The WA-T247-101E is a 23.4 x 16 x 32mm Heat Sink made of aluminium with black anodized finish. The W Series heat sinks combines a tin plated, solderable, integral spring for an all-in-one solution to through-hole mounting of TO-247 device and This self-aligning heat sink features solderable feet and an integrated clip with 13.2lbf of force on the centre of the device to enhance thermal performance.