BT136B-800E

series introduction

# Introduction to the BT136B - 800E Product Series

## 1. Overview
The BT136B - 800E product series represents a cutting - edge line of semiconductor devices that have been engineered to meet the diverse and demanding requirements of modern electrical and electronic applications. These devices are primarily triacs, which are widely used in AC power control circuits due to their ability to control the flow of alternating current effectively.

## 2. Key Features

### 2.1 High Voltage Rating
The "800E" in the product name indicates a significant feature of this series - a high blocking voltage rating of 800 volts. This high voltage capability makes the BT136B - 800E suitable for use in applications where the AC mains voltage can vary or where there are potential voltage spikes. It provides a reliable solution for controlling high - voltage AC loads, ensuring stable operation even in challenging electrical environments.

### 2.2 Low On - State Voltage Drop
These triacs are designed to have a relatively low on - state voltage drop. When the triac is conducting current, a low voltage drop means less power is dissipated as heat. This not only improves the overall efficiency of the circuit but also reduces the need for complex and bulky heat - sinking solutions. As a result, the BT136B - 800E can contribute to more compact and energy - efficient designs.

### 2.3 Sensitive Gate Triggering
The BT136B - 800E series offers sensitive gate triggering characteristics. This means that a relatively small amount of current applied to the gate terminal can trigger the triac into conduction. The sensitive gate allows for easy control of the triac using low - power control signals, such as those generated by microcontrollers or other low - voltage control circuits. It simplifies the design of the control circuitry and enables seamless integration into a wide range of systems.

### 2.4 High Commutation Capability
Commutation is the process of turning off the triac when the AC current crosses zero. The BT136B - 800E has a high commutation capability, which ensures reliable turn - off even under high - current and high - frequency conditions. This feature is crucial for applications where precise control of the AC power is required, such as in motor speed control and lighting dimming circuits.

## 3. Applications

### 3.1 Lighting Control
One of the most common applications of the BT136B - 800E series is in lighting control systems. Whether it's for residential, commercial, or industrial lighting, these triacs can be used to implement dimming functions. By controlling the phase angle of the AC voltage applied to the lighting load, the brightness of the lights can be adjusted smoothly. The high voltage rating and sensitive gate triggering make it an ideal choice for both incandescent and some types of LED lighting applications.

### 3.2 Motor Speed Control
In motor control applications, the BT136B - 800E can be used to regulate the speed of AC motors. By controlling the amount of power delivered to the motor, the speed can be adjusted according to the requirements of the application. This is particularly useful in fans, pumps, and other small - to - medium - sized AC motor - driven equipment. The high commutation capability ensures that the triac can handle the inductive load of the motor and turn off reliably at the appropriate time.

### 3.3 Heating Control
For heating elements in appliances such as electric heaters, ovens, and soldering irons, the BT136B - 800E can be used to control the power output. By adjusting the conduction angle of the triac, the amount of heat generated by the heating element can be

Images for reference

D2PAK SOT404

Datasheets

• BT136B Series E
• PDF 2

Partlist