QT8B_2409S3UP – GAPTEC

The QT8B_2409S3UP is a compact, isolated DC-DC converter module designed for point-of-load applications requiring galvanic isolation. This unit provides a tightly regulated 9V DC output at 28mA, delivering a nominal power of 0.25W. The input voltage range is specified as 21.6V to 26.4V, representing a ±10% tolerance around a nominal 24V input. The converter utilizes a fixed-frequency topology to achieve a typical efficiency of 78% under nominal operating conditions. The robust design incorporates thermal management techniques enabling operation across a wide temperature range of -40°C to +105°C, making it suitable for harsh environments. Isolation is achieved via internal transformer, providing robust protection against ground loops and voltage transients. The module is designed for PCB mounting and features integrated filtering to minimize EMI.