SM5S11AHE3_A/I

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TVS diodes, or transient voltage suppressors, are solid-state overvoltage protection devices used to absorb transient energy and protect semiconductor electronics from voltage surges or inductive spikes. The SM5S11AHE3_A/I is a low-leakage, single common-anode, unidirectional TVS diode with a 5.2V voltage breakdown and 11A maximum current rating. The device is composed of two elements: a positive voltage element and a transient suppressor element.

The common-anode configuration allows the devices to work in either aFly-Away Mode or a Ground Wrap Mode. In Fly-Away Mode, the positive terminal is connected to ground via a resistor, while the negative terminal is connected to the equipment. The voltage element is triggered when a steep rise in voltage is detected, instantly separating the positive and negative terminals and grounding the positive terminal in the surrounding environment. In Ground Wrap Mode, the positive terminal is connected directly to the equipment’s ground, and the negative terminal is connected to the power supply. The voltage element is triggered when a steep rise in voltage is detected, instantly separating the positive and negative terminals and disconnecting the connection between the positive terminal and the ground.

The voltage element activates a short-exposure rated current to facilitate the flow of charge through the transient suppressor element. This current quickly rises, and as the current passes through the TVS diode, the transient suppressor element rapidly absorbs the transient energy, preventing it from reaching the protected device. The transient suppressor is able to do this because of its high surge capability and its reverse stand-off voltage of 5.2V. The transient suppressor also has a low supply leakage current, which means it takes little power to operate the device.

The SM5S11AHE3_A/I is commonly used to protect electronics from transient voltage spikes and surge currents generated by lightning, power grid fluctuations, and electrostatic discharge. It can be found in a variety of applications from consumer electronics like cell phones, laptops, and tablets to industrial plants or automotive applications. Furthermore, it is ideal for use in low breakdown voltage applications such as semiconductor circuits, where fast response times and low leakage current are required.

In conclusion, the SM5S11AHE3_A/I is a type of TVS diode designed to protect electronics from voltage spikes, surge currents, and electrostatic discharge. Its common-anode configuration allows it to operate in either Fly-Away Mode or Ground Wrap Mode, while its voltage element and transient suppressor element absorb transient energy and quickly dissipate the current without compromising the integrity of the equipment. It can be used in a wide range of applications, from consumer electronics to automotive and industrial projects, and it is ideal for low breakdown voltage applications.

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