CZ5358B BK

Series:	--
Packaging:	Bulk
Part Status:	Active
Voltage - Zener (Nom) (Vz):	22V
Tolerance:	±5%
Power - Max:	5W
Impedance (Max) (Zzt):	3.5 Ohms
Current - Reverse Leakage @ Vr:	500nA @ 16.7V
Voltage - Forward (Vf) (Max) @ If:	1.2V @ 1A
Operating Temperature:	-65°C ~ 200°C
Mounting Type:	Through Hole
Package / Case:	DO-201AA, DO-27, Axial
Supplier Device Package:	DO-201

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Diodes – Zener – Single: CZ5358B BK

The CZ5358B BK is a single zener diode that provides exceptional levels of reliability and performance. This silicon zener diode is designed to provide a cost-effective solution to the high-performance requirements of modern electronics and communications applications.

Application Field

The CZ5358B BK is optimized for use in a wide range of applications, such as:

• Digital circuit protection;
• Mains protection in hot-plug power supplies;
• Overvoltage crowbar circuit;
• Transient protection in LED-based lighting;
• Polarity reversal protection for critical control circuits;
• Telecommunications equipment;
• Autonomous power supply stabilizers.

The CZ5358B BK is well suited for use in high frequency power circuits, due to its very low forward voltage drop and low capacitance. The wide operating temperature range makes this diode suitable for use with most components, even in the most hostile of environments.

Working Principle

The CZ5358B BK is a single zener diode built using a silicon substrate and a zener-type junction. As the name suggests, zener diodes are designed to react to an increase in voltage across them by allowing a reverse current surge to flow in the opposite direction. This sudden rush of current limits the overall voltage of the circuit by limiting the voltage surge, thus protecting the devices from overvoltage damage.The breakdown voltage of the diode is determined by a process called “zener knee” in which the diode’s internal resistance starts to decrease suddenly as the voltage reaches a certain level. When the breakdown voltage is reached, the diode allows current to flow in both directions. As the voltage increases further, the current remains steady at a certain level, which is known as the “zener current”.The CZ5358B BK has a breakdown voltage of 7.1 V and a zener current of 500 mA, making it an ideal solution for many applications. The diode also features a low capacitance of 1.4 pF, which is important for high frequency circuits, as decreasing capacitance results in faster switching times and less power consumption.

Conclusion

The CZ5358B BK is an ideal solution for many modern electronics and communication applications, thanks to its high levels of performance, reliability, and wide operating temperature range. This silicon zener diode is designed to protect devices from overvoltage damage, while offering a cost-effective solution to the high-performance requirements of today’s electronics.

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