To220 heat sink 10 5 deg c w trusemi bk t220 0065 01 to220 heatsink aluminium material black anodized body brass plated pin 10 5 c w thermal resistance bolt on 42 5mm long 25 4mm wide 25 4mm high a pre drilled black anodised heatsink suitable for to220 packages solderable pcb mounting tags improve mechanical stability trusemi bk t220 0065 01 t0220 10 5 deg c w bolt on heatsink