The F0505D-2WR3 is a 2W isolated DC-DC converter module from MORNSUN's E_D-2WR3 & F_D-2WR3 series, specifically designed for on-board power systems requiring a voltage isolated from the input power supply . This model operates with an input voltage range of 4.5V to 5.5V and provides a regulated 5V output with up to 400mA output current . The module features continuous short-circuit protection, ultra-low no-load input current of 8mA, and 3000VDC isolation voltage with high power density and efficiency up to 86%. It operates reliably over a wide temperature range of -40°C to +105°C and features international standard pinout in a compact DIP package measuring 20.30 x 10.20 x 8.20mm . This product is ideal for applications in pure digital circuits, general low-frequency analog circuits, relay drive circuits, data exchange circuits, and similar applications .