The ATA00B18S-L is a 3-watt isolated DC-DC converter from Advanced Energy's Artesyn ATA series, designed for low-power applications including data communication, telecommunications, computer peripheral equipment, industrial automation, and mobile battery-powered systems. It features an input voltage range of 9-36 VDC with a 12 V output at 250 mA, achieving 80% efficiency at 24 V input. The converter provides 1500 VDC I/O isolation, operates across a wide temperature range of -40°C to +85°C, and includes remote ON/OFF control capability. The ultra-compact SMD package measures 23.8 × 13.7 × 8.0 mm and meets UL/cUL/IEC/EN 62368-1 safety standards with CE marking, making it suitable for demanding industrial and telecommunications applications requiring high reliability and compact form factor.