Power Components

Lambda Adds Line of Medically Approved Power Supplies

Lambda has extended its HWS family of power supplies to include medically approved versions. The HWS/ME series single-output supplies are well-suited for powering non-surgical medical equipment that requires long, reliable field life, such as MRI scanners and blood analyzers.

The units are available with nominal output voltages ranging from 5 to 48V in 30, 50, 100 and 150W power levels, with a smaller range of outputs on the 300 and 600W packages (which feature current share and remote on/off signaling). To accommodate non-standard system voltages, the output voltage can be adjusted ±20% on 5 through 24V models and from -20% to +10% on 48V models.

The HWS/ME series accepts a broad range of input voltages – from 85 to 265Vac – and complies with EN61000-3-2 harmonic correction standards. The units can be operated across a wide temperature range of -10 to +70°C, derating above 50°C. Five compact mechanical configurations are offered, ranging in size from 1.04 x 3.23 x 3.74 inches (30W models) to 3.94 x 3.23 x 6.5 inches (600W models). All units are only 3.23 inches high, making them suitable for mounting in a 2U rack.

The power supplies meet Class B EMI standards (30 to 300W), radiated and conducted; are CE marked; and are safety approved to UL60601-1, CSA-C22.2 No6011-M90 and EN60601-1 (basic insulation), with a leakage current of less than 500µA. They also meet EN61000-4-X immunity standards. The HWS/ME series is available now, with prices starting at $38 each in 100-unit quantities.

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