CZRT55C4V7-G

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Diodes – Zener – Single – CZRT55C4V7-G application field and working principle

The CZRT55C4V7-G provides excellent performance as well as reliability required in today’s electronic systems. It is a 3-terminal single-stage Zenner diode with a low forward voltage drop and high-temperature operation, typically available in the TO-257 surface-mount package. Optimal for voltage regulation, line-regulation, temperature compensation, and series regulation applications, it is designed to dissipate a power up to 0.9W at 25℃.

The CZRT55C4V7-G is ideal for suppressing transients in high-frequency circuits, such as those using the VITA-47 Family CompactPCI technology. It is also suitable for applications that require higher breakdown voltage performance and stability at elevated temperatures. The device has a potential of 55V and a current rating of 150 mA.

The CZRT55C4V7-G uniquely combines solid-state semiconductor technology with positive temperature coefficient resistance and limiters to provide high thermal performance, low VF and stable current. This reliable three-terminal diode has a special diode construction to ensure low noise and low VF knee. The device is designed with soft, rugged and reliable components to meet the needs of different markets. With its high-temperature and high-power capabilities, the CZRT55C4V7-G creates high-performance and stable DC voltage regulation with excellent reliability.

The CZRT55C4V7-G offers many advantages and features which make it suitable for a broad range of applications. These include low forward voltage, high surge current rating, low leakage current, and improved temperature coefficient. The device\'s high-temperature operation makes it well-suited for automotive and military applications. The CZRT55C4V7-G is UL recognized and AEC-Q101 qualified. It is also RoHS-compliant and certified for low-halogen compliance.

The CZRT55C4V7-G’s working principle is based on the unique enhancement-ideal diode structure. This design ensures that the maximum current ‘on state’ does not exceed the rated current even at operating temperature. During the on-state, electrons are injected in the depletion layer and are prevented from leaking out. As the current increases, the depletion layer width increases until it reaches a point where the current remains constant. This is the ‘on state’ of the diode. When the diode is in the ‘off’ state, the depletion layer width decreases and the current stops flowing.

The CZRT55C4V7-G is a three-terminal device that requires two external sources and two resistors to control its output voltage. The two external sources provide a reference voltage and current which is used to control the output voltage of the Zener diode. A resistor is connected between the two external sources, and another is connected to the CZRT55C4V7-G’s cathode terminal. This resistor sets the output voltage of the diode assuming the current remains constant.

In summary, the CZRT55C4V7-G offers superior performance and reliability for use in a broad range of applications. With its low forward voltage, low leakage current, and improved thermal coefficient, it is perfectly suited for voltage regulation, line regulation, temperature compensation, and series regulation applications. Its high-temperature operation makes it well-suited for automotive and military applications. The CZRT55C4V7-G is UL recognized and AEC-Q101 qualified, and offers excellent reliability.

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