BZT03C270-TAP Circuit Protection

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TVS - Diodes

TVS - diodes are components designed to protect sensitive electronic equipment from dangerous voltage and current surges. They control the amount of power that can flow through a circuit to protect against power surges that would otherwise damage circuits and components. The BZT03C270-TAP device is an example of a TVS diode that is designed to protect against damaging power surges in automotive applications.

BZT03C270-TAP

The BZT03C270-TAP is a three-terminal unidirectional diode designed to protect sensitive automotive components from high-voltage transients, under-voltage conditions and current surges. It is made of two p-n layers that provide very low on resistance and fast clamping speed when triggered. The device is designed to withstand events as high as 2700 watts peak pulse power per line (tp) while withstanding dynamic surges up to 900 watts peak power per line (tpl). It delivers excellent clamping capability and long-term reliability in a variety of automotive applications.

Application Field

The BZT03C270-TAP is designed for automotive applications, which typically require protection from 12 to 24V DC input. It is well suited for use in dashboards, power windows, electric door locks, driver power seats, power mirrors, entertainment systems, and other ancillary automotive equipment. In particular, it can be used to protect equipment from the danger of disconnects due to a fault in the supply system.

Working Principle

The BZT03C270-TAP working principle utilizes the two p-n layers in a diode to function. When a surge or overvoltage is applied, the diode triggers and the advanced circuitry in the devices offers the instant clamping of the signal voltage. The two p-n layers are connected in series to provide superior clamping capability. When the voltage on the diode increases to the breakdown or “avalanche” voltage, the current rises and the voltage is clamped and dissipated as heat across its terminals. This prevents the voltage from reaching a dangerous level, protecting any electronic equipment connected to it.

Conclusion

The BZT03C270-TAP is a robust unidirectional diode designed to protect automotive components from high voltage transients and current surges. It utilizes two p-n layers to provide very low on resistance and fast clamping speed, making it ideal for high power surge protection. Its long-term reliability makes it a suitable choice for automotive applications that require 12 to 24V DC protection.

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