1N4969

Series:	--
Packaging:	Bulk
Part Status:	Active
Voltage - Zener (Nom) (Vz):	30V
Tolerance:	±5%
Power - Max:	5W
Impedance (Max) (Zzt):	8 Ohms
Current - Reverse Leakage @ Vr:	2µA @ 22.8V
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:	1N4969

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Diodes - Zener - Single - 1N4969 Application Field and Working Principle

The 1N4969 is a Zener diode, which is a semiconductor device used in a variety of applications. It is designed to allow current to flow in one direction, blocking current in the reverse direction, and is often used as a voltage regulator or for protection against over-voltage transients. This article provides an overview of the 1N4969 application field and working principle.

Application Field

The 1N4969 Zener diode is used in many different applications, including power line regulation, television receivers, over-voltage protection, AC line filtering, mobile phones, automotive circuits and act as a free-wheeling diode. It is also used in switching power supplies, linear voltage regulators, voltage references and over-voltage protection circuits.Because of its high power dissipation ratings and low forward voltage drop, the 1N4969 is ideal for use in high power AC/DC power supplies and DC/DC converters. It is also used as a transient suppressor to prevent overturning transients from damaging other components in the circuit.The 1N4969 offers low power dissipation, low reverse current and low reverse leakage. As a result, it is widely used for protection against over-voltage transients. In addition, its low on-resistance and low forward voltage drop makes it well suited for use in high-performance AC/DC power supplies and DC/DC converters.

Working Principle

The 1N4969 Zener diode is a two-terminal device that is constructed with a semiconductor material such as silicon or germanium, which is of a high purity allowing it to have a high breakdown voltage. It works by allowing current to flow in only one direction, and blocking current in the reverse direction.When the forward voltage on the anode is increased, current flows through the diode towards the cathode. As the voltage increases, it eventually reaches the Zener Breakdown Voltage (VZ), which is the voltage at which the diode begins to conduct current in the reverse direction. This breakdown voltage is determined by the material and purity of the p-n junction.Once the Zener Breakdown Voltage (VZ) is reached, it allows current to flow in the reverse direction, but with a much reduced current as compared to the forward direction. This ensures a stable voltage is maintained on the anode for current flow in either direction.The 1N4969 is designed to provide protection against over-voltage transients, and the Zener diode will clamp the voltage to the Zener Breakdown Voltage (VZ). If the transient exceeds the Zener Breakdown Voltage (VZ), the diode will begin to conduct current in the reverse direction, thus protecting the other components in the circuit from the over-voltage.

Conclusion

The 1N4969 is a Zener diode widely used in high power AC/DC power supplies, DC/DC converters, voltage references, over-voltage protection circuits and other applications. It works by allowing current to flow in one direction and blocking current in the opposite direction. When the forward voltage exceeds the Zener Breakdown Voltage (VZ), it allows current to flow in the reverse direction, but at a much reduced rate, thus providing a stable voltage. The 1N4969 is specially designed to offer low power dissipation, low forward voltage drop and low reverse current for protection against over-voltage transients.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description