CZRER4V3B-HF

Diodes are electrical components that allow electrical current to travel in one direction only and block it from travelling in the opposite direction. Zener diodes are a special type of diode that is designed to be reverse-biased, meaning that the voltage is applied in a direction opposite the direction of normal current flow. Among the types of Zener diodes, the CZRER4V3B-HF is especially designed for controlling electrical voltage and current. This article will discuss the application field of CZRER4V3B-HF and its working principle.

Application Field

The CZRER4V3B-HF is a silicon-based, temperature-stable Zener diode that is fabricated using high-reliability planar technology with a power rating of 4.3 watts. This diode finds numerous applications in power supplies, voltage regulators, signal clippers, signal limiters, and stabilization circuits. CZRER4V3B-HF is highly reliable and has low noise characteristics.

Its application is not limited to the power supplies segment. It can find usage in the telecommunications field as well; for example, to protect radio-frequency (RF) signal amplifiers. Its temperature coefficient is ±2.0 mV/°C and its voltage regulation is 2.5 V at a temperature of 25°C. Moreover, its surge rating is 8.0 Watts.

Working Principle

When a voltage is applied to the Zener diode in the reverse-biased state, the electric current keeps increasing until the Zener breakdown voltage is reached; after this, the current will remain constant no matter how much the voltage increases. This is because the diode is loose when its break-down voltage is exceeded; beyond this point, no further increase in voltage causes a further increase in current, allowing the diode to work as a voltage regulator.

In the case of the 4.3 watts CZRER4V3B-HF Zener diode, its breakdown voltage is 4.3V. This means that no matter how the voltage changes, it will remain constant above this point and current will constantly be regulated; this makes the diode suitable for a range of power applications. It also means that the voltage and current will not be absolutely stable – some variations are to be expected due to the temperature coefficient and other physical limitations of the diode.

Conclusion

The CZRER4V3B-HF Zener diode regains its importance due to the high reliability that can be created by using it in a variety of applications such as power supplies and signal clippers. Its working principle is centered around regulating current when the diode exceeds its break-down voltage regardless of any temperature coefficient and other physical limitations of thediode.