HEATSINK TO-220 38.1MM NO FINISH; Packages Cooled:TO-220; Thermal Resistance:11.4°C/W; External Height - Metric:38.1mm; External Width - Metric:12.7mm; External Length - Metric:35mm; External Diameter - Metric:-; Heat Sink Material:Aluminium; External Height - Imperial:1.5"; External Width - Imperial:0.5"; External Length - Imperial:1.378"; External Diameter - Imperial:-; Product Range:-