The 66F075 is a RoHS-compliant, subminiature bimetallic thermostat in an 8-pin DIP package designed for accurate temperature sensing and switching in a single device. It features gold-plated contacts, positive snap action operation, and can be configured for either close-on-rise or open-on-rise functionality with factory-preset, non-adjustable temperature settings. The device operates over a temperature range of 40°C to 130°C with a standard tolerance of ±5°C, achieving contact ratings up to 1.0 A at 120 VAC or 48 VDC, and low-level switching down to 0.001 A at 5 VDC. With mechanical life rated at 1,000,000 operations and up to 100,000 electrical cycles at maximum gold contact amperage, the thermostat is ideal for applications including computers, aircraft, automotive systems, and test equipment where reliable temperature-based control is required.