1N5279A

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

The 1N5279A diode is a form of zener diode, a form of diode intended to be used primarily in the reverse bias mode of operation. As a result, the 1N5279A is categorised as a single zener diode. This type of diode provides a regulated voltage on its reverse-biased load, allowing it to act as a form of voltage regulator.

The 1N5279A is designed for a number of specific applications, typical of these applications include reverse bias voltage reference, voltage clamp, and reverse voltage spike protection for electronic circuits. Many of these applications are achieved in a similar way; through the use of the zener breakdown effect.

The breakdown effect is a phenomenon which occurs when the reverse-biased voltage applied to a diode increases its current to levels far beyond that of a regular junction diode. This breakdown effect occurs with a zener diode when the breakdown voltage is reached, the breakdown voltage is the voltage level at which the zener diode current starts to flow; in the case of the 1N5279A, this voltage is 5.6V.

When the breakdown voltage is reached, the current through the diode is limited by its internal resistance and the voltage across the diode is maintained at a constant at the breakdown voltage. This constant voltage is known as the zener voltage. As a result, the zener diode acts as a voltage regulator, providing a regulated voltage when the breakdown voltage is reached.

The ability of the 1N5279A to provide a regulated voltage across its reverse-biased load is the main application of this diode, the regulated voltage being set to the zener voltage and the diode current being limited to the diode resistance. The 1N5279A diode is also used as a voltage clamp due to its constant voltage function; if the forward-biased voltage applied is greater than the zener voltage,the diode will conduct,clamping the voltage to the zener voltage.

The 1N5279A is also used in reverse voltage spike protection applications, using the combination of the zener breakdown voltage and the relatively low maximum reverse current of the diode to effectively protect the circuit from the harmful effects of a reverse-biased high current spike.

In summary, the 1N5279A is the most common variant of the zener diode and is mainly used for applications such as reverse bias voltage reference, voltage clamp, and reverse voltage spike protection. The 1N5279A is designed to provide a voltage clamp to a reverse-biased load, or a regulated voltage across it, by using the breakdown effect upon reaching the zener breakdown voltage. The 1N5279A also provides reverse voltage spike protection, using its relatively low maximum reverse current to protect the circuit from damage.

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