DigiKey offers Littelfuse technologies that the customer needs for AC charging stations. The block diagram here shows the functional areas of an AC charger and which Littelfuse components DigiKey offers for each area of the system. At the AC input are fuses and PPTCs for overcurrent protection; MOVs, GDTs, and TVS diodes for overvoltage protection. The auxiliary power supply is used to provide power to other functional blocks, and it contains many Littelfuse components such as a rectifier, MOSFET, optical isolator, TVS diode, and resettable PPTC.