SM15T100A-E3/57T Circuit Protection

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TVS - Diodes provide surge protection for a wide variety of electronic components. The SM15T100A-E3/57T Accelerometer is an example of a TVS diode used for protecting sensitive analog and digital circuits from voltage spikes and surges. This device has applications such as airbag modules, onboard ECUs, driver assistance systems, and industrial automation.

The SM15T100A-E3/57T is a bidirectional, low-capacitance, temperature-stable TVS diode. It is a 230VAC Surge rating with an ESD surge rating of 8kV, making it a highly effective surge protection device. It is also designed with a low capacitance of less than 5pF and a low leakage current of below 1µA. These features make the device suitable for protection of CMOS logic gates.

The SM15T100A-E3/57T has a general-purpose, parallel arrangement of two, non-isolated, individually controlled, bidirectional TVS diodes. This parallel arrangement allows for the fast switching of the current. Additionally, the device also has a fail-safe function that is triggered in the event of a device failure, thus ensuring operational safety. The SM15T100A-E3/57T also has a temperature-sensitive fuse that is automatically triggered if the peak impulse energy exceeds the rated value.

The SM15T100A-E3/57T is designed to protect against transients of up to 1000V. The SM15T100A-E3/57T\'s protective characteristics are such that its device does not suffer any damage while clamping and suppressing EMI noise and surges. Additionally, the device operates at a low operating voltage of 15V and has a clamping voltage of 10V, which makes it suitable for use in applications such as automotive electronics, medical and aerospace equipment.

The working principle of the SM15T100A-E3/57T is simple. It is designed to provide overvoltage protection by acting as a “crow-bar” element. When an overvoltage event occurs, the device conducts current and effectively shorts out the affected circuitry. In doing so, it dissipates the energy that would have otherwise damaged the protected circuitry. The device is designed to protect against both normal overvoltage events and ESD events. In the case of an ESD event, the device clamps the voltage and absorbs the energy, thus providing the necessary protection from transient voltage.

The SM15T100A-E3/57T is ideal for a wide range of electronic components and devices, from automotive ICs and systems, to medical and aerospace equipment. Its low capacitance, low leakage current and temperature-stability make it an ideal choice for protection against transients and ESD, thus ensuring the operational safety of the protected circuits.

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