The RB-0509D is a low-cost, 1W unregulated DC/DC converter designed for isolating or converting DC power rails in general purpose applications. It operates with a nominal 5VDC input to provide a dual ±9VDC output at up to ±56mA, with a typical efficiency of 76-79%. Key features include standard 1kVDC/1s isolation, an operating temperature range of -40°C to +85°C, and power sharing on its dual outputs. Housed in a compact SIP7 package, this converter is a reliable solution for applications requiring isolated power without compromising on performance.