JANTX1N4982CUS

Series:	Military, MIL-PRF-19500/435
Packaging:	Bulk
Part Status:	Active
Voltage - Zener (Nom) (Vz):	100V
Tolerance:	±2%
Power - Max:	5W
Impedance (Max) (Zzt):	110 Ohms
Current - Reverse Leakage @ Vr:	2µA @ 76V
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 to JANTX1N4982CUS

The JANTX1N4982CUS is a single Zener diode designed specifically to provide stable voltage regulation and low power dissipation. The anode has a band indicating the nominal Zener voltage and is polarity sensitive, meaning that current flows in one direction only. It is packaged in a small, SOT-23, 3-pin plastic surface mount package and comes in a variety of Zener voltages from 2.4 to 75 Volts, making it suitable for a wide range of applications.

Application of JANTX1N4982CUS

The JANTX1N4982CUS is mainly used for the protection of delicate electronics from voltage spikes or transients. It is suitable for low-power applications where low dissipation is required, such as voltage regulators for memory and network cards, input protection of data lines, and battery protection circuits. The Zener diode can also be used in other applications such as voltage clamping and isolation, surge protection, and voltage alignment.

Working Principle of JANTX1N4982CUS

The JANTX1N4982CUS Zener diode works on a principle known as the Zener effect. This effect occurs when the voltage across the diode is higher than the Zener voltage (VZ) of the diode. When the voltage reaches this threshold the diode conducts in the reverse direction and the excess voltage is dissipated as heat. The diode will continue to conduct in the reverse direction until the voltage drops below the breakdown voltage. During this process, current passes through the diode in order to keep the voltage constant, creating a stable voltage supply. The Zener diode acts like a voltage-regulator, providing a consistent supply voltage despite fluctuations in the input voltage.

Conclusion

The JANTX1N4982CUS is a single Zener diode which is commonly used for low-power applications where low dissipation is required. The diode works on the principle known as the Zener effect and is suitable for many applications such as voltage protection, surge protection, voltage clamping, and isolation. It is available in a wide range of Zener voltages and packaged in a SOT-23, 3-pin plastic surface mount package, making it conveniently suitable for a variety of applications.

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