The HITFETBTS 941 Smart Lowside Power Switch is a logic level input product with ESD protection, thermal shutdown, overload protection, short circuit protection, overvoltage protection, current limitation, maximum current adjustable with external resistor, current sense, and status feedback with external input resistor.
The BTS 941 is a N‑channel vertical power FET designed for low‑side switching of 12 V and 24 V DC loads. It replaces electromechanical relays and offers integrated protection functions such as over‑voltage, overload, short‑circuit, ESD, and thermal shutdown, making it suitable for resistive, inductive, and capacitive applications.
Key specifications include a 60 V drain‑source voltage rating, 12 A nominal load current, on‑state resistance as low as 31 mΩ at 25 °C, and a power dissipation capability of 149 W. The device also features adjustable current limiting, current sensing, and status feedback via external resistors.
| Drain‑source voltage (Vds) | 60 V |
|---|---|
| Nominal load current | 12 A |
| Power dissipation (Pmax) | 149 W |
| Unclamped single pulse inductive energy | 4000 mJ |
The device is rated for a maximum drain‑source voltage of 60 V.
The nominal load current is 12 A.
It can dissipate up to 149 W under the specified conditions.