BT136B-600E,118

Thyristors - TRIACs are commonly used in alternating current (AC) circuits, and are compromised of three terminals such as BT136B-600E, 118. They are mainly used in applications where AC current needs to be rapidly switched on, or off. The principles of the Thyristors - TRIACs are the same as their predecessors, however, the TRIACs are designed to conduct both directions of the current.

The TRIACs are initially turned off, and remain so until a current or voltage passes through the gate terminal. When the gate threshold level is reached, the TRIACs will begin to conduct current. As the voltage ramps up, so does the current, up to a given peak current. This process happens during both halves of the AC wave.

TRIACs can be used in various applications. They are widely used to control motor speed by changing the gate pulse width, a technique known as pulse width modulation (PWM). TRIACs are also widely used in the world of dimming technology, where they are used to control the current flow to dim an LED or filament-based bulb. This process is mainly used in hotels, theatres and photography studios, as well as in the film industry.

Many households also use TRIACs, mostly in AC/DC converters, where they help to reduce current and voltage spikes. TRIACs are also used in industrial circuits, used to drive motors and provide current to large swathes of a production line.

The BT136B-600E, 118, is a widespread example used in many industrial and household applications. This particular TRIACs has a maximum rated current of 600 volts, a gate trigger current of 4mA and a maximum on-state current at 800A. Valuable protection against over current is provided via the TRIACs, helping to protect other electrical components and preventing them from sustaining any damage.

In conclusion, TRIACs are special types of thyristors which are found in many AC circuits. They are extremely easy to use, and are used in a variety of applications from from dimming lights or motors, to providing protection in AC/DC converters. The BT136B-600E, 118, is a specific type used in many circuits for its impressive current capabilities, and protection functions.