A powerful versatile & solderable heatsink designed for use with TO202 TO220 TO218 & TOP3 style device packages. As the heatsink is plain undrilled the device is attached using a retaining clip order code RN83. This heatsink is available in 3 different lengths. Order Length Temperature Rise Code mm CWatt RN80B 25.4 14RN81C 38.1 11RN82D 50.8 9