MMSZ5252B-HE3-18

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Diodes are essential components in most electronics. They are used to control the direction of current flow, or to provide a rectified version of incoming AC power. A type of diode called a zener diode is useful because it maintains a particular voltage despite variations in current and temperature. The MMSZ5252B-HE3-18 is a single zener diode specifically designed for clamping and voltage regulation applications.

Application Field

The MMSZ5252B-H03-18 is an ideal component for applications that need a fixed voltage despite changing current and temperature. Many electronic devices need to be regulated to have a stay within a safe voltage operating range, and the MMSZ5252B-H03-18 zener diode helps provide that stability. The device is suggested for use in consumer products such as DVD players, audio amplifiers, digital cameras, and LCD TVs, as well as in industrial applications such as sensing and control systems.

Working Principle

Zener diodes are designed to create a voltage across their terminals even when the current through them is changed. They work on the principle of reverse breakdown; in reverse bias, the carriers will have enough energy to cross the depletion region and reach the other junction. When the reverse bias voltage reaches a certain point, the carriers will increase in number, thus increasing the voltage across the diode. The value at which this occurs is the Zener voltage.

The MMSZ5252B-H03-18 is a single zener diode with a Zener voltage of 18V. This means that no matter what the current through the diode, the voltage across the terminals of the diode will remain constant at 18V. This constant is useful when you need a particular voltage across components that are vulnerable when voltage drops or rises too high. The diode also has a PIV (peak inverse voltage) rating of 45V which is the maximum voltage it can take before it breaks down.

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