BZX884-B51,315

Introduction

The BZX884-B51,315 is a single zener diode with a maximum reverse power of 3.2 W, a maximum breakdown voltage of 41 V, and a maximum continuous current of 8 mA. It is designed for a variety of applications, including power supplies, regulators, switching circuits, and transistor clamps.

Application Fields

The BZX884-B51,315 is most commonly used in switching and regulator circuits. It acts as a shunt regulator, allowing a current to flow from the common cathode to the anode when the anode is more than the zener voltage (Vz) of the diode. This helps maintain a constant voltage for the circuit, allowing for stable switching and regulating. The diode can handle high frequencies, making it suitable for high-speed switching and regulating applications.

In addition to switching and regulating circuits, the BZX884-B51,315 is also used in power supplies. It helps maintain a constant voltage across the load while preventing potential ground loops. It is also used in transistor clamps to ensure that the voltage across the transistor does not exceed a certain limit.

Working Principle

The BZX884-B51,315 is a single zener diode that works on the principle of avalanche breakdown. When the reverse voltage exceeds the zener voltage (Vz), an avalanche of electrons occurs in the semiconductor material. This results in a large amount of current flowing from the anode to the cathode, which helps keep the voltage on the anode at a constant level.

When the anode voltage is below the zener voltage, the diode does not conduct any current, thus allowing the circuit to maintain its voltage without the influence of the diode. This makes the BZX884-B51,315 suitable for both regulating and switching circuits.

Conclusion

The BZX884-B51,315 is a single zener diode with a maximum reverse power of 3.2 W, a maximum breakdown voltage of 41 V, and a maximum continuous current of 8 mA. It is designed for a variety of applications, including power supplies, regulators, switching circuits, and transistor clamps. The diode works on the principle of avalanche breakdown to maintain a constant voltage across the load and to prevent ground loop issues.