1N4625 BK

A 1N4625 BK is an aluminum-doped junction silicon electrochemical device, commonly known as a Zener diode. As an electronic component, it is a single junction device used in various applications. This article discusses the application field and working principle of the 1N4625 BK.

Applications

A 1N4625 BK is widely used in low voltage clipping circuit applications and voltage stabilization circuits. In clipping circuits, a Zener diode is used to clip or limit the voltage or current to a predetermined level. In voltage stabilization circuits, the Zener diode provides a continuous current over a wide range of input voltage changes. It is also used in overvoltage protection circuits, reverse polarity protection circuits, and other applications.

Working Principle

A 1N4625 BK is a voltage-controlled device. The junction of a Zener diode is formed from an identical doping of two elements, typically silicon and aluminum. When the voltage applied to the diode exceeds the Zener voltage, the difference is converted to current. This current flow is known as Zener breakdown and it is what allows the diode to regulate the voltage.

The Zener voltage (VZ) of a Zener diode is determined by the breakdown voltage of the device and the reverse bias voltage applied to the diode. When the reverse bias voltage is increased, the Zener voltage increases, while the breakdown voltage of the diode decreases with increasing reverse bias voltage. When the breakdown voltage is exceeded, a large amount of current flows through the junction of the diode, allowing a regulated voltage to be attained. This current is also known as a Zener current.

Conclusion

A 1N4625 BK is a single junction device used in various applications. It is used in low voltage clipping circuits, voltage stabilization circuits, overvoltage protection circuits, and other applications. The working principle of a Zener diode is based on the Zener breakdown and Zener current. The Zener voltage is determined by the breakdown voltage of the diode and the reverse bias voltage applied to it. Zener diodes are becoming increasingly important in the electronics industry, as they offer a way to efficiently regulate voltages.