JAN1N4990DUS

Series:	Military, MIL-PRF-19500/356
Packaging:	Bulk
Part Status:	Active
Voltage - Zener (Nom) (Vz):	220V
Tolerance:	±1%
Power - Max:	5W
Impedance (Max) (Zzt):	550 Ohms
Current - Reverse Leakage @ Vr:	2µA @ 167V
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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A Zener diode is a widely used type of diode specially designed for providing a stable voltage reference in many diverse applications. The JAN1N4990DUS is an example of a Zener diode. In this article, we will discuss its application field and working principle.

Application Field of JAN1N4990DUS Zener Diode

The main application field for JAN1N4990DUS Zener diode is to provide a stable voltage reference in the circuit. It can stabilize the voltage in the circuit and help to prevent the voltage from fluctuating. The JAN1N4990DUS is a low-noise, voltage stabilizing diode. It is ideal for use in single or multiple supply systems, temperature compensated applications, and low-noise applications. It can also be used for battery management or in systems that require reliable operation over a large temperature range.The JAN1N4990DUS Zener diode can also be used in audio and instrumentation circuits. It can be used to reduce power supply ripple and electromagnetic interference. Additionally, the JAN1N4990DUS can be used in digital signal processor (DSP) audio applications, to ensure a consistent, stable voltage over the full range of audio frequencies.

Working Principle of JAN1N4990DUS Zener Diode

The JAN1N4990DUS Zener diode is designed to maintain a stable and consistent voltage over a wide operating voltage range. It works by allowing the current to flow in only one direction, and by using a very thin N-type semiconductor layer and a thicker P-type layer. This allows for a higher breakdown voltage. When a voltage is applied to the diode, it creates a depletion region. This region is filled with ions, which increases the breakdown voltage and prevents overvoltage or a voltage spike. As the voltage increases, the depletion region also increases and eventually reaches its breakdown voltage, where the electric current begins to flow. This is the principle behind the Zener diode\'s operation. The JAN1N4990DUS Zener diode has a wide range of operating voltage of 6.2V - 95V. It also features low leakage current and a low reverse-leakage current, making it ideal for many applications, including audio, instrumentation, and power supply design.

Conclusion

The JAN1N4990DUS Zener diode is a widely used type of diode specially designed for providing a stable voltage reference. The main application field for it is to provide a stable voltage reference, and it is suitable for audio, instrumentation, multiple and single-supply systems, and low-noise applications. Its working principle is based on the creation of a depletion region, which increases the breakdown voltage and prevents overvoltage or a voltage spike.

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