BT155W-1200TQ

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Thyristors are a family of solid-state semiconductor devices. They are used in a variety of applications, including power conversion, protection circuit breaker, electronic control, and noise suppression. Within the family of thyristors, the silicon-controlled rectifier, also known as the SCR, is the most popular thyristor family and is the one discussed here.The BT155W-1200TQ is a type of SCR specifically designed for high power switching in rectifying, inverting and chopper applications.

The BT155W-1200TQ is a three-terminal device consisting of a main terminal (anode) and two control terminals (cathode and gate). It has a power rating of 1200V and a blocking current of 155A. It is available in three different packages, the TO-220AB, the buttoned package and the lug package. All BT155W-1200TQ packages are capable of withstanding peak surge currents of up to 600A without damage.

The BT155W-1200TQ SCR functions as a two-channel device, with two gates controlling the flow of current through the main terminal. When no current is flowing, the terminals are ‘open’ and no current flows. When the gates are ‘closed’ with a positive voltage, the current flows from anode to cathode.

The BT155W-1200TQ can be used in a variety of applications including high power conversion, rectification, inverting, and chopper controls. In a rectifying circuit, the BT155W-1200TQ can be used as a switch to control the flow of current, allowing for a more efficient conversion of AC to DC power. It can also be used to convert DC to AC power in inverting applications. The BT155W-1200TQ can also be used in chopper circuits to regulate the power output to a given load.

In all of these applications, the BT155W-1200TQ works based on control of the anode-to-cathode voltage. When the anode-to-cathode voltage is greater than or equal to the breakover voltage of the device, current flows, and power production begins. The amount of current that will flow is determined by the voltage applied to the gate terminals.

The BT155W-1200TQ has a unique ability to be triggered by both positive and negative gate voltages. This allows the device to be used in a variety of applications. When triggered by a positive gate voltage, the device is typically used in a DC-DC converter, a DC-AC invertor, and a chopper control circuit. When triggered by a negative gate voltage, it can be used for AC switching, fast switching, and delay-on triggering applications.

The BT155W-1200TQ is capable of withstanding temperatures up to 175%C. It features a built-in diode that provides over-voltage protection and can be used for switching AC and DC loads. It is also equipped with a logic level control, which allows it to be triggered by micro-controller circuits or logic circuit.

The BT155W-1200TQ is a versatile SCR switch and is useful in many types of applications. It is especially useful in high power applications such as power conversion and motor control. With its high current ratings, and its ability to withstand high temperatures, it is an ideal choice for reliable and cost efficient switching.

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