SM6T220AHE3/52 Circuit Protection

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A Transient Voltage Suppressor (TVS) diode, such as the SM6T220AHE3/52, is a specialized type of diode designed to protect against over-voltage transients. It is a solid state device that uses the voltage clamping principle to protect against electric loads. When a transient voltage occurs, it acts as a short circuit and diverts the surge current away from the protected element, thus preventing damage.

The SM6T220AHE3/52 is a silicon-controlled rectifier (SCR) diode designed for use in 12V systems. It is a low capacitance, bidirectional diode with a peak surge current handling capability of up to 220A. It is designed to protect against over-voltage transients caused by electrostatic discharge, high-frequency noise, power supply surges, and even lightning strikes. It features an ESD immunity level of 30kV and is UL certified for up to 6KV surge withstand. The SM6T220AHE3/52 is an excellent choice for protecting sensitive electronics from transient over-voltages.

The SM6T220AHE3/52 works by clamping the voltage at a pre-defined level. When the voltage exceeds the reverse breakdown voltage, the diode switches on and begins to conduct. When this happens, the device acts as a short circuit and shunts the potentially hazardous voltage spike away from the load. This helps to protect the load from damage while also preventing the surge current from damaging the device itself.

The SM6T220AHE3/52 is commonly used in a range of applications, including computers, communications equipment, consumer electronics and automotive applications. Its fast response time and low capacitance makes it an ideal choice for protecting sensitive electronic circuits from over-voltage induced transients. It also provides excellent protection against ESD, power supply noise, and lightning strikes. In addition, its low dynamic resistance makes it suitable for use in applications where low forward voltage is required.

The SM6T220AHE3/52 is a versatile and reliable device that is well suited for protection against transient over-voltage events. Its combination of fast response time, low capacitance, and high peak surge current handling capability make it ideal for a wide range of applications. Its low dynamic resistance and UL certification also make it an excellent choice for protecting sensitive electronic circuitry from potentially damaging transient events.

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