CDBU0340-HF

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The CDBU0340-HF is a single rectifier diode that offers optimum performance in a variety of applications. The diode is developed to ensure low forward voltage drop and stable reverse recovery time, making it ideal for applications such as general purpose rectification, switch-mode power supplies and other power conversion applications. Here’s a look at the application field and working principle of the CDBU0340-HF.

Application Field

The CDBU0340-HF is designed for general purpose rectification, switch-mode power supplies, LED lighting, and other power conversion applications. The diode is configured in an isolated BGA, which offers increased isolation from other components and offers improved thermal performance.

The CDBU0340-HF is also suitable for over-voltage and over-current protection, bridge rectifiers and motor speed control applications. It is suitable for use as a freewheeling diode in power controller, switching power supplies and other power switch applications.

Working Principle

The CDBU0340-HF utilizes a diode structure with an optimized rated forward current, reverse recovery time and on-state resistance. The internal construction of the device includes a p+ layer, an n-layer, and a field-oxide layer. The n-layer serves as a conducting channel to allow current flow during the forward bias condition. When the voltage across the diode surpasses the breakdown voltage, the electrons in the p+ layer inject into the n-layer and cause avalanche breakdown.

In the reverse bias condition, the diode has a low forward drop and the current does not flow. The low reverse leakage current ensures the diode does not consume too much power in this condition. The reverse recovery time of the CDBU0340-HF is also optimized, allowing it to rectify current with minimal switching losses.

When operated in the on-state condition, the CDBU0340-HF has a low on-state resistance, which reduces the power loss across the device. The optimized on-state resistance also helps to ensure the diode is able to redirect current quickly and accurately.

The CDBU0340-HF provides outstanding performance in a variety of applications and is suitable for a wide range of uses. The diode’s optimized ratings and design details make it the perfect choice for general purpose rectification, switch-mode power supplies, LED lighting and other power conversion applications.

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