PCN1-M DC-DC Converters CUI Inc PCN1-M DC-DC Converters feature single or dual unregulated output, up to 1W isolated output, and up to 81% efficiency in an SMT package. Additional features include low ripple and low noise, 5VDC and 12VDC nominal input voltages, and 1500VDC isolation voltage. CUI Inc PCN1-M DC-DC Converters operate in a temperature range of -40°C to +100°C.