TDK-Lambda has extended the reach of its ZWS-BAF series of PCB-type AC-DC power supplies by adding two lower-power models. The 50 Watt ZWS50BAF and 75 Watt ZWS75BAF boast high efficiency even at low load conditions, with a wide operating temperature range, small size and up to 10 years’ electrolytic capacitor life.
As with all models in the ZWS-BAF series, the new models have active power factor correction and high input transient and surge protection to IEC61000-4-4,5 and operate from a universal input of 85 to 265 V a.c. or 120 to 370 V d.c. to meet a wide range of applications, including factory automation, test and measurement, and LED signage. Offered with a choice of output voltages from 3,3 V to 48 V, each model in the series can be adjusted by up to ±10% of its nominal voltage to accommodate non-standard system voltages.
Small in size and offering an efficiency of up to 88%, which is considered high for a PCB-type AC-DC power supply, all models in the ZWS-BAF series feature an operating temperature range of -10°C to +70°C, allowing 100% load operation in a 50°C environment. Standard features include over-current and over-voltage protection circuitry; an optional remote on/off is also available.
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