3EZ62D5E3/TR12

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	62V
Tolerance:	±5%
Power - Max:	3W
Impedance (Max) (Zzt):	55 Ohms
Current - Reverse Leakage @ Vr:	500nA @ 47.1V
Voltage - Forward (Vf) (Max) @ If:	1.2V @ 200mA
Operating Temperature:	-65°C ~ 150°C
Mounting Type:	Through Hole
Package / Case:	DO-204AL, DO-41, Axial
Supplier Device Package:	DO-204AL (DO-41)
Base Part Number:	3EZ62

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Introduction

Diode Zener single devices are used mainly in voltage regulation, voltage spike suppression and AC/DC input protection. The 3EZ62D5E3/TR12 diode can be used to protect system components from high voltage spikes and over-voltage levels. It is also used in rectification and power supply applications. In this paper, we will discuss the application field of the 3EZ62D5E3/TR12 diode and its working principle in detail.

Application Field

The 3EZ62D5E3/TR12 Zener diode is a single package device that combines the function of both a Zener diode and a reverse avalanche diode in a single device. It can be used in applications that require voltage regulation from over-voltage spikes and AC-DC voltage inputs. The reverse avalanche diode provides protection in case of reverse voltages up to 5A, while the Zener diode regulates the output voltage to 6.2V. The Zener diode also provides protection from voltage spikes and over-voltage levels, making it suitable for use in power supplies, as well as in industrial, consumer and automotive applications. The 3EZ62D5E3/TR12 diode is also used in circuits that require a small amount of protection from over-voltage levels and AC/DC input voltages. It can be used in linear and switching power supplies, LED drivers, LED light fixtures, and logic level conversion systems. In these applications, the 3EZ62D5E3/TR12 diode acts as a mechanical and electrical fuse, providing protection against over-voltage and AC-DC input voltages. Additionally, it can be used in AC/DC converters and rectifying circuits.

Working Principle

The 3EZ62D5E3/TR12 diode is composed of two different types of diodes; a Zener diode and a reverse avalanche diode. A Zener diode is a heavily doped pn-junction diode, which is designed to operate in the reverse-biased breakdown mode. When a reverse voltage is applied, the majority carriers move from the n-type side of the junction to the p-type side, resulting in a decrease in the diode resistance. This process, known as “Zener breakdown”, causes the diode to conduct in the reverse direction.The Zener diode regulates the output voltage, allowing it to remain constant in the event of an over-voltage event. This process works by using the Zener voltage of the diode, which is the voltage that causes the diode to breakdown when the diode is forward biased. If the input voltage reaches or exceeds the Zener voltage, the diode will breakdown, resulting in a reduced voltage.The second component of the 3EZ62D5E3/TR12 diode is the reverse avalanche diode. This diode is designed to protect the circuit from high reverse voltage spikes or surges. If the input voltage exceeds the breakdown voltage of the diode, the diode will conduct current in the reverse direction. This allows the diode to absorb the excess energy, rather than letting it pass through the circuit, thereby protecting the components from damage.

Conclusion

The 3EZ62D5E3/TR12 Zener diode is a single package device that combines the functions of a Zener diode and a reverse avalanche diode in a single device. It can be used in applications that require voltage regulation from over-voltage spikes and AC-DC voltage inputs, as well as in power supplies, LED drivers, LED light fixtures, and logic level conversion systems. The Zener diode regulates the output voltage to a fixed value, while the reverse avalanche diode protects the circuit from reverse voltage spikes.

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