The unique design (patent pending) of the W Series heat sinks combines a tin-plated, solderable, integral spring clip with an extruded aluminum heat sink body for an all-in-one solution to through-hole mounting of TO-220, TO-247, and TO-264 packages. These self-aligning heat sinks feature solderable feet and an integrated clip with 13.2 (lbf) of force on the center of the device to enhance thermal performance. Separate extrusion types exist for TO-220, TO-247, and TO-264.