The 500W rated configurable TDK-Lambda XMS500A series of AC-DC power supplies is mechanically designed for effective cooling with a low 1m/s airflow, reducing acoustic noise. Additional features over the preceding XMS500 models include an ATX power good signal, full power at 85Vac input, extended 20ms hold-up time and compliance with EN60601-1-2 immunity.
The XMS500A is certified to both medical and industrial safety standards and meets EN55011-B and EN55032-B radiated and conducted emissions in protection Class I or Class II (no earth ground wire) applications. Target applications include home healthcare, hospital equipment, imaging and clinical diagnostic systems in addition to industrial, test and measurement and communications equipment.
The configurability of the XMS500A allows engineers to select from a wide range of options to optimise system design and lower cost without requiring the development of a modified standard. These options include 5V and 12V standby voltages, a fan supply voltage, case options (including a built-in fan), remote on/off, reduced leakage / touch current, AC fail, and single or dual input fusing.
Standard output voltages available are 12V, 24V, 36V and 48V. Additional voltages and options are also offered.
Operating from 85 to 264Vac and withstanding 300Vac surges for five seconds, the series can deliver full power in ambient temperatures up to 50°C with linear derating to 50% load at 70°C.