TDS4304002DH

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Thyristors - SCRs are semiconductor components designed for use in both digital logic and analogue power control applications. The TDS4304002DH is a leading edge technology, silicone controlled rectifier (SCR) from a series of devices introduced by Texas Instruments. It is also referred to as a "bipolar thyristor", or "controlled rectifier".

The design of the TDS4304002DH includes two series-connected gate terminals and one parallel-connected triggering gate. This design allows it to be triggered by a variety of control stimuli and offers a higher level of circuit protection. The TDS4304002DH is primarily used in applications involving low-voltage, high-frequency switched power supplies and high-voltage applications where a reliable, fast switching is required.

The TDS4304002DH has a highly defined, low current triggering specification which makes it ideal for applications with demanding switching requirements. The gate is designed to be continuously triggered on, meaning that once the switch is turned on it will remain on, even if the trigger is removed. It also features a low input leakage current and a low gate turning current.

The main application field of the TDS4304002DH is as a power control device in switching power supplies, power converters, AC and DC motor control, as well as other adjustable speed drive applications. It can be used for both AC and DC control applications. The device can handle up to 10A and voltages up to 400V.

The working principle of the TDS4304002DH SCR is based on the PNPN connection of two PN junctions which, when triggered, form a low voltage drop and low forward current switch. When a positive voltage is applied to the gate terminal, a depletion layer is formed around the gate terminal and the conducting channel between the two PN junctions is established. This triggers the SCR and current passes between the two PN junctions.

The TDS4304002DH SCR can be used in many different applications, including switch mode power supplies, adjustable speed drives, motor controls, and LED lighting. Its switching capability and low forward current make it the perfect choice for many applications requiring high efficiency, fast response time, and reliability.

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