2EZ5.1D5/TR12

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	5.1V
Tolerance:	±5%
Power - Max:	2W
Impedance (Max) (Zzt):	3.5 Ohms
Current - Reverse Leakage @ Vr:	5µA @ 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:	2EZ5V1

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Introduction

A 2EZ5.1D5/TR12 Diode is one of the most widely used Zener Diodes in the field of electronics. Zener diodes allow the flow of electric current in one direction, while blocking the flow in the opposite direction. When the voltage applied to a 2EZ5.1D5/TR12 diode is at or below its rated breakdown voltage, it will start to conduct. This makes the diode useful for providing a steady voltage source for powering electronic circuits, regardless of any fluctuations in the power supply voltage.

Application Field and Working Principle

The application of the 2EZ5.1D5/TR12 diode is mainly in power management, as a voltage reference and over-voltage protection. It is popular in many devices such as computers, cellular phones and television sets, as it limits the output voltage level and securely protects sensitive components.The 2EZ5.1D5/TR12 diode has a reverse breakdown voltage of 5.1 volts and a maximum reverse current of 1mA. It also has a forward voltage drop of 250mV and a total power dissipation of 650mW. When a negative voltage is applied to the 2EZ5.1D5/TR12 diode, the electric current is blocked and no current flows, as the diode is built to have an extremely high resistance in this mode. But when a positive voltage is applied which is above the breakdown voltage of 5.1 volts, the diode will start to conduct and the current will pass through it. The diode will regulate the output voltage to a steady level of 5.1 volts despite fluctuations in the input voltage.The Zener effect is the main working principle behind the 2EZ5.1D5/TR12 diode. The Zener effect states that when a voltage greater than the breakdown voltage is applied to a diodes p-n junction, it will begin to avalanche. This causes a large quantity of holes and electrons to be generated and accelerated further by the applied voltage. This creates a low-resistance region in the p-n junction, causing it to conduct even in the reverse direction.In addition to its voltage regulating feature, the 2EZ5.1D5/TR12 diode also acts as a spike suppressor. When exposed to an excessive amount of voltage, the diode will reduce the voltage to the rated level. This protects the circuit elements from any additional damage that the excess voltage could cause.

Conclusion

The 2EZ5.1D5/TR12 diode is a great choice for any electronic circuit that requires stability in its output voltage. As it is highly reliable and over-voltage protected, it can also be used to protect sensitive circuit elements from any excessive voltage. The diode\'s stable voltage regulation and over-voltage protection make it one of the most widely used Zener diodes in the market.

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