M1.5KE120A

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M1.5KE120A is part of the Transient Voltage Suppression (TVS) diodes family. It is a silicon standoff avalanche diode with features such as fast response times, low capacitance, high clamping capability, and a low reverse leakage current. It is designed to provide protection for sensitive electronic circuits against voltage transients.

The TVS diode M1.5KE120A can be applied more than one area. The first one is to protect communication systems. It can work as a fast response protector for RS-232 data lines, EIA530, ECL, ISDN, and other communication systems, which are required fast and effective lightning protection. The second area is to protect an electronic circuit from Power Overload. It can maximum clamping the voltage within 500V, so that it can provide almost instantaneous protection against surges or spikes. Besides, it can guard the signal line or power line against ESDs and other harmful transient voltages.

The working principle of a M1.5KE120A TVS diode is straightforward. It is a two-terminal resistor-like electronic component with an anode and cathode. It has a higher breakdown voltage on the anode side compared to the cathode, so when a certain voltage level exceeds the breakdown voltage, it can allow electricity to flow from the anode to the cathode, thereby “clamping” the voltage. The principle is similar to the gas discharge tube - when the voltage exceeds the breakdown voltage, a gas discharge occurs and the voltage is quickly “clamped” at that level.

In conclusion, M1.5KE120A is a useful and resilient TVS diode for preventing costly circuits from malfunction or short-circuiting when hit with transient voltage. It supplies robust performance, a fast response times, and a low capacitance factor, making it ideal for communication systems and preventing power overloads. With the workings as explained, it is no surprise that this diode is increasingly used in the electronic industry.

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