3EZ13D2E3/TR8 Application Field and Working Principle

The 3EZ13D2E3/TR8 diode is a single Zener in an SOD-123 package. It is designed for stabilized power supplies and voltage clamps. The Zener diode is used to establish a specific voltage level in electrical and electronic circuits. It has a reverse breakdown voltage of 18V and a power dissipation of 500mW. The maximum reverse current over temperature is specified as 5mA.

The 3EZ13D2E3/TR8 begins to conduct current in both the forward and reverse directions when the forward voltage is greater than the breakdown voltage. The Zener diode functions as a voltage regulator which prevents the output voltage from rising above the Zener voltage. This ensures that the voltage fed back to the input of the power supply is kept constant.

In a stabilized power supply, the Zener diode is used as a voltage regulator, which prevents the output voltage from varying by more than a few percent. The Zener diode is connected in series with a resistor, which limits the current flow through the diode to a safe level. The diode is reverse-biased, and its Zener voltage appears across it when sufficient current passes through to the point of conduction.

In the application of a voltage clamp, the Zener diode is connected across the input voltage source, providing protection to the circuit by clamping the peak voltages to a safe level. The Zener diode allows the current to flow through the circuit only when the voltage exceeds the Zener voltage, allowing the voltage to rise quickly but drop down as soon as the Zener diode breaks down.

The 3EZ13D2E3/TR8 diode can also be used in a clipper circuit, where it rectifies the input signal and clips off excessive voltage spikes. The diode is connected across the input signal, and it becomes forward-biased when the amplitude of the input signal exceeds the Zener voltage. This allows the voltage to bypass the clipping section and flow to the load.

Overall, the 3EZ13D2E3/TR8 diode is an easy to use and cost-effective solution for voltage stabilization and voltage clamping applications. It is designed for reliable operation and offers excellent performance in various types of power supply and noise suppression circuits.