SMCJ440A-H

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TVS - Diodes are the most popular form of electrical surge protection devices which are used to protect electrical circuits and components from power surges such as lightning and breakdown of high amplitude electrical shocks. The SMCJ440A-H is a very common and popular TVS-Diode for use in applications like switching power supplies, lighting systems and LEDlamps. The TVS-Diode is comprised of two parts: anode and cathode. It works by providing a low-voltage, low-current path from the anode to the cathode, allowing the excess current surge from the power source to be diverted away from the load.

The SMCJ440A-H offers a unique combination of capable protection and reliable performance. It has a peak power handling capacity of 400 Watts, which makes it ideal for applications such as lightning protection, high voltage surges generated by electric motors or from switching power supplies, and to protect power lines from over-voltage conditions. The device also features a unique construction design which enables superior clamping performance, reduced thermal shock, and enhanced device reliability. In addition, it has an extremely low reverse leakage current of 1 μA and a peak reverse voltage of 440 V.

The working principle of the SMCJ440A-H is based on the principle of clamping. The device absorbs surges beyond its breakdown voltage and clamps it to a safe level. It also maintains a low reverse leakage current below the peak reverse voltage, thus lowering the voltage across the load and preventing it from being damaged or destroyed. This makes the TVS-Diode an excellent choice for protecting sensitive electronic circuits from a variety of power surge situations.

The application field of the SMCJ440A-H is extensive and covers a wide variety of systems. It is commonly used in lightning protection systems, power supply and motor protection, board protection for digital systems, telecom systems, optical communication systems, and other sensitive components. Additionally, due to its remarkable robustness and dependability, the device is also ideal for applications requiring a long life expectancy, such as solar panel protection and automotive applications.

In conclusion, the SMCJ440A-H is an ideal TVS-Diode for a variety of power surge protection applications. It offers a reliable and capable protection solution for a wide range of systems. The device has a powerful clamping capability that makes it ideal for applications that require superior protection, robustness and reliable performance.

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