SM15T12AHE3/9AT

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TVS (Transient Voltage Suppression) diodes are protective devices used to guard against voltage surges. SM15T12AHE3/9AT is a package of Transient Voltage Suppression (TVS) diode array. This specific part of the array is developed by Diodes Incorporated. It is designed to protect electronic devices and circuits from transient voltage surges. The catalog designator of this diode is SM15T12AHE3/9AT.

The SM15T12AHE3/9AT is a three-terminal device consisting of two silicon junction, unidirectional, ultra-fast-recovery TVS diodes connected in series. Each diode has a trigger voltage rating of 12V. It SUPPORTS an array voltage rating of 600 Watt\'s and a hold current rating of 3AMPS. The maximum reverse leakage current of this diode is 1 micro-ampere. It also has an operating temperature range from -55C to 150C.

The most common application field of SM15T12AHE3/9AT is in telecommunications, consumer electronics, automotive, computer, and analog circuits. This diode can act as an overvoltage protector and a switch in many electrical circuits. It is widely used in circuits that require a high level of protection from overvoltage surges. It can also be used in the signal paths of audio equipment or other sensitive circuits that require protection from voltage spikes.

SM15T12AHE3/9AT works by clamping down or suppressing excessive voltage spikes in the circuit. Its unidirectional feature makes it capable of withstanding high voltages but still providing protection from low-voltage surges. The ultra-fast-recovery feature of this diode allows it to respond quickly and accurately to overvoltage transients.

This TVS-diode can dissipate large amounts of energy in a short period of time. The energy dissipated is proportional to the surge current that the array can handle. To be able to successfully handle and dissipate these transient voltage surges, the SM15T12AHE3/9AT must break down the excess voltage and then use its internal capacitance to reduce the voltage to a safe level. This is done by reverse-biasing the transistor and shifting the current to the drain.

In conclusion, the SM15T12AHE3/9AT Transient Voltage Suppression (TVS) diode is an excellent solution for overvoltage protection of circuits. Its unidirectional and ultra-fast-recovery features make it capable of handling high-voltage spikes without negatively affecting the signal. It is widely used in telecommunications, consumer electronics, automotive, computer, and analog circuits. It can protect sensitive circuits from voltage spikes and surges.

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