QS4E_4809S3U – GAPTEC

The QS4E_4809S3U is a compact, galvanically isolated DC-DC converter module designed for point-of-load applications requiring a regulated 9V output. This module delivers a stable 27.7mA output current, providing 0.25W of power. It accepts a wide input voltage range of 43.2V to 52.8V, representing a ±10% tolerance around a nominal 48V input. The converter features a fixed-frequency topology and incorporates internal filtering to minimize output ripple and noise. Isolation is achieved via a transformer-based topology, providing robust electrical isolation between the input and output stages. The QS4E_4809S3U exhibits a typical efficiency of 76% across its operating input voltage range. It is designed for reliable operation within a wide temperature range of -40°C to +85°C, making it suitable for harsh industrial environments. The module is encapsulated for enhanced mechanical robustness and environmental protection.