The ATA03BB18-L is a 10-watt isolated DC-DC converter designed for diverse low-power applications including data communication, telecommunication, computer peripheral equipment, industrial automation, and mobile battery-powered systems. It features an input voltage range of 9–36 VDC with dual ±12V outputs at ±416 mA, achieving 87% efficiency with 1500 VDC I/O isolation and an ultra-wide 4:1 input range. The converter is housed in an ultra-compact mini dual-in-line package measuring 23.8 × 13.7 × 8.0 mm and operates reliably across -40°C to +80°C. Key specifications include ±2.0% voltage tolerance, 0.8% line regulation, 1.0% load regulation, 55 mV noise/ripple, and 370 kHz switching frequency, with hiccup-mode overload and short-circuit protection. The device meets UL/cUL/IEC/EN 62368-1 safety standards, includes CE marking, and is backed by a three-year warranty, making it ideal for applications requiring compact, isolated dual-polarity power supplies with high reliability.