This is a 5g syringe of white heatsink compound to use you're connecting a component to a heatsink, it'll really helps to dissipate the potential heat from damaging the components like transistors.
Low Cost Clip-On Heat Sink for TO-220 package.
Low Cost Heatsink for TO-220 package.
Low Cost Clip-On for Heat Sink TO-220 package.
Low Cost Heat Sink for TO-3 package.
Low Cost Heat Sink for TO-220 package.
