CTB12-1200BW

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Thyristors are a type of semiconductor device mostly used in AC power control applications. The Thyristor family includes TRIACs, which are bidirectional devices ideal for AC applications. The CTB12-1200BW is a TRIAC specifically designed to control mains AC power, providing help for applications such as temperature control, fan control and motor speed control. In this article, we’ll look at the CTB12-1200BW’s application field and working principle.

One of the key applications for the CTB12-1200BW is AC power control. It can be used to control the on/off state and the brightness of lights, air-conditioning and other mains AC appliances. It can also be used in a range of motor speed control applications such as drill presses, lathes, electric fans, and grinders. The device is also capable of handling the high current required for the applications and is designed for use with a wide range of AC voltages.

The CTB12-1200BW is a three-terminal TRIAC, forming the basis of its bidirectional control of AC power. The three terminals are known as the gate, main terminal 1, and main terminal 2. The gate terminal is used to turn the TRIAC on and off, depending on the signal applied to it. Main terminals 1 and 2 are the AC power terminals, with terminal 1 commonly referred to as the MT1 terminal, and terminal 2 as the MT2 terminal.

When no gate signal is present, the TRIAC is in its off state, meaning no current can flow through it. When the gate signal is triggered, the TRIAC is switched on and current can flow through it. Control of the current flowing through the TRIAC is maintained by adjusting the gate signal pulse width. A longer pulse width will result in more current being allowed to flow through the TRIAC.

The current flow in the TRIAC is bidirectional, meaning current can flow in either direction based on the load connected to the main terminals. This also means that the main terminals can be connected to both an AC power source and an AC load. In order to ensure that the correct current flows through the TRIAC, the gate signal should always be connected to the MT1 terminal, otherwise it may cause short-circuit or a fire.

The CTB12-1200BW is designed for use in medium-voltage AC applications, with a maximum peak repetitive off-state voltage of 1200V. It is capable of switching currents up to 12A in these applications, meaning it can handle most residential AC applications as well as industrial applications.

In conclusion, the CTB12-1200BW is a 400V rated TRIAC specifically designed for AC power control applications. It is capable of controlling the on/off state and the brightness of lights, air-conditioning and other mains AC appliances, as well as motor speed control applications. The device has three terminals - the gate, MT1 and MT2 - with the gate signal used to control the current flow through the TRIAC. The CTB12-1200BW is designed for use in medium-voltage AC applications, with a maximum peak repetitive off-state voltage of 1200V and a current rating of 12A.

The specific data is subject to PDF, and the above content is for reference