ZXY EI35 PCB Mount Isolation Power Transformer 220V 50Hz Step-down 12V 150mA Safety Household Control Circuit ZXY EI35 PCB mount isolation low-frequency power transformer works at 50Hz mains frequency, with 220V AC input and 12V 150mA step-down output. Adopting high-quality EI silicon-steel core and reliable isolation winding structure, this encapsulated transformer comes with pin terminals for direct PCB soldering. It provides galvanic isolation between primary and secondary