Aavid thermalloy km50 1 4 8 c w clip or bolt on heat sink for to 218 to 220 aavid thermalloy km50 1 an extruded clip or bolt on heat sink suitable for use with to 218 or to 220 type components aavid thermalloy km50 1 heat sink for to218 and to220 4 8 c w clip or bolt on