The BT131 is TRIAC with 1 A maximum terminal current. The gate threshold voltage of the BT131 is also very less so can be driven by digital circuits.
Since TRIACs are bi-directional switching devices they are commonly used for switching AC applications. To switch off control of an AC load that consumes less than 3A with a digital device like a microcontroller or microprocessor then BT131 is the best choice.
Pin Configuration:
- Main Terminal 1 (Pin 1) : Connected to Phase or neutral of AC mains
- Main Terminal 2 (Pin 2) : Connected to Phase or neutral of AC mains
- Gate (Pin 3) : Used to trigger the SCR.
Features:-
- It has a highly sensitive gate
- It is suitable for uses in mains appliance control
- BT131 is a 1 amp which can be used as like switch for your home electric appliance which is of 1.5 V operated We can use it to control the switch of your fan, led light.
Limitation:-
- Commutation is not required in AC switching circuits because the TRIAC will not latch on the state since the AC voltage reaches zero for every half cycle.
Applications:-
- AC Light dimmers
- Strode lights
- AC motor speed control
- Noise coupling circuits
- Controlling AC loads using MCU/MPU
- Ac/DC Power control
- Light dimmers
- Washing machines
- Motor control
- Hand tools
