JANTX1N4989DUS

Series:	Military, MIL-PRF-19500/435
Packaging:	Bulk
Part Status:	Active
Voltage - Zener (Nom) (Vz):	200V
Tolerance:	±1%
Power - Max:	5W
Impedance (Max) (Zzt):	500 Ohms
Current - Reverse Leakage @ Vr:	2µA @ 152V
Voltage - Forward (Vf) (Max) @ If:	1.5V @ 1A
Operating Temperature:	-65°C ~ 175°C
Mounting Type:	Surface Mount
Package / Case:	E-MELF
Supplier Device Package:	D-5B

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Introduction

Diodes form an important part of the circuitry in many electronic components. Among all types of diodes, Zener diodes are widely used in today\'s electronic products due to its special functionalities. As one type of Zener diodes, JANTX1N4989DUS has various applications in the industrial field. This article explores the applications of JANTX1N4989DUS and its working principle.

Applications

The JANTX1N4989DUS, also known as a Complementary Metal–Oxide–Semiconductor (CMOS) voltage regulator is generally used for regulating output voltage. By placing two back-to-back, low-impedance Zener diodes, this device is able to provide greater accuracy and all-around protection to the circuit it is connected to.JANTX1N4989DUS is most commonly used for regulating a voltage in the range between 4.7 and 12 volts. Due to its superior quality, it is widely used in the automotive industry, industrial automation systems, process control systems and power supplies.

Working principle

The device is composed of two Zener diodes, connected in an anti-parallel configuration. The voltage regulator works by diverting the excess voltage to one of the diodes depending on the output voltage level and determining the appropriate Zener voltage.When an input voltage is applied, an electrical current passes through one diode and is limited by the breakdown voltage of this diode. At the same time, the current supply is also limited by the breakdown voltage of the other diode, which is connected in opposite polarity. When the input voltage reaches a certain specific point, the current supply is instantaneously diverted to the Zener diode with the lowest breakdown voltage.This regulation process keeps the output voltage stable regardless of fluctuations in the input voltage, thus providing robust protection to the circuit.

Conclusion

The JANTX1N4989DUS is a versatile device due to its ability to provide stable and reliable output voltage in the 4.7-12 volt range. Its wide range of applications includes automotive, industrial automation and process control systems, demonstrating its potential for the industrial world.The device performs its output regulation in a unique manner. In the JANTX1N4989DUS, two Zener diodes are connected in an anti-parallel configuration, allowing the device to use whichever Zener diode with the lowest breakdown voltage at the time, thus maintaining a stable output.Overall, the JANTX1N4989DUS is an incredibly useful device and is essential for achieving robust circuit protection and reliable performance in industrial applications.

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