1N984A

Series:	--
Packaging:	Bulk
Part Status:	Active
Voltage - Zener (Nom) (Vz):	91V
Tolerance:	±10%
Power - Max:	500mW
Impedance (Max) (Zzt):	400 Ohms
Current - Reverse Leakage @ Vr:	5µA @ 69.2V
Voltage - Forward (Vf) (Max) @ If:	1.1V @ 200mA
Operating Temperature:	-65°C ~ 175°C
Mounting Type:	Through Hole
Package / Case:	DO-204AA, DO-7, Axial
Supplier Device Package:	DO-7

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Diodes - Zener - Single

The 1N984A is a single zener diode that performs tasks in specific application fields. The purpose of a single zener diode is to maintain a constant voltage between two points, regardless of the incoming voltage or current level. Zener diodes are often used as voltage references, or as safety devices when a higher voltage than what is expected is expected.

Function

The 1N984A is a single zener diode that prevents alternating current (AC) or direct current (DC) voltages above a certain level from passing through it. This diode has a breakdown voltage between 4 and 4.5 volts, and can handle power up to 500 milliwatts. If a voltage greater than 4.5 volts attempts to go through the diode, the excess voltage is diverted around the load, and the load voltage is maintained within the normal range.

Applications

The 1N984A is often used in voltage regulation circuits, where it helps regulate the voltage applied to a load. It can also be used as a voltage reference in circuits with a single power supply, or as a component in a voltage multiplier or peak detector circuit. This diode is increasingly used for the protection of circuits and sensitive components from overvoltage, as it can handle higher currents than other zener diodes.

Working Principle

The 1N984A works on the principle of reverse breakdown. Zener diodes have a fixed reverse voltage rating called the Zener voltage. This Zener voltage is the point at which the diode starts to conduct in reverse. When the voltage across the diode reaches the Zener voltage, a very large amount of current begins to flow through the diode. This current is called a Zener current.The Zener current is what helps maintain a constant voltage across a load. When the voltage starts to rise, the Zener diode will start to conduct a current, which in turn causes the voltage to remain stable. The diode\'s Zener voltage determines the amount of current that is conducted, and the amount of voltage that is maintained across the load. This current flow helps to counteract any changes in the input voltage or current and ensure a stable output voltage.

Conclusion

The 1N984A is a versatile single zener diode that can be used in a variety of applications. This diode helps regulate the voltage applied to a load and maintain a steady voltage between two points. It can also be used as a voltage reference or for protection against overvoltages. It works by employing the principle of reverse breakdown, where a Zener voltage is reached and a large current is conducted to help maintain a constant voltage across the load. This diode offers a cost-effective and reliable solution for voltage regulation, voltage reference, and protection needs.

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