BTA445Z-800BTQ

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 one of the most common and versatile components used in power electronics. They are devices that can be used to control the flow of electrical current at a given time. A TRIAC (triode for alternating current) is a type of thyristor that can be used to control the direction of current flow in an alternating current (AC) circuit. The BTA445Z-800BTQ is an example of a TRIAC that has a number of applications and an interesting working principle.

The BTA445Z-800BTQ is constructed of two symmetrical npn-pairs and an extra p-type layer between the n-type layers. This makes it suitable for use in AC systems, as it can alternately switch to the on and off states with each half-cycle of the input. The device requires a trigger voltage to initiate the conduction process and operates in the quadrants of the AC cycle.

The BTA445Z-800BTQ can be used for many different applications, including phase control, capacitive electronic ballast, AC motor control, power supply, light dimming, and fluorescent lamp operation. It is also used in heat control and lightning protection circuits. One of the most noteworthy applications of the BTA445Z-800BTQ is its use in zero-crossing detection circuits, which can be used to detect the zero crossing of an AC voltage and as a base for phase control.

When operating in phase control mode, the BTA445Z-800BTQ is used to control the load voltage that is delivered to the AC load. This is done by varying the firing angle of the TRIA, which in turn varies the conduction time of the device. The BTA445Z-800BTQ offers good switching performance and an insulated package, which makes it suitable for high voltage applications. The device has a maximum peak on-state current of 800A and an off-state current of 1mA.

The working principle of the BTA445Z-800BTQ is very straightforward. The device is triggered when the applied voltage reaches a minimum, which causes a current to flow from the gate to the main terminals. This current causes the TRIAC to switch on and it will stay on until the current drops below a certain level. At this point, the TRIAC will switch off and will stay off until the current is again triggered by the applied voltage.

In summary, the BTA445Z-800BTQ is a type of TRIAC that can be used to control the direction of current flow in an AC circuit. It is suitable for a variety of applications, most notably phase control, and has a maximum peak on-state current of 800A. The device requires a trigger voltage to initiate the conduction process, and its working principle is very straightforward. The BTA445Z-800BTQ is a simple yet effective device that can be used to control power and current in a variety of applications.

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