T435-800B-TR Discrete Semiconductor Products

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Thyristors - TRIACs

The T435-800B-TR is a TRIAC (Triode for Alternating Current) in the Thyristor family of components, used to control the flow of electricity. It features high blocking voltage and low gate trigger power and is applicable for AC switching applications, general-purpose use and for triggering and controlling various types of loads.

The power handling capabilities of T435-800B-TR make it ideal for heating and lighting control. Common uses are found in residential and commercial dimmers, thermostat controls, fan speed control, motor control, power supplies, and various other types of applications.

The T435-800B-TR consists of two anti-parallel thyristors connected in series, enabling it to switch both halves of the AC waveform. This makes the T435-800B-TR an excellent choice for applications requiring high load power and accurate control. The T435-800B-TR also features an integrated resistor to reduce the turn-on noise caused by the gate current.

The most basic working principle of the T435-800B-TR is the use of current flow through one of two thyristors to turn on the other thyristor. This is achieved by using the gate signal to trigger the thyristor, allowing current to flow through it. When the voltage is high enough across both thyristors, the triac will turn on, allowing energy to pass both ways through the device and thus switching AC loads. The voltage needed to trigger this \'fire\' can be supplied externally or internally through the use of an integrated resistor.

In conclusion, the T435-800B-TR is a highly efficient and reliable device suitable for a variety of AC switching applications, including lighting and heating control, as well as other general-purpose uses. It features a low trigger loss and high power handling capabilities, making it a great choice for any application needing to accurately control the current flow. Its integrated resistor greatly reduces turn-on noise, ensuring smooth and reliable operation.

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