3EZ20D2E3/TR12

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The 3EZ20D2E3/TR12 Zener diode is a single-diode component used to regulate the voltages on equipment and components. Its operating principle is to allow the passage of current in one direction while establishing an electrical reference voltage.

During normal operation, a Zener diode will allow current to pass through it only in one direction, the anode to the cathode. Under reverse voltage, the electrical reference voltage, usually in the form of a stable voltage, will be higher than the normal operating voltages and the diode will be ‘clamped’, so that this voltage can’t be exceeded. This reference voltage is set by the user when selecting a suitable component for the application in hand.

Typical uses for Zeners include regulating or stabilizing voltage for sensitive components that require a reference, such as satellite and communications equipment and sensitive data processing systems. The Zener diode can also be used as a protection component, to clamp or prevent surges that could otherwise damage sensitive components and systems, or as an indication component in alarm or warning systems.

In certain applications, Zener diodes can be used to control the direction of current flow, for example in motor control systems. When used in this way, the reference voltage of the Zener diode determines the voltage threshold for activating a component. The component is only activated when the voltage across the device has been breached, allowing only current in the directions defined by the voltage of the component.

In other applications, Zener diodes are used to produce a constant voltage output. This is especially useful in noisy or unstable power supplies which could otherwise cause interference or damage to electronic components. The Zener diode is connected to the varying voltage of the power supply, clamping the voltage to the reference voltage level of the diode. This ensures both a constant output voltage and a higher degree of protection against interference or surges in the power supply.

The 3EZ20D2E3/TR12 Zener diode is ideal for applications such as power supply regulation, motor control, communications systems, data processing and track vehicles.

The 3EZ20D2E3/TR12 has a voltage range of 8.0V – 12V, a maximum power dissipation of 500mW and a maximum reverse leakage current of 2.0mA. Its temperature range is from -65°C to +175°C. Its operating voltage is from -9V to +18V.

As a single diode component, the 3EZ20D2E3/TR12 is the ideal choice for a wide range of applications requiring voltage regulation and protection against interference or surges. Its reference voltage and power dissipation ratings make it well suited to a variety of industries, such as automotive, communication, data processing and satellite applications.

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