1N4564RB

Series:	--
Packaging:	Bulk
Part Status:	Obsolete
Voltage - Zener (Nom) (Vz):	7.5V
Tolerance:	±5%
Power - Max:	50W
Impedance (Max) (Zzt):	0.24 Ohms
Current - Reverse Leakage @ Vr:	10µA @ 3V
Voltage - Forward (Vf) (Max) @ If:	1.5V @ 10A
Operating Temperature:	-65°C ~ 175°C
Mounting Type:	Through Hole
Package / Case:	TO-204AD
Supplier Device Package:	TO-204AD (TO-3)
Base Part Number:	1N4564

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Introduction

1N4564RB is a silicon Zener diode developed for high stability, low noise and high speed applications. It can act as a voltage regulator, current regulator, switching device, or rectifier. Its working principle relies on its ability to combine two functions into one device, allowing it to regulate both voltage and current. It is also known for its high temperature stability and high reliability.

Applications

1N4564RB has a wide range of applications where in it can be employed to provide voltage regulation and as a protection device. It can be used in industrial, automotive and telecommunications. In industrial applications like in power supplies, 1N4564RB can be used to control the amount of current and voltage that could be passed through a certain electrical device. It is also used as a stabilizer in LED lighting systems and prevent voltage surges. In automotive applications, 1N4564RB, being a Zener diode, provides voltage stabilization and helps to protect automotive equipment. It can also be used as an overvoltage protection device, particularly as a part of a power controller circuit in an automobile. In telecommunications, 1N4564RB can be deployed to provide a consistent power supply and reduce the amount of noise from antennas. It also helps to protect electronic circuits from lightning strikes and other disturbances.

Working Principle

The working principle of 1N4564RB is based on Zener breakdown. When a reverse bias voltage is applied, the Zener breakdown begins to occur when the applied voltage exceeds the Zener voltage. At this point, the diode enters a region called a Zener avalanche, where the breakdown voltage is set to a certain level and the current traveling through the diode remains constant. When a regulated output voltage is needed, a series resistor is placed in the circuit that allows only limited current to move through the diode. This creates a voltage divider network. This helps to limit the output voltage as well as the current, reducing the amount of power dissipated by the diode.

Conclusion

1N4564RB is a Zener diode that combines the functions of a voltage regulator and current regulartor. It is used in a variety of applications, such as industrial, automotive and telecommunications, where it can be employed to provide voltage stabilization and to protect electronic equipment from voltage surges. Its working principle is based on Zener breakdown, which creates a region where the breakdown voltage is set to a certain level and the current traveling through the diode remains constant.

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