The F0505S-2WR3 is a 2W isolated DC-DC converter module from MORNSUN's E_S-2WR3 & F_S-2WR3 series, specifically designed for on-board power systems requiring voltage isolation 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 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 SIP package measuring 19.65 x 7.05 x 10.16mm. This product is ideal for applications where the input voltage is relatively stable (±10% Vin), input-output isolation is required, and requirements for output voltage stability and ripple noise are not stringent. Typical applications include pure digital circuits, low-frequency analog circuits, relay drive circuits, and data exchange