BT1308W-400D,115

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Thyristors - TRIACs are widely used in a variety of power switching applications. As one of the members of this family, BT1308W-400D,115 is designed to robustly perform various phase control applications such as AC switching, AC Regulation and Motor Control. This part features low turn-on current, negative trigger sensitivity, fast recovery time and high peak power resistance.

The BT1308W-400D,115 belongs to a family of TRIACs, a type of four layer, three terminal solid state switches with low reverse-breakdown and high blocking-voltage capabilities. It is an industrial standard device for strictly controlling AC voltage and power. As a three-terminal semiconductor device, it comprises a main terminal (MT1), a gate control terminal (G), and an auxiliary terminal (MT2). The device can be triggered by either positive or negative pulse applied to the gate terminal depending on the variation and can be used to rapidly switch AC voltage sources.

The BT1308W-400D,115 operates in both the main thyristor mode and the triac mode. When gated positively, the device is turned on until it disperses the current flow to MT2. If the gate is driven negatively, reversible power-switching action is applied independently of polarity, triggered at the MT2 breakover. In terms of application field, this TRIAC makes possible power control in consumer and industrial electronic applications such as AC tight voltage control, electronic ballasts, and eliminating low frequency power line noise.

In terms of its working principle, BT1308W-400D,115 has been designed in a way that it can switch the current by utilizing two reverse-biased PN junctions. When a negative (or positive) sequence of pulses is applied to the gate terminal, the current starts flowing through the main terminal and this current causes positive (or negative) voltage to be applied to the auxiliary terminal. Depending on the polarity and fixed trigger level, the TRIAC is turned off, ensuring stable operation. The circuit has a diac, which acts as a current steering device and helps to control the flow of the current.

In addition, the BT1308W-400D,115 also comes with advanced protective features. These include surge immunity, overvoltage, overcurrent and over-temperature protection. This makes it suitable for a wide variety of applications across various industries such as automotive and industrial.

All these features makes the BT1308W-400D,115 an ideal choice for many power control applications. Due to its high power and efficiency, it is used to switch AC voltages in applications such as AC regulation, motor control and AC switching. This TRIAC has become the industry standard for providing robust, accurate and reliable performance in various phase control applications.

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