SM15T18AHE3/57T

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TVS (Transient Voltage Suppressor) diodes are electronic components commonly used in electrical circuits. They function as a protection device, protecting the circuit from overvoltage. The SM15T18AHE3/57T is a type of TVS diode that offers reliable protection from transient overvoltages in power supply applications. It\'s typically used in electronic products such as televisions, computers, and audio equipment.

The SM15T18AHE3/57T is a Silicon-based TVS diode that is designed to protect circuits from high voltage transients. It has a bidirectional avalanche rating with an operational voltage rating between 15 and 18V, and an adjustable peak pulse power rating of up to 57A. The device is available in two package styles, including a Do-214 package and a D2PAK package.

The main application field of the SM15T18AHE3/57T is in power supply applications, where it is used to protect sensitive electronic components from transients such as lightning or electrostatic discharge (ESD). By using the SM15T18AHE3/57T, equipment manufacturers can ensure that their devices will be protected from transients that could otherwise cause component failure or even fire.

The working principle behind the SM15T18AHE3/57T is based on the avalanche current breakdown voltage. When an avalanche voltage is applied, large quantities of electrons are released and quickly spread out across the device. This rapid breakdown of the voltage pulse provides protection to the circuit against the transient voltage.

The SM15T18AHE3/57T is designed to absorb the fault energy and clamp the voltage at a safe level. The device is able to withstand up to 57A of surge current to protect against voltage transients of up to 18V. The current requirement is determined by the peak pulse power rating of the device.

In summary, the SM15T18AHE3/57T is a TVS diode which offers reliable protection from transient overvoltages in power supply applications. It is used to protect circuits from high voltage transients, and works on the principle of avalanche current breakdown to absorb the fault energy and clamp the voltage. The device is able to withstand up to 57A of surge current to protect against voltage transients of up to 18V.

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