Recom ROE Series 1W DC-DC Converter. The ROE DC-DC converters are typically used in general purpose power isolation and voltage matching applications, and feature a full industrial operating temperature range of -40°C to +85°C without derating. 3 year warranty. Features and Benefits. Low Cost 1W Converter Industry Standard Pinout SIP4 Package 1kVDC Isolation Efficiency up to 80% Wide Operating Temperature Range -40°C to +85°C UL60950-1 Certified