BT138-800E,127

Triacs are a type of thyristor that are commonly used for controlling electrical power output in medium- to high-power applications. They are semiconductor power control components that are typically used in AC circuits. The BT138-800 need can be used in a variety of applications, such as motor speed control, household appliances, lighting control, and power-supply protection.

A Triac is a bidirectional thyristor device, which acts like two SCRs connected in inverse parallel polarity format. When the anode of one SCR is connected to the cathode of the other SCR, the device is then known as a Triac.

The BT138-800 is a general-purpose Triac designed specifically for AC switching applications. It has an average current transfer ratio (CTR) of 12.2 A/W which makes it suitable for load current control. The BT138-800 also has a gate-trigger voltage range of 8 V-20V, which makes it suitable for operation in low-voltage circuits.

The BT138-800 is a Triac device with a trigger voltage of 8 to 20 volts. It features a high MT2 current handling capacity of up to 800 amps and an MT1 current capacity of up to 700 amps. It also has a fast turn-on time of 1µs and a high holding current of up to 2A. The BT138-800 is a popular choice for AC applications and is often used to provide motor control, power switching, appliance control, and other applications.

The basic premise of how the BT138-800 works is relatively simple. When the gate terminal is triggered with the right amount of current, the Triac is turned on and current flow is established between MT1 and MT2. The voltage across the device is proportional to the amount of current flowing through it. This process can be programmed to provide a specific level of control across the load by adjusting the gate trigger current.

The BT138-800 is a versatile Triac component that can be used in a variety of applications. It can be used for motor control, LED dimming, lamp control, power switching, and power supply protection. It features a high MT2 current capability, fast turn-on time, and a high holding current which makes it suitable for a range of switching and controlling applications.