The AIC809N-31GUTR is a SOT-23-3 RoHS compliant Microprocessor & Microcontroller Supervisor manufactured by AIC. It is a 3-pin SOT-23 package, less than 1mm thick, that occupies a small area to save precious PCB space. This device is designed to keep your microprocessors in a reset, or powered-off, state until a safe operating environment is established. It monitors system voltages and any changes to the output of the microcontroller or microprocessor, and will automatically reset the ICs when necessary. The AIC809N-31GUTR is ideal for a wide range of system environment applications such as IoT nodes, consumer electronics, personal computers, automotive, and medical devices. It also comes with comprehensive temperature, voltage, and time-based options to make it easy to set your reset thresholds for any desired system operation conditions.