Fischer-Elektronik-14-Extruded-Heat-Sink-fischer-elektronik-SK104-25-4-STS-The-Fischer-Elektronik-14-Extruded-Heat-Sink-has-solderable-tinned-connection-pins-for-vertical-installation-&-is-ideal-for-PCB-mounting-TO-220-SOT-32-The-effective-heat-dissipation-make-it-ideal-for-a-wide-range-of-applications-SK104-25-4-STS-Heat-Sink-14C-W-for-TO-220