SM6T200CAHE3/52 Circuit Protection

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The SM6T200CAHE3/52 is a type of unidirectional Transient Voltage Suppressor Diode (TVS). This diode is designed to protect sensitive equipment like computer and communication systems from over-voltage and electric surges. It is also ideal for protecting circuits connected to long transmission lines, automobiles, and other sensitive applications. The SM6T200CAHE3/52 offers superior ESD (electrostatic discharge) suppression and is compatible with high-voltage applications up to 200V. In addition, it features an effective clamping voltage of 152V and a peak pulse power rating of 162W.

The SM6T200CAHE3/52 TVS diode consists of a semiconductor junction with a reverse breakdown voltage characteristic typically between breakdown voltage and peak pulse power rating. When connected to a circuit, the diode begins to conduct only when the voltage across the diode reaches its rated breakdown voltage. If the voltage rises beyond the rated breakdown voltage, the diode turns on, clamping the voltage to a level below the rated breakdown voltage. This action diverts the surge energy away from the circuit and helps protect it from over-voltage and electric surges.

The working principle of a TVS diode is based on the principle of reverse-bias pn-junction. The diode is connected in reversed bias with the anode end connected to the positive voltage terminal and the cathode end connected to the negative voltage terminal. The diode is reverse biased, which means it does not conduct until the peak voltage reaches its rated breakdown voltage. When the reverse voltage reaches its rated breakdown voltage, the diode turns on and the stored charge redirects the excess current away from the device to the ground. As the applied voltage falls, the impedance of the diode decreases, and the current is diverted back to the circuit. This helps maintain the circuit’s voltage at a safe level.

The SM6T200CAHE3/52 TVS diode is effective in a wide range of operating temperatures, from -55°C to +150°C. This wide temperature range makes the diode suitable for a variety of applications including automotive, telecom, industrial, and domestic applications. The SM6T200CAHE3/52 is suitable for overvoltage protection of various printed circuit board components and is an ideal choice for protecting boards, ICs, and delicate components from electrical surges and overvoltages.

In summary, the SM6T200CAHE3/52 Transient Voltage Suppressor Diode is an effective tool for protecting sensitive components, printed circuit boards, and other types of electronic equipment from overvoltage and electric surges. It features a wide temperature range and a high peak pulse power rating, making it suitable for a variety of applications. Its reverse-biased pn-junction provides excellent ESD suppression and its clamping voltage helps maintain the circuit’s voltage at a safe level, protecting it from damage. Overall, the SM6T200CAHE3/52 is an excellent choice for protecting circuits and components from dangerous over-voltage and high-voltage events.

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