BZW04-299BHR0G

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TVS – Diodes are used to provide protection to sensitive electronic circuits against high pulse current threats like electrostatic discharge (ESD) and lightning. The BZW04-299BHR0G is an surge protective diode for SMD mounting, and is designed to protect components and systems against transient overvoltage peaks with its low leakage currents.

Application Fields: BZW04-299BHR0G is mainly used in automotive, consumer, industrial, medical and telecommunication applications.It provides an unparalleled level of protection AC and DC circuits, for example in the power supplies of IGBTs, as well as solid state relays, and voltage regulators. Therefore it is suitable for low power applications with a pulse peak power of up to 200W.

Working Principle:The BZW04-299BHR0G has a silicon diode bonding structure and contains two Zener segments. When the voltage is lower than the breakdown voltage of the Zener channel, the diode exhibits a low resistance State, offering protection against strong ESD pulses or other over-voltage condition. As soon as an over-voltage pulse occurs, the diode fast switches to a high resistance state operating as a voltage limiter. The solid structure the device uses, ensures it will not create any FOD (Failures on Demand) and allows for improved thermal performance for heavy duty uses.

The BZW04-299BHR0G is a reliable protector against voltage pulses and catastrophic catastrophic events. Its small package size allows for an easy mount on the PCB along with other components in the design. It works over a broad temperature range and it has an excellent thermal performance. Moreover, its simple process flow, eliminates the need for additional assembly steps such as pin welding, which helps to save fabrication costs.

The surge and ESD protection provided by the BZW04-299BHR0G is enhanced due to its low clamping voltage. This can be explained by the way it works. During an ESD pulse or overvoltage event, the device switches to a high resistance state. This normally helps to reduce the peak of the pulse, thus reducing the overvoltage generated. However, in case of a high energy pulse or a surge, the device can clamp the voltage at its Zener voltage level thus preventing an overvoltage and avoiding damage. However, the device is designed for a single pulse protection, and it is necessary to protectit against repetitive pulses.

The BZW04-299BHR0G is a cost effective and highly efficient device that provides surge and ESD protection for a wide range of applications. It is designed to withstans pulses and over-voltages due to its low leakage current and high resistance state. Moreover, it is a great choice for low power applications due to its small size and excellent thermal performance. As it contains two Zener segments it is able to provide an UVLO protection thus helping to protect sensitive electronic circuits from damaging overvoltage levels.

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