Stmicroelectronics L7818Cv-Dg. LINEAR VOLT REGU, FIXED, 18V/0.5A, TO220; Fixed Output Voltage Nom.:18V; Adjustable Output Voltage Min:-; Adjustable Output Voltage Max:-; Input Voltage Min:26V; Input Voltage Max:35V; Output Current:500mA; Output Type:Fixed; MSL:- EUR 1.06 1