SMCG45A-E3/9AT

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

TVS - Diodes

TVS (Transient Voltage Suppressor) diodes are semiconductor devices which protect the connected electronics by providing a short and heavy current through the diode. It is a special kind of diode that has a very low threshold voltage and is designed to safely absorb and dissipate excess or transient voltage. TVS diodes offer several advantages over other components, such as EMI/RFI filters, limiting voltage transients, and protecting circuits from other types of destructive voltage transients.

The most common application of TVS diodes is for protecting sensitive electronic circuits from over-voltage transients due to lightning, power supply glitches, or electrostatic discharges. TVS diodes are typically used at the power supply input to the system to provide a relatively low initial clamping voltage. They can also be used to protect other lines such as signal lines, data lines, and communication lines.

SMCG45A-E3/9AT is a TVS diode, which has a high peak pulse power (900W) and low operating voltage (5V-18V) with a peak pulse current of 28A. It is used for transient overvoltage protection and is ideal for use in applications such as automobiles, aviation, phones, and computers. SMCG45A-E3/9AT can also be used in home appliances, as they provide a reliable EMC protection.

The working principle of TVS diodes is based on a simple diode protected voltage transient dissipater which consists of two independent valves: a reverse biased avalanche diode and a reverse biased Zener diode. When a transient voltage (signal or spike) appears on the line, the reverse biased Zener diode is illuminated and clamps the voltage to a preset value. At the same time, the avalanche diode dissipates the excess energy created by the transient voltage by conducting current to ground.

TVS diodes provide very high-speed protection for sensitive electronic components and are able to withstand instantaneous over-voltage transients due to their low clamping voltage and their low trigger voltage. As it is a highly reliable protection component, TVS diodes are increasingly being used in modern applications. SMCG45A-E3/9AT is a perfect candidate for a wide range of applications where transient voltage is likely to happen.

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