1N4479 TR

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

1N4479 diode is a kind of Zener single diode, which has the advantages of single Zener diode, of which the most important one is its reverse blocking performance. Unidirectional voltage can overcome the reverse breakdown voltage, thus can bias the current flow in the opposite direction, which can be used to construct the circuit performing AC and DC isolation or blocking.

Compared with other types of diodes, 1N4479 diodes are more suitable for the environment that require higher power, long life and small volume. In the area of applications, the 1N4479 Zener diodes are widely used for short-term voltage overshoot or for protection against faster transient conditions such as those encountered in electrostatic discharge protection circuits, surge noise protection circuits and voltage clamping.

The working principle of 1N4479 diode is relatively simple and straightforward. When the applied voltage is less than the Zener voltage of the diode, it starts to conduct current and the resistance of the diode will decrease. When the voltage is equal to or greater than the Zener voltage of the diode, the breakdown current flows through the diode, making the diode to the “on” state, thus bypassing any further voltage increases to the circuit.

In addition, 1N4479 diode also has the advantage of operation in both directions, thus its reverse current can be kept at an extremely low level. In operation, its reverse leakage current is quite small, which helps to increase the efficiency of the circuits. This also eliminates the need to use additional diodes for reversed polarity protection.

Moreover, its operating temperature range is quite broad, which allows it to be used in wide temperature range applications. Its operating temperature range is from -55℃ to 125℃, which means it can be used even in extremely high temperatures. It also has a Low capacitance, making it suitable for decoupling high frequency signal paths.

1N4479 single diode is one of the most commonly used diodes in today’s circuit design. Furthermore, 1N4479 Zener diode is suitable for constructions of AC and DC isolation or blocking circuits and is also perfect for transient protection circuits.

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