QS4E_4818S3U – GAPTEC

The QS4E_4818S3U is a compact, isolated DC-DC converter module designed for point-of-load applications requiring a stable 18V output. This module accepts a wide input voltage range of 43.2V to 52.8V (±10% tolerance around a nominal 48V input) and delivers a regulated 18V output at a current of 13.8mA, providing a maximum output power of 0.25W. Isolation is incorporated to enhance system safety and reduce ground loop issues. The converter achieves a typical efficiency of 76%, minimizing power losses. It’s built to operate reliably within a broad temperature range of -40°C to +85°C, making it suitable for harsh industrial environments. The module’s design prioritizes stable performance and robust operation across its specified input and temperature ranges. Internal circuitry provides protection against over-current and short-circuit conditions.