CZRER52C6V8-HF

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	6.8V
Tolerance:	±5%
Power - Max:	150mW
Impedance (Max) (Zzt):	8 Ohms
Current - Reverse Leakage @ Vr:	100nA @ 3V
Voltage - Forward (Vf) (Max) @ If:	900mV @ 10mA
Operating Temperature:	-55°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	0503 (1308 Metric)
Supplier Device Package:	0503 (1308 Metric)

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Diodes - Zener - Single - CZRER52C6V8-HF

Zener diode is a unique type of diode that allows current to flow in the reverse direction when the reverse voltage exceeds a certain value, called the breakdown voltage or Zener voltage. This property makes zener diodes useful in the design of voltage regulators, voltage reference sources, and surge suppressors.Typically, a Zener diode is identified by its breakdown voltage prefix which is used to describe its reverse breakdown voltage. The most common Zener diode is the CZRER52C6V8-HF diode, a single diode with a breakdown voltage of 6.8V.

Applications

The CZRER52C6V8-HF diode is widely used in voltage regulators, voltage reference sources and surge suppressors. By inserting the Zener diode in series with a normal diode, a sharp “knee” can be created at the normal diode’s forward current point. When an input voltage greater than this knee is applied to the circuit, the diode acts as a voltage regulator or voltage reference, providing the same output voltage.The application of this diode as a surge suppressor, or as part of a voltage regulator, makes it ideal for use in power supplies, automotive applications, motor controls, and a variety of other applications. For example, in car audio systems, the CZRER52C6V8-HF Zener diode can be used as part of a power supply that helps protect speakers from damage caused by excessive input voltages.

Working Principle

The CZRER52C6V8-HF is an unidirectional device which means it only allows current to flow in one direction, namely forward current. The body of the Zener diode is composed of a special semiconductor material that behaves differently from other diodes. In a normal diode, when a large reverse voltage is applied to the diode, the junction breaks down and allows current to flow in the reverse direction. However, in a Zener diode, when a large voltage is applied to it, the junction does not break down but instead allows a much smaller reverse current to flow. This reverse current is the Zener current, which continues to flow even when the applied voltage is greater than the breakdown voltage of the diode.This Zener current, however, is limited by the maximum reverse current allowed by the device and is determined by the manufacturer’s specifications. As soon as this limit is exceeded by the forward current, the voltage across the junction falls and the forward current is limited. This process is known as Zener breakdown and is the core principle behind the CZRER52C6V8-HF diode.

Conclusion

The CZRER52C6V8-HF Zener diode is a single diode with a breakdown voltage of 6.8V and is widely used in the design of voltage regulators, voltage reference sources and surge suppressors. By allowing a smaller Zener current to flow when a higher voltage is applied to the junction, this diode creates a sharp knee at the normal diode’s forward current point. This makes it suitable for use in a wide range of applications, including power supplies, automotive applications, motor controls and audio systems.

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