Tdk lambda dpp series din rail power supply tdk lambda dpp50 48 at 45 x 75 x 91mm tdk lambdas dpp50 48 din rail psu is exceptionally compact and offers a single 50w 48v dc 1a output from a universal from 85 to 264v ac without the need for pre selecting the ac input range in addition this unit will operate from a dc input ranging from 90 to 375v dcthe power supply features a low ripple and noise of 50mv or less and are protected against over current and over voltage conditions in additio