, electrical characteristics, protection functions, diagnostic features, and package dimensions for the TO‑220AB/5 package, enabling designers to select and implement the device in various applications.
| Operating voltage | 4.5 – 42 V |
|---|---|
| On‑state resistance (RON) | 18 mΩ |
| Power dissipation (DC) | 167 W |
| Thermal resistance (chip‑case) | < 0.75 K/W |
The on‑state resistance (R ON) is 18 mΩ.
It is supplied in a standard TO‑220AB/5 package.