BT136-800E Definition

The BT136-800E is a widely used four-quadrant triac,designed for AC power control applications.It can efficiently control AC voltages up to 800V with a typical current carrying capacity of 4A (RMS). The TO-220 package makes it an ideal choice for a variety of home appliances, industrial control and lighting applications.

Main Technical Parameters

  • Repetitive off-state voltage (VDRM): 800V
  • On-state root mean square current (IT(RMS)): 4A
  • Gate trigger current (IGT4): ≤25mA
  • Gate trigger voltage (VGT): ≤1V
  • Holding current (IH): typical 7mA
  • Junction temperature range (Tj): -40°C to +125°C
  • Package: standard TO-220C, easy to install heat sink

Working Principle

Triac is essentially a monolithic integrated device consisting of two thyristors connected in reverse parallel. Unlike ordinary thyristors, triac can be triggered to conduct in both the positive and negative half cycles of the alternating current, achieving full-wave control.

Typical Applications

  • Household dimming light switch
  • Electric kettle temperature control
  • Electric fan timing speed control
  • AC load control in industrial equipment
  • MCU control of AC load

Summary

With the development of intelligent control, basic power devices such as BT136-800E still play an important role in the execution layer of IoT terminal devices and are key interface components that convert digital control signals into actual physical actions.

About Semiware
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