The 3L11-190 is a 1/2-inch bimetal disc thermostat with an open-on-rise operation and automatic reset. It features an aluminum disc cup, a loose stainless steel mounting bracket, and 1/4-inch quick-connect terminations. The thermostat operates within a temperature range of 85°C to 91°C. It is a snap-action type suitable for applications in consumer electronics and HVAC systems.