SM6S17AHE3/2D

The SM6S17AHE3/2D is a transient-voltage-suppression (TVS) diode. TVS diodes, also known as suppressors, are designed to protect sensitive electronics from energy disturbances. When the input voltage increases above the device\'s breakdown threshold voltage, the TVS diode will shunt the excessive voltage to ground and effectively protect the electrical system. TVS diodes come in a variety of configurations, depending on the type of protection required.

Application Field
SM6S17AHE3/2D is used primarily in power electronics applications, such as digital electronics, SMPS, telecommunications, and automotive systems. It is especially suited for devices that require high voltage and high current capabilities, as well as EMC protection. The device is typically used to protect power supply circuits, or lines connected to high capacitance loads.

Working Principle
The SM6S17AHE3/2D device is a low capacitance thyristor (LCT) that comprises a high current thyristor (HCT) mounted on a low voltage thyristor (LVT) substrate. The LVT substrate acts as a low pass filter element and reduces the surge voltage prior to the high current thyristor being triggered. This action allows the surge peak voltage to be reduced below the breakover voltage of the HCT, allowing the device to shunt the surge current to ground through the HCT. The device will shunt excessive voltage to ground until it drops below the breakdown threshold. Once the voltage is below the threshold, the device will reset and the protected circuit will resume normal operation.

The SM6S17AHE3/2D is designed to handle up to 6-kV surge voltages, and will effectively protect sensitive systems from electro-static discharge (ESD), electrical over-stress (EOS), transient induced faults, and lightning induced surges. The device can be used both in AC and DC applications, and can dissipate up to 600 W peak power. It has a clamping voltage of just 15 mV, and typical response times of just 5 ns.

The SM6S17AHE3/2D device offers superior protection for a wide variety of applications, including telecommunications, industrial, automotive, and medical. It is constructed with a UL-certified home molding compound, and is 100% burn-in and load tested.

In conclusion, the SM6S17AHE3/2D is a versatile and reliable TVS diode that can be used for a variety of applications, from power supply protection to EMI/RFI control. It is capable of withstanding up to 6 kV surge voltages, and provides superior performance in even the most demanding environments.