1N4967

Series:	--
Packaging:	Bulk
Part Status:	Active
Voltage - Zener (Nom) (Vz):	24V
Tolerance:	±5%
Power - Max:	5W
Impedance (Max) (Zzt):	5 Ohms
Current - Reverse Leakage @ Vr:	2µA @ 18.2V
Voltage - Forward (Vf) (Max) @ If:	1.5V @ 1A
Operating Temperature:	-65°C ~ 175°C
Mounting Type:	Through Hole
Package / Case:	E, Axial
Base Part Number:	1N4967

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1N4967 - Overview

1N4967 is a Zener diode, and is one of the most common types of semiconductors. It is composed of a PN junction in a single piece and is capable of regulating electric current. Zener diodes can prevent too much current from passing through the device, making them an essential component for many electronic applications. The 1N4967 makes use of its ability to conduct electricity in one direction, and to block current in the other, with a typical forward current of 1mA.

1N4967 Application Field and Working Principle

The 1N4967 is used in many types of electronic circuit designs, especially those involving power supplies. It is commonly used to prevent circuits from being overloaded or damaged due to over-voltage, over-current, and other faults. In power supplies, 1N4967 can be used to regulate voltage and current levels, by allowing a part of the voltage/current to "bleed" into a separate part of the circuit. This can help protect other components of the circuit and enable the control of current and voltage.In addition to power supply applications, 1N4967 can also be used for protection in most other types of circuits. Its most common application fields are in protection against overloads and in attenuators where it can act as a voltage divider. 1N4967 diodes can also be used as precision current sources, temperature sensors, temperature-dependent voltage sources and voltage references for high-precision designer circuits.To understand the operation of 1N4967 Zener diodes, it must first be understood that all semiconductors, including Zener diodes, consist of an N-type material and a P-type material. The P-type material contains positive charge carriers and the N-type material contains negative charge carriers. A junction between a P-type material and an N-type material forms a diode, which acts like a one-way valve by allowing current to flow in one direction and not the other.When a voltage greater than the diode\'s breakdown voltage (also known as the Zener voltage) is applied across the diode, a breakdown current will flow. This breakdown current is an avalanche current, and it is typically several times greater than the standard reverse leakage current (the current that passes the diode when no voltage is applied). This breakdown current is limited by the Zener resistance of the diode, which varies with temperature.The higher breakdown current allows a constant voltage to be maintained across the diode. This can be used to provide a regulated voltage source that has a high accuracy, low noise, and minimum temperature drift.The 1N4967 has a breakdown voltage of 6V and an operating current of 1mA. The Zener resistance is fairly constant beyond a voltage of 6V, resulting in an accurate and low noise regulated voltage. The temperature coefficient of the Zener voltage is also low, resulting in low temperature drift.

Conclusion

1N4967 is a type of Zener diode which is used in many types of electronic circuit applications. It can be used to regulate voltage and current levels, as well as for protection against overloads and in applications such as voltage dividers. The 1N4967 has a breakdown voltage of 6V and an operating current of 1mA, and its Zener resistance is virtually constant beyond this allowing a regulated voltage with high accuracy, low noise, and minimum temperature drift.

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