T435-700H

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Thyristors - TRIACs

TRIAC, (Triode for Alternating Current), also known as bidirectional thyristors with three terminals, are widely used in applications requiring the control of both half-cycles of alternating current. They are a type of semiconductor device capable of controlling high power AC loads based on the performance of SCRs (Silicon Controlled Rectifiers) of the predetermined phase control. Anyways, since TRIACs have three terminals, they can be triggered by both positive and negative gate signals, making them an attractive solution for many applications.

T435-700H is one of the most commonly used TRIACs available in the market. It has a rated gate-trigger voltage of 5V (2V minimum). It is a zero gate-current TRIAC, meaning that it does not require any gate current for its triggering. The T435-700H is suitable for controlling AC loads up to 700V and 16 Amps of current. It is also capable of operating at high frequencies of up to 400Hz. Besides, devices of this type are also housed in 12A molded packages and have maximum rating temperature of 125°C.

The main applications of the T435-700H are geared motor speed control, AC lamp dimmers, heating power control, lighting and fan controllers and power supplies. It is also used in the automotive industry in braking systems, starter interlocks, AC power control systems and similar applications. Aside from their regular applications, these TRIACs are used in a variety of other applications including medical equipment, industrial automation, radio frequency power control, home appliance control and much more.

The working principle of TRIACs is simple. They are designed to conduct in both directions when a voltage is applied to the gate of the device. The amount of current that is allowed through the device is proportionate to the voltage applied to the gate. This makes the T435-700H a great choice for applications that require precision control of an AC load. These devices are also able to operate in zero-crossing mode, meaning that the TRIAC is triggered when the voltage of the AC supply is at its 0 volt position, making them ideal for power factor correction applications.

In conclusion, the T435-700H is a reliable, high-performance TRIAC suitable for a variety of applications requiring the control of alternating current. With its high ratings, zero gate-current requirement and zero-crossing capability, the T435-700H is a great choice for any application where AC power control is required.

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