HEAT SINK, TO-220, 21.6°C/W; Thermal Resistance: 21.6°C/W; Packages Cooled: TO-126; External Width - Metric: 22mm; External Height - Metric: 19mm; External Length - Metric: 19mm; External Diameter - Metric: -; Heat Sink Material: Aluminium; External Width - Imperial: 0.87"; External Height - Imperial: 0.748"; External Length - Imperial: 0.748"; External Diameter - Imperial: -; Product Range: -; SVHC: No SVHC (15-Jan-2019); Surface Finish: Black Anodised