The SA50-120-5S-A-H from Microchip Technology is a Radiation-Hardened DC-to-DC Converter that converts a DC input voltage of 86-158 V to a DC output voltage of 27.73-28.27 V. This radiation-hardened converter delivers an output power of up to 50 W and has an efficiency of up to 85% at full load conditions. It has a ripple voltage range of 25-37.5 mVpp and an output current of 4 A. This isolated DC-DC converter is based on forward converter topology and features patented magnetic feedback. It has a line regulation of 10-150 mV and a load regulation of 50-500 mV. The converter has a MIL-STD-461-compliant internal EMI filter and consists of differential and common mode components to attenuate conductive EMI noise effectively. It has a radiation tolerance TID of greater than 100 krad (Si) and a SEE immunity of 82 MeV·cm2/mg. The converter has a low mass of 120 g and measures 3.055 x 2.055 x 0.5 inches. It is based on flight-proven technology with a high MTBF and is ideal for space and military applications.