CZRFR52C9V1-HF

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	9.1V
Tolerance:	±5%
Power - Max:	200mW
Impedance (Max) (Zzt):	10 Ohms
Current - Reverse Leakage @ Vr:	100nA @ 7V
Voltage - Forward (Vf) (Max) @ If:	900mV @ 10mA
Operating Temperature:	-55°C ~ 125°C
Mounting Type:	Surface Mount
Package / Case:	1005 (2512 Metric)
Supplier Device Package:	1005/SOD-323F

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Diodes - Zener - Single: CZRFR52C9V1-HF Application Field and Working Principle

Introduction

The CZRFR52C9V1-HF is a single-zone ultrafast Zener diode that has a wide range of applications. Its unique structure provides a low capacitance, fast dynamic switching capability, and high power density while maintaining low forward voltage drop. The device operates in a very wide temperature range, from -55°C to +125°C, and is the ideal choice for cost-sensitive applications. With its high-performance specifications and excellent long-term stability, the CZRFR52C9V1-HF is suitable for any power management design that requires reliable Zener diode protection.

Purpose of CZRFR52C9V1-HF

The CZRFR52C9V1-HF is a single-zone ultrafast Zener diode used in numerous types of power management designs where high performance and reliability are essential. This device provides both overvoltage and overcurrent protection, and its low forward voltage drop ensures that the circuit will not draw excessive power. Additionally, its wide temperature operating range ensures that components can remain in operation even under extreme temperatures.

Applications of CZRFR52C9V1-HF

The CZRFR52C9V1-HF can be used in a variety of industrial, automotive, and consumer applications, including:

• Electronic power switches (EPS) and power integrated circuits (PICs)
• Hot-swappable power supplies and other power controllers
• High-current and high-voltage DC-DC converters
• Battery chargers and power supplies
• Overvoltage and overcurrent protection circuits
• Automotive applications such as engine control systems and anti-skid control

Working Principle of CZRFR52C9V1-HF

When the voltage at the anode of the diode exceeds the Zener voltage, the resulting surge of current causes the depletion region at the P-N junction to increase, allowing the current to flow in the opposite direction which is known as the reverse current. As the voltage on the anode increases, the reversal current rises. This results in a decrease of voltage across the anode and cathode, reducing the total voltage that is present when the reverse current increases. Ultimately, this operation helps protect the device and the circuits that it is powering against overvoltage and overcurrent events.The device\'s ultrafast response also helps guard circuits against high-input transients, providing additional protection for elements of the power management design.

Conclusion

The CZRFR52C9V1-HF is an ideal choice for any power management design that requires reliable Zener diode protection. Its high performance specifications, low capacitance, and wide temperature operating range make it an ideal solution for any number of industrial, automotive, and consumer applications. The device\'s working principle is based on a reverse current flow at the P-N junction which helps protect circuits against overvoltage and overcurrent events, thus delivering a higher level of reliability and peace of mind.

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