1N757A BK

Series:	--
Packaging:	Bulk
Part Status:	Active
Voltage - Zener (Nom) (Vz):	9.1V
Tolerance:	±5%
Power - Max:	500mW
Impedance (Max) (Zzt):	10 Ohms
Current - Reverse Leakage @ Vr:	100nA @ 1V
Voltage - Forward (Vf) (Max) @ If:	1.5V @ 200mA
Operating Temperature:	-65°C ~ 200°C
Mounting Type:	Through Hole
Package / Case:	DO-204AH, DO-35, Axial
Supplier Device Package:	DO-35

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Introduction

The 1N757A BK Zener diode is one of the most common Zener diodes in use today. This diode is able to perform functions of both a traditional diode, as well as a regulator. In this article, we will take a look at the application field and working principle of the 1N757A BK Zener Diode.

Application Field

The 1N757A BK Zener Diode is primarily used as a voltage regulator or shunt regulator. In this application, it is able to regulate voltage in many different electrical devices, such as cell phones, radios, and other electronic components. The diode can be used in standard horizontal line applications, vertical line applications and also in low power applications such as battery-powered devices. The 1N757A BK is also frequently used as a surge suppressor, as it is capable of protecting devices from over-voltages.

Working Principle

The 1N757A BK Zener Diode is able to act as both a diode and a Zener diode at the same time. As a diode, it is able to conduct current when a voltage is applied in the correct direction. As a Zener diode, the 1N757A BK is able to regulate voltage, since it has a characteristic known as the "Zener Breakdown Voltage" that allows it to cut off any additional voltage once it has reached a predetermined level. The Zener Breakdown Voltage is basically a value which determines the amount of current that may pass through the diode when a certain amount of voltage is applied. This prevents the current from rising due to an additional voltage being applied, thus regulating the voltage.

Conclusion

The 1N757A BK Zener Diode is an incredibly versatile piece of electronic component. With the ability to act as a diode, a Zener diode, a voltage regulator, and a surge suppressor all in one package, this diode is a useful asset to any project. With its application in many different devices, and its simplistic working principle, it is easy to understand why it is one of the most popular Zener diodes in use today.

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