The TU425 Series comes in five different standard models that cover the most popularly used output voltages. All models include an isolated 12 V at 1 A output, mostly used to power external fans, and an isolated 5 V at 2 A output. The 5 V output is “always on”, meaning it will be active whenever AC input is present, regardless of the state of the inhibit signal. There is no minimum load required to operate the supply and the total noise and ripple is under 1%. Output voltage adjustability is +/- 5% with the exception of the 56 V model which has a fixed output.