The BTA/BTB10 series is a type of triac suitable for general purpose AC switching. It can be used as an ON/OFF function in applications such as static relays, heating regulation, induction motor starting circuits, or for phase control operation in light dimmers, motor speed controllers, etc. The snubberless version (W suffix) is specially recommended for use on inductive loads, thanks to their high commutation performances.
The BTA/BTB10 series includes standard and snubberless 10 A TRIACs for general‑purpose AC switching, suitable for static relays, heating regulation, induction motor starting, light dimmers and motor speed control. The snubberless version (W suffix) is recommended for inductive loads because of its high commutation performance.
The document lists key electrical ratings (600 V or 800 V voltage, 10 A RMS on‑state current, 105 A surge peak), thermal resistances, mechanical dimensions of the TO‑220AB package, and ordering information. A disclaimer notes that STMicroelectronics assumes no liability for the use of the data.
| On‑state RMS current | 10 A |
|---|---|
| Thermal resistance case‑to‑ambient | 60 °C/W |
| Package type | TO‑220AB (plastic) |
The series is offered in standard and snubberless versions, the latter being suited for inductive loads.
The TRIACs are rated for a continuous on‑state RMS current of 10 A.