1N4927A

Series:	--
Packaging:	Bulk
Part Status:	Active
Voltage - Zener (Nom) (Vz):	19.2V
Tolerance:	±5%
Power - Max:	500mW
Impedance (Max) (Zzt):	75 Ohms
Operating Temperature:	-55°C ~ 100°C
Mounting Type:	Through Hole
Package / Case:	DO-204AH, DO-35, Axial
Supplier Device Package:	DO-35

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

1N4927A Application Field and Working PrincipleDiodes play a vital role in the functioning of electronic equipment, particularly those dealing with sensitive circuits like computers, LEDs, and radio devices. 1N4927A is a diode specifically designed for the purpose of controlling voltage and current across a circuit, known as a Zener diode. The term "1N4927A" itself not only describes the particular type of diode, but also gives a direct map to its application field and working principle.1N4927A is a Zener diode, which functions as a voltage regulator. It is constructed from semiconductor materials and its two terminals are connected directly to the diode’s thin film layer, rather than to contacts on the semiconductor material like in standard diodes. This structure allows for greater control of the voltage and current flowing through the diode and the ability to better regulate these levels. 1N4927A Zener diodes are designed with a higher power rating than standard diodes and are generally used in situations where the voltage or current is expected to exceed the expected level.The working principle of a 1N4927A diode is quite simple. The diode allows current to flow in one direction only, and blocks it from flowing in the other direction, just like a regular diode. When the reverse bias voltage of the 1N4927A reaches a certain level, the current through it will increase to a specified value, allowing the user to precisely control the flow of current. This is known as “Zener breakdown” and is the basis of the diode’s functioning.As with any other diode, the 1N4927A can be used in a wide variety of applications, including voltage regulation, current sensing, over-voltage protection, and more. One of the major uses of this type of diode is in power supply design. It is used to regulate the supply voltage in cases where the input voltage is higher than the required output. Additionally, it can be used to protect sensitive electronic equipment, such as computer components, from damage caused by over-voltage.The 1N4927A diode is also used for current sensing, for example when a constant flow of current is necessary for the functioning of a device. The diode is placed in parallel with the load and connected to a high-impedance meter, which is capable of detecting even small fluctuations in the current. In this way, the device can detect an increase or decrease in current, and can adjust accordingly to maintain the stable current necessary for proper operation.Finally, 1N4927A diodes can be used to protect sensitive equipment from high voltages caused by lightning strikes, electrostatic discharge and other such phenomena. These diodes act as a “valve” to protect the electrical components from such voltage spikes, thereby preventing costly and dangerous damage.In short, 1N4927A is a type of diode specifically designed to regulate and control the flow of electricity and current. Its unique construction makes it useful for a wide range of applications, particularly where precise control of the voltage and current is necessary. This type of diode is particularly versatile when it comes to protecting sensitive electronic equipment from damage due to high voltages and lighting strikes.

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

Part Number	Manufacturer	Price	Quantity	Description