Key facts
- Brand
- Siemens
- Model
- BTS 442 D2
- Category
- power switch
- Documents
- 2
- Languages
- EN
- Last added
- 2012-04-06
Start here
Siemens BTS 442 D2 Smart Highside Power Switch Datasheet
The BTS 442 D2 is a N‑channel vertical power FET with integrated charge pump and CMOS‑compatible input. It provides built‑in protection functions such as over‑voltage, undervoltage, short‑circuit, reverse‑battery and electrostatic discharge protection, making it suitable for replacing electromechanical relays in 12 V and 24 V DC grounded loads.
The document lists pin assignments, maximum ratings, electrical characteristics, protection functions, diagnostic features, and package dimensions for the TO‑220AB/5 version. It also includes truth tables and schematic references for designers integrating the device into automotive or industrial power‑switch applications.
Siemens BTS 442 D2 specifications
| Operating voltage (Vbb) | 4.5 … 42 V |
|---|---|
| On‑state resistance (RON) | 18 mΩ |
| Maximum load current | 21 A |
| Power dissipation (DC) | 167 W |
| ESD protection capability | 2.0 kV (HBM) |
| Thermal overload trip temperature | 150 °C |
Source: Siemens BTS 442 D2 Smart Highside Power Switch Datasheet
All Siemens BTS 442 D2 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum continuous load current for the BTS 442 D2?
The device can handle up to 21 A of load current as specified in the maximum ratings.
From: Siemens BTS 442 D2 Smart Highside Power Switch Datasheet
What is the on‑state resistance of the BTS 442 D2?
The on‑state resistance (RON) is 18 mΩ at 25 °C.
From: Siemens BTS 442 D2 Smart Highside Power Switch Datasheet