CQ220-8B W/DC SL

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, also known as thyristor power semiconductor modules, are electric switches that are used primarily in power electronic control systems. TRIACs are a special type of thyristors that use a combination of three different junction types and are used to switch alternating current (AC) signals. The CQ220-8B W/DC SL is a transistor-controlled, pulse-width modulated TRIAC that is used in applications such as light dimming, energy metering and industrial motor control.

The CQ220-8B W/DC SL consists of two silicided MOSFETs packaged in a TO-220 style package. It is designed to handle reverse blocking capability of up to 650V, with high frequency switchability and fast current turn-on and turn-off times as low as 20μs. The device has an internal temperature sensor for over-temperature protection and also an over-current and reverse-blocking protection built-in.

The TRIAC has three distinct states: cut-off, on, and blocking. The cut-off state, also known as the "off" state, is when the TRIAC is closed and no current flows. The "on" state is when the TRIAC is open and current flows. The blocking state is when the TRIAC is open and current can not flow. The TRIAC will switch between the three states depending on the trigger voltage applied to it.

The CQ220-8B W/DC SL contains two pairs of semiconductor junctions, the "ANODE," "GATE," and "CATHODE" which are required to turn the device on and off. The ANODE and GATE junctions control the "ON" state. When the ANODE, GATE and CATHODE junctions are forward biased, the TRIAC is turned "ON." When the ANODE junction is forward biased and the GATE is reverse biased, the TRIAC is turned "OFF."

The CQ220-8B W/DC SL is used primarily in a wide range of applications such as dimming lights, controlling energy meters and motors, controlling lamps and heating elements, and many other AC signal applications. The device is also well-suited to applications where a large DC power control is needed as the TRIAC has an exceptionally low internal impedance of just 0.04Ω, giving it fast switching times and low power dissipation.

In summary, the CQ220-8B W/DC SL is a transistor-controlled, pulse-width modulated TRIAC used in a wide variety of AC signal applications. It has an exceptionally low internal impedance of 0.04Ω, making it ideal for applications needing high speed switching, high current control and low power dissipation. It has built-in over-temperature, over-current and reverse-blocking protection making it suitable for even the most demanding applications.

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