Tracopower tel 2 series 2w dc dc converters tracopower tel 2 1211 the tel 2 series from tracopower is a range of isolated 2w converters supplied in a low profile dil 16 package a wide input range and tightly regulated output voltage make these converters suitable for a wide range of applications tracopower tel 2 1211 2w dc dc converter 9 18v dc in 5v dc 400ma out