The 66F065 is a subminiature bimetallic thermostat in the Airpax 6600 series, designed for accurate and reliable temperature sensing and switching in a single device. It features an 8-pin DIP package conforming to international standards, gold-plated contacts, and RoHS compliance per EU directive 2002/95/EC. The thermostat provides fast, positive response with excellent repeatability, offering switch capability up to 1 amp at 48 VDC or 120 VAC, and low-level switching down to 0.001 A at 5 VDC for 100,000 cycles. Operating temperature range is 40°C to 130°C with a standard tolerance of ±5°C, and the device achieves up to 30,000 life cycles at maximum standard amperage (120 VAC) or up to 100,000 life cycles with gold contact amperage. Ideal applications include computers and peripherals, aircraft, automotive, and test equipment, where the thermostat can control indicator lights, audible alarms, display messages, or system shutdown functions.