EC1SA01NS is a 1-watt unregulated DC-DC converter from the EC1SAN series designed for isolated power conversion applications. It accepts a 5 VDC input and provides a regulated 5 VDC output with a maximum output current of 200 mA, achieving 79% efficiency at full load. The converter features 1500 VDC isolation voltage, low ripple and noise (75 mV peak-to-peak for SIP models), and operates across an ambient temperature range of -40°C to +85°C with a maximum case temperature of 100°C. Key performance characteristics include ±3.0% voltage accuracy, ±1.2% line regulation, and ±10% load regulation, with a switching frequency of 100 kHz typical. This device is ideal for industrial control systems, telecommunications equipment, and embedded systems requiring isolated power supplies with low cost and high reliability.