HEAT SINK TO-220/218 2.9°C/W; Packages Cooled:TO-218 TO-220 TO-247; Thermal Resistance:2.9°C/W; External Height - Metric:45mm; External Width - Metric:100mm; External Length - Metric:100mm; External Diameter - Metric:-; Heat Sink Material:Aluminium; External Height - Imperial:1.77"; External Width - Imperial:3.94"; External Length - Imperial:3.94"; External Diameter - Imperial:-; Product Range:-; SVHC:No SVHC (17-Dec-2015); Surface Finish:Black Anodised