TDK Corporation's XMS500 series of AC/DC power supplies are rated at 500 W output power, with a Class I and Class II (no earth ground connection) construction. The series conforms to curve B conducted and radiated emissions, with a 6 dB margin and has a low leakage current of less than 150 µA. The high operating efficiency and mechanical design enable the XMS500 to operate at full load with airflow rates of just 1 m/s, reducing audible noise. Applications include home healthcare, hospital, imaging, and clinical diagnostic systems in addition to industrial, test and measurement, and communications equipment.

Designed as a configurable product, engineers can select from multiple standard options, to optimize both system performance and cost, without incurring development charges or minimum purchase quantities. The options include case styles (including an internal low-speed fan), a choice of standby voltage, a 12 V fixed or variable speed fan supply, remote on/off, AC fail, and single- or dual-input fuses. Nominal outputs are offered in 12 V, 24 V, 36 V, or 48 V with other voltages upon request. The product has a five-year warranty.

The XMS500 accepts a 90 V_AC to 264 V_AC input, withstanding 300 V_AC for five seconds and can operate in ambient temperatures of up to +70°C, derating linearly above 50°C by 2.5% per °C. The open frame version measures 102 mm x 180 mm x 37 mm and the U-channel 107 mm x 180 mm x 39.5 mm. The low profile allows installation in systems where space is limited.

All models are certified to IEC/EN/UL/CSA 60601-1 and IEC/EN/UL/CSA 60950-1 with CE marking for the low voltage, EMC, and RoHS2 directives. The series is compliant to EN 55011-B, EN 55032-B conducted and radiated emissions (for both Class I and II), EN 61000-3-2 harmonics, IEC 60601-1-2 Edition 4, and IEC 61000-4 immunity standards.

Input to output isolation is 4,000 V_AC (2 x MoPP), input to ground isolation 1,500 V_AC (1 x MoPP) and output to ground isolation is 1,500 V_AC (1 x MoPP) for suitability in B and BF rated equipment.