TVB140NSC-L Circuit Protection

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TVB140NSC-L, an integrated overvoltage protection thyristor (TVS), belongs to a family of Thyristor Voltage Suppressors composed of a Thyristor structure connected in parallel with a silicon avalanche diode. It is specially designed to protect circuit from transient overvoltage, so as to protect capacitive type load and helps to avoid destruction induced by voltage spikes.

Thyristors are semiconductor switches that are triggered by an electrical signal and then provide a several stable conducting path to the circuit. They are thus known to be the most reliable and efficient way for controlling power in various applications. The TVB140NSC-L is operated based on a two terminal circuitry consisting of an internal Silicon avalanche diode connected in parallel with a structurally stable Thyristor switch. It utilizes a “Soft Breakover” technique that limits the peak current generated by fast and steep voltage spikes, while controls the propagation delay for the suppression of transients.

The main application field of TVB140NSC-L is built around its ability to protect low voltage lines and low-capacitive-load circuits from electromagnetic inrush and feedback currents induced by lightning. Also, they can act as surge protectors and offer amazing protection from fast transients. Its IPP67-rated package ensures its dust-free and water-resistant construction, thereby making it suitable for wide range of industrial applications.

In terms of working principle, the TVB140NSC-L is extremely simple and efficient. The Thyristor integrated into the device works to limit the voltage and current levels, providing a high-speed response and a stable protection capability. The internal silicon avalanche diode on the other hand works in tandem with the thyristor to control and limit the maximum output voltage and current generated by the device and provide protection from transient spikes.

The device in question here, the TVB140NSC-L is especially designed to provide complete circuit protection against overvoltage condition. It works by allowing current to flow through its conducting channel when a certain applied voltage is detected. After reaching the breakdown voltage level, the thyristor is triggered, and a divert path is created to bypass the current and protect other components in the circuit.

In addition to its surge protection features, the TVB140NSC-L also offers features such as noise filtering, power and voltage overload protection, and ESD protection. It is also highly reliable, with an average reverse leakage current of less than 1uA. Moreover, it has an operating temperature range of -40 to +85°C, making it suitable for use in a wide variety of industrial and commercial applications.

Overall, the TVB140NSC-L is a reliable, cost-effective, and power-efficient way of providing circuit protection from transient overvoltage conditions. Its high speed response and its technological features make it suitable for use in various industrial applications, and its IPP67-rating also makes it resistant to dust and water, thereby increasing its versatility even further.

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