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

The JAN1N2979B is a single zener diode model with a 45V breakover voltage. It has a rated power dissipation of 500mW, and an operating temperature range from -65 to 175°C. The static breakdown voltage can be as high as 80V. It also offers an unlimited reverse surge current and a low capacitance for fast switching applications.

Application Field

The JAN1N2979B is a commonly used component for voltage regulation in consumer electronics. It is mainly used for its ability to withstand overpowering voltage surges. It is also well-suited for overvoltage protection applications. As a result, it finds its way into a variety of consumer electronic products where voltage regulation or overvoltage protection is needed. The JAN1N2979B is also used in automotive applications, as it is well-suited for protecting vehicle electronics from voltage surges that can occur during engine start-up.

Working Principle

The JAN1N2979B is a two-terminal device consisting of a semiconductor material. When a reverse voltage is applied to the device, an electric field will be applied to its junction. As the voltage rises above a certain threshold, the electric field will become intense enough to cause current to flow in the reverse direction. This is known as the zener region and the voltage at which this occurs is called the breakdown voltage. The breakdown voltage of the JAN1N2979B is 45V. When the voltage is below this value, it will behave like an ideal diode, blocking current in the reverse direction. When the voltage rises above the breakdown voltage, it will begin to conduct current in the reverse direction. This behavior is useful in voltage-regulation and overvoltage-protection applications.

Conclusion

The JAN1N2979B is a single zener diode with a 45V breakover voltage, 500mW rated power dissipation, and an operating temperature range from -65 to 175°C. It is used for voltage regulation and overvoltage protection in consumer and automotive electronics. The working principle is based on the breakdown voltage of the diode, at which point it will begin to conduct current in the reverse direction. Thus, the JAN1N2979B is an ideal component for providing reliable voltage regulation and overvoltage protection for a variety of electronics.

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