The SI1012CR-T1-GE3 is a single-pole, normally closed (NC) miniature reed switch from Vishay. It is a type of electric switch that uses a reed to open and close an electrical circuit, driven by a magnetic field. The switch has a maximum contact current rating of 10 mA, a voltage drop of 0.7 V, and a maximum switching power of 1.1 W. The SI1012CR-T1-GE3 has an operating temperature range of -40 to 85°C. Its lead form is gull-wing and its lead length is 1.5 mm. Its mounting type is through-hole, and its body size measures 5.1 cm (2.5 mm) long x 1.8 cm (14.5 mm) wide x 1.3 cm (7.1 mm) high.