HEAT SINK TO-218/220/247 20.2°C/W; Packages Cooled:TO-218 TO-220 TO-247 TO-248; Thermal Resistance:20.2°C/W; External Height - Metric:27mm; External Width - Metric:20mm; External Length - Metric:9mm; External Diameter - Metric:-; Heat Sink Material:Copper; External Height - Imperial:1.06"; External Width - Imperial:0.79"; External Length - Imperial:0.35"; External Diameter - Imperial:-; Product Range:-; SVHC:No SVHC (12-Jan-2017); Surface Finish:Plain