RXEF040 Hold current, Radial Leaded PCB Mount. TE PolySwitc RXE represents series of low hold current (down to 50mA) and high voltage rating (up to 72V) devices. Typically used in printers, satellite video receivers, industrial controls, transformers, computer motherboards, modems, USB hubs, ports and peripherals, game machines, phones, fax machines, analog and digital line cards applications.