The Maxim Integrated MAX6375XR31+ is a single-channel voltage detector that monitors a 3.08V threshold and asserts an active-low reset when the supply drops below that level. It is a three-pin device in an SC-70-3 package, with a push-pull output that drives a reset signal to an MCU, FPGA, or other logic without needing an external pull-up resistor. This class of part is common in industrial control boards, telecom line cards, and battery-powered equipment where a clean, low-true reset is required on power-up or brownout.
SC-70-3 is a tiny three-lead package. Surface-mount only, so no socket option. On a field swap, you will need tweezers and a fine-tip iron or hot-air station.
Not automotive-grade (no AEC-Q100 stated), so avoid under-hood or engine-bay applications unless you have your own qualification data. The storage temperature exceeds the operating range, so the part can sit in a field kit or warehouse without issue.