... standard components, such as rectifier,MOSFET,capacitor,IC,transformer,inductance,fuse etc.4.Design digital set top box adapter electronics function ... ,OCP,OVP,Hi-pot,Resistance,burning-in/aging,temperature shock,drop test,vibration test etc.6.Power Switching Efficiency: >83%.7 ... .Load/no-load output tolerance:3% European market type power adapter CE GS approved