The Maxim Integrated MAX6511UT115 is a remote temperature switch designed to monitor the temperature of an external diode-connected transistor (typically a CPU, GPU, or FPGA's substrate diode) and assert a logic output when the temperature crosses a factory-programmed threshold. Unlike a local temperature sensor that measures its own die temperature, a remote switch reads the junction of a distant device, giving a direct measurement of the hot spot without placing the sensor in the thermal path. This part is suited for thermal management in servers, telecom line cards, industrial controllers, and power supplies where a single over-temperature alert is needed to trigger a fan, throttle a processor, or shut down a rail.
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