1N5251C-TR

Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	22V
Tolerance:	±2%
Power - Max:	500mW
Impedance (Max) (Zzt):	29 Ohms
Current - Reverse Leakage @ Vr:	100nA @ 17V
Voltage - Forward (Vf) (Max) @ If:	1.1V @ 200mA
Operating Temperature:	175°C
Mounting Type:	Through Hole
Package / Case:	DO-204AH, DO-35, Axial
Supplier Device Package:	DO-35

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Introduction

The 1N5251C-TR is a discrete semiconductor component packaged in a standard two-lead package, typically used to regulate the voltage in circuits. It is a single Zener diode. A Zener diode, like a normal diode, allows current to flow in one direction only. However, when a reverse voltage is applied to the diode which is above a certain threshold, the diode will conduct in a reverse direction. This phenomenon is used in the 1N5251C-TR to regulate a voltage within a circuit.

Application Field

1N5251C-TR Zener diodes can be found in various electronic applications. It is particularly useful for voltage regulation over a wide range of input voltages, often higher than the regulated output voltage. It can also be used as a power supply for circuits using low current. The 1N5251C-TR also finds applications in voltage sensing and buffering circuits. These circuits detect fluctuations in the voltage and respond accordingly, for example providing stimulation to another component. It is also used as a protection device in circuits, as it will stop electrical current from reversing and damaging components.

Working Principle

The 1N5251C-TR Zener diode works on the principle of a Zener breakdown which occurs when a reverse voltage is applied at a certain level. A regular diode allows free conduction in one direction, while blocking conduction in the opposite direction. However, when a reverse voltage is applied which is above a certain threshold, a Zener breakdown occurs. This breakdown leads to a large surge of electrical current in the reverse direction. This current is set inversely proportional to the applied voltage, meaning it can be used to maintain a steady voltage. This is the principle on which the 1N5251C-TR Zener diode functions.

Conclusion

The 1N5251C-TR is a single Zener diode typically used in a variety of electronics applications. It works on the principle of a Zener breakdown caused by a reverse voltage above a certain threshold. When this breakdown occurs, a large surge of current is produced in the reverse direction, allowing a steady voltage to be maintained in the circuit. The 1N5251C-TR is used in areas such as low-current power supplies, voltage-sensing circuits and protection circuits, making it a versatile component in the electronics world.

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