HEAT SINK TO-220/218 4.9°C/W; Packages Cooled:TO-218 TO-220; Thermal Resistance:4.9°C/W; External Height - Metric:33mm; External Width - Metric:46mm; External Length - Metric:50mm; External Diameter - Metric:-; Heat Sink Material:Aluminium; External Height - Imperial:1.299"; External Width - Imperial:1.811"; External Length - Imperial:1.969"; External Diameter - Imperial:-; Product Range:-; SVHC:No SVHC (12-Jan-2017); Surface Finish:Black Anodised