JAN1N5540D-1

Series:	Military, MIL-PRF-19500/437
Packaging:	Bulk
Part Status:	Active
Voltage - Zener (Nom) (Vz):	20V
Tolerance:	±1%
Power - Max:	500mW
Impedance (Max) (Zzt):	100 Ohms
Current - Reverse Leakage @ Vr:	10nA @ 18V
Voltage - Forward (Vf) (Max) @ If:	1.1V @ 200mA
Operating Temperature:	-65°C ~ 175°C
Mounting Type:	Through Hole
Package / Case:	DO-204AH, DO-35, Axial
Supplier Device Package:	DO-35 (DO-204AH)

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Introduction

The JAN1N5540D-1 is a single, Zener diode commonly used in applications that require a repeatable and precise voltage reference. The diode is designed with a single, low profile package and is fabricated using using standard rectifier diodes to facilitate the reliable performance of even the most demanding applications.

Application Field

The JAN1N5540D-1 possesses a wide range of applications, particularly in the field of voltage regulation. It is employed to create precision references for high-precision applications such as telecommunications, industrial electronics, and computers. The diode also finds common use in test and measurement equipment as well as various voltage-stabilized circuits.The JAN1N5540D-1 can also be used as an overvoltage protection device. When used in this capacity, it serves to limit the voltage potential to a predetermined threshold and prevents further damage to connected circuitry.

Working Principle

The basic working principle of the JAN1N5540D-1 is similar to that of other typical Zener diodes. In a general sense, the diode allows current to flow in either direction depending on the polarity of the applied voltage. This process of current conduction is known as forward biasing. If the polarity of the applied voltage is reversed, the current stops briefly and then begins to surge again. This phenomenon is known as reverse biasing. Under these conditions, the diode produces a precise voltage, independent of applied current.When operating in the forward direction, the diode behaves similarly to that of a normal rectifier diode and allows practically no leakage current. In the reverse direction, however, the diode produces a voltage drop equal to the breakdown voltage. The precise voltages available for the JAN1N5540D-1 range from 6 volts all the way up to 300 volts.

Conclusion

The JAN1N5540D-1 is a single, Zener diode that finds wide use in applications requiring a precise and repeatable voltage reference. It is able to provide reliable current regulation regardless of the pressure or temperature difference between the two terminals. As a result, this diode is an ideal way of ensuring the precision of voltage-dependent applications and can serve as an effective overvoltage protection device in many circuits.

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