Vigortronix vtx 214 020 20w switched mode power supply ac dc converter 5 48v vigortronix vtx 214 020 109 this vigortronix ac dc 20w single output switched mode power supply smps is designed for applications where space is limited thanks to the encapsulated design of the module which boasts over power over current and short circuit protection this pcb mounted smps is not only cost effective but also boasts a host of features such as 3600vrms primary to secondary isolation low standby