BZX84C20_L99Z

The BZX84C20_L99Z is a single Zener diode. It belongs to the field of diodes and can be used to regulate the current in an electrical circuit. The diode has a breakdown voltage of 20V and a maximum Zener current of 200mA.

Zener diodes have a special application in voltage regulator circuits. By connecting the diode in reverse-blocking mode across the output of a supply, the zener diode will regulate the output voltage by introducing a voltage drop. To enable the zener diode to effectively regulate the output voltage, the applied voltage must be higher than the breakdown voltage. In this case the BZX84C20_L99Z diode has a breakdown voltage of 20V.

The Zener diode also finds applications as a protection element. By connecting the diode in reverse-blocking mode across a sensitive device, the diode will protect the device against voltage transients by maintaining the voltage below the breakdown voltage. This action of the Zener diode prevents the transients, which are high frequency, short duration voltage spikes, from reaching the protected device.

The working principle of the BZX84C20_L99Z is based on the principle of reverse breakdown. When a reverse voltage is applied across the diode which is higher than the breakdown voltage, the junction of the diode breaks down and current starts to flow through the device. This current is limited to a maximum level, which is known as the Zener current. As a result, the diode will regulate the output voltage and protect the circuit from transients.

The BZX84C20_L99Z diode is widely used in various electrical circuits due to its low cost, high breakdown voltage and good Zener stability. It can be used in voltage regulator circuits, shunt voltage regulators, current stabilizers, LED drivers and many other applications. It is also suitable for use in high speed circuits, as its reverse recovery time is relatively small.

The BZX84C20_L99Z is a useful and popular component for regulators and transient protection applications. It has a wide range of application fields and its working principle is based on the principle of reverse breakdown. As a result, it can regulate the output and protect sensitive components from voltage transients.