5
"6111B",1.5,1.5,.625,"SX,SNX","Low profile heat sink","6111"
"6401B",4.75,1.5,1.25,"-","Extruded heat sink","6401"
"6403B",4.75,3,1.25,"-","Extruded heat sink","6401"
"6421B",3,4.75,2.625,"-","Extruded heat sink","6421"
"6423B",5.5,4.75,2.625,"-","Extruded heat sink","6421"