SM5S12AHE3_A/I

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TVS - Diodes are two terminal semiconductor devices that protect circuits and components from transient voltage surges such as electrostatic discharge. The SM5S12AHE3_A/I is a diode specifically designed for such applications. This diode is a low capacitance series of unidirectional TVS, designed to protect a variety of high speed data interfaces, such as USB, HDMI, DVI, Fibre Channel, Ethernet, ESD, and audio/video equipment. It is the optimal solution for protecting sensitive electronics.

The SM5S12AHE3_A/I uses an avalanche breakdown structure. It will conduct current when the voltage exceeds the peak working voltage. The device comprises an avalanche junction, made from a series of doped materials. An external field is applied which increases the current which, when it exceeds the breakdown level, creates a large number of free electrons and holes. These carriers are accelerated to sufficient energies, causing chain reactions in which their impact results in additional electron-hole pairs, resulting in an avalanche of current.

The device has a low capacitance, which reduces the effect of interference on signals. This is due to the junction being separated from the connecting lines by several thousand Angstroms, creating an ideal “insulating” layer. This provides a low impedance path and a stable non-conductive state. Additionally, the high breakdown voltage ensures that the device remains non-conductive for higher voltage situations.

The SM5S12AHE3_A/I is specifically designed to protect high-speed data interfaces from over-voltage transients. It is a lateral bi-directional device with a peak working voltage of 5.0V and an ESD rating of 10kV, making it ideal for protecting data lines from electrostatic discharges. It has a low capacitance of 0.8pF, which reduces interference on signals being sent through the lines. Additionally, its wide temperature range ensures reliable protection under a variety of conditions. The device is offered in a SOD-323 package and is UL, CSA, and TUV approved.

The SM5S12AHE3_A/I is a versatile diode that offers a wide range of protection in a small form factor. Its low capacitance and high ESD rating make it perfect for protecting a variety of sensitive electronics, including high-speed data interfaces. Further, its UL, CSA, and TUV certifications attest to its dependability and safety.

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