PCN2-S DC-DC Converters CUI Inc PCN2-S DC-DC Converters provide up to 2W isolated output, single or dual unregulated output, and up to 86% efficiency in an industry-standard SIP package. These modules offer low ripple and noise, 1kVDC isolation voltage, and 5VDC, 12VDC, and 24VDC nominal input voltages. CUI Inc PCN2-S DC-DC Converters operate in a temperature range of -40°C to +100°C.