BT131-800D/L01EP

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BT131-800D/L01EP Application Field and Working Principle

Thyristors - TRIACs are a type of four-layer semiconductor device, consisting of layers of alternating p-type and n-type material, which are mainly used for controlling the current in AC circuits. BT131-800D/L01EP is a three terminal bidirectional TRIAC device, which is developed by STMicroelectronics and provides superior electrical performance and reliability in a compact package. BT131 is mainly used to control AC power in voice Coil Motor (VCM) applications, but also for general purpose switching for AC-DC control, lamps control and heater control.

BT131-800D/L01EP features an ideal passivation layer, with superior electrical and mechanical characteristics, and is characterized by excellent static and dynamic parameters such as low on-state resistance, low gate noise sensitivity and low thermal impedance. It is designed to operate with voltages up to 800V and with current up to 5A.

The working principle of BT131-800D/L01EP is very simple. When the gate terminal is connected to a positive voltage, it begins to conduct, i.e., the thyristor is turned ON. When the gate terminal is connected to a negative voltage, the thyristor turns OFF and will not conduct any current. The BT131-800D/L01EP is primarily a silicon-based TRIAC device, which offers superior electrical and reliability characteristics for AC switching applications.

BT131-800D/L01EP is suitable for very demanding applications, such as motors for domestic appliances, electric tools and industrial plants. The device can switch loads up to 800V and 5A, thus making it a good choice for large motors and load applications. The device is equipped with an integrated back to back diode, which has the capability to absorb transient currents when the motor is switched.

Overall, the BT131-800D/L01EP Triac device is a perfect choice for AC switching applications in high voltage and current environments. It provides superior electrical and mechanical characteristics, making it an ideal option for demanding applications.

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