NZ9F3V3ST5G Discrete Semiconductor Products

The NZ9F3V3ST5G is a single Zener diode, which is a semiconductor component that mainly exploits the phenomenon of Zener breakdown in which an electric voltage is built up in the reverse direction when the electric field exceeds the critical value. This component can be used as a regulator to maintain a constant voltage, as a reference source, as a voltage clamp, as a voltage regulator or in voltage controlled circuits, among others.

A single Zener diode has two terminals, the anode and the cathode, between which current can flow through the diode in two directions, forward and reverse. When an AC voltage is applied in the forward direction, the diode acts as an ordinary diode and permits the current to flow as long as the applied voltage is greater than the gap voltage. However, when a reverse voltage exceeding the critical value is applied to the Zener diode, the Zener breakdown region is activated and current flows across the reverse-biased pn junction even when the applied voltage is not much greater than the Zener breakdown voltage.

The NZ9F3V3ST5G is a single Zener diode featuring a nominal (static) voltage of 3.3V, a current rating of 5mA, and a working temperature range from -30°C to +85°C. Its superior characteristics and low capacitance are ideal for use in high-speed switching circuits, audio applications, and as a reference source in power supplies, reference clocks, and temperature sensing circuits.

The working principle of the NZ9F3V3ST5G depends on its construction. It consists of a PN junction diode, which is reverse-biased to create a potential barrier in order to prevent current from flowing in the reverse direction. When a reverse voltage is applied to the Zener diode, the potential barrier at the junction is lowered, allowing a current to flow in the reverse direction.

When a reverse voltage is applied to the Zener diode, the current passes through the junction and is regulated by the diode. The breakdown voltage varies non-linearly with the temperature, and can also vary with time due to aging of the component. The voltage of the diode is set with the maximum reverse bias current to obtain a positive and constant voltage output, which is what makes the Zener diode a highly stable component suitable for applications that require an accurate, predictable voltage.

In summary, the NZ9F3V3ST5G is a single Zener diode designed for use in high-speed switching circuits, audio applications, and as a reference source in power supplies, reference clocks, and temperature sensing circuits. It utilizes the Zener breakdown phenomenon to create a potential barrier between the anode and cathode and regulate the current in the reverse direction. The diode features a nominal voltage of 3.3V, a current rating of 5mA, and a working temperature range from -30°C to +85°C, and ensures a highly stable voltage output for applications requiring an accurate, predictable voltage.