Tracopower heatsinks for thn and ten series dc to dc converters tracopower ten hs4 the tracopower ten hs4 is an optional heatsink for use with tracopower ten dc to dc converters the heatsink has been manufactured from aluminium with a black anodic treatment finish the heatsink is supplied with a thermal pad and 2 clamps and have a thermal impedance after assembly of up to 158kwtypical applications with use with dc to dc converters include battery operated equipment and distributed power