TDK Corp. has announced the introduction of the QM5 modular power supplies, rated at 700 to 1,200 W. These models are available with up to 12 outputs, have BF-ready isolation, and feature low acoustic noise. With medical and industrial safety certifications, the power supplies are suitable for use in medical, test-and-measurement, communications, and broadcast equipment.
The QM5 will operate in ambient temperatures of -20 to +70°C, with output power and output current linearly derating above 50°C to 50% at 70°C. With efficiencies of up to 91%, less internal heat is generated allowing the use of a low-speed cooling fan to reduce audible noise. A lower airflow speed also reduces the ingress of dirt and other contaminants, improving product reliability. All models in the QM series have a seven-year warranty as standard.
The power supply has 4,000-VAC (2 x MoPPs) input-to-output, 1,500-VAC (1 x MoPPs) input-to-ground, and 1,500-VAC (1 x MoPPs) output-to-ground isolation. All models are certified to IEC/EN/UL/CSA 60601-1, ANSI/AAMI ES 60601-1, and IEC/EN/UL/CSA 60950-1 and are designed to meet IEC/EN61010-1 with CE marking for the Low Voltage and RoHS2 Directives. Earth leakage current is less than 300 µA for the QM5, and it complies with the EN61000-6-3:2007 and EN60601-1-2:2015 (curve B conducted and radiated) emission standards. The units also meet the EN60601-1-2 and EN61000-6-2 immunity standards and are designed and manufactured under the control of ISO 9001 and ISO 13485 (including risk management).