In 0.5” x 0.394” x 0.303” packages, the H100EI series 1W DC/DC converters suit space- and cost-critical applications. Fifteen models operate from 3.3, 5, 12 and 24 Vdc inputs and deliver single outputs of 3.3, 5, 9, 12, or 15 Vdc. Standard features include an input/output isolation of 3 kVdc, efficiency up to 79%, low-noise operation, a MTBF per MIL HDBK 217F greater than 3.5-million hours, and an operating temperature range from -40°C to +85°C with no derating or heat sinking necessary. Cooling is by free-air convection. MICROPOWER DIRECT, Stoughton, MA. (781) 344-8226.