CDLL5280B

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Application Field

The CDLL5280B is a Zener single phase device from Diodes Incorporated. This device is designed for high current overvoltage protection when used in a Circuit Breaker application. The device has a voltage ranging up to 45V and a current up to 100A. It is used for overvoltage protection mainly in circuits with relatively low frequency switching such as AC power lines, or AC/DC converter circuits.

Working Principle

The CDLL5280B Zener Diode is a single phase device with a built-in reverse parallel switch which prevents current overload and overvoltage damage. The device is designed to be used as a last resort against excess voltage, thus acting as a clamping device. The Zener Diode begins to avalanche at a given voltage level. This avalanche creates a reverse-biased current that is sufficient to keep the voltage over the lead constant until the voltage is reduced. When the voltage drops, the current is no longer required and the device returns to its initial state.

The CDLL5280B has various protection features, such as the ability to withstand high surge currents and reverse polarity protection. It also has a reverse parallel switch which prevents any current overload. This feature ensures that the device is able to safely contain the excess voltage and not be damaged.

The CDLL5280B also has an integrated thermal protection feature. This minimizes breakdowns due to operating temperature increase and provides self-regulation to quench excessive current. It also helps in maintaining a high value to voltage coefficient which helps in protecting components from overvoltage damage.

The CDLL5280B is a great choice for applications where a single phase device with high current overvoltage protection is required. The device is easy to install and operate, and requires minimal maintenance and upkeep. With its robust protection features, the CDLL5280B is an ideal choice for various overvoltage protection applications.

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