HEATSINK 4.89 C/W TO-218/TO-220/TO-251; Packages Cooled:TO-218 TO-220 TO-251; Thermal Resistance:4.89 C/W; External Height - Metric:45mm; External Width - Metric:30mm; External Length - Metric:50mm; External Diameter - Metric:- ;RoHS Compliant: Yes