Fanless rail-mount power supplies offer 91% efficiency
The DRB series combines low cost and compact dimensions with efficiency of up to 91%. No load power consumption is between <0.3W and <0.5W depending on the model type. TDK says there is strong demand for compact, convection cooled DIN rail power supplies that deliver rated power without compromising long-term reliability; in a robust plastic case, the DRB supplies feature a narrow design, ranging from 18 mm to 45 mm, saving space on the DIN rail and believed to be the smallest products of their kind.
The supplies operate from a universal input of 85~264 Vac and have EN61000-3-2 compliance, enabling worldwide use; they can withstand voltage of 300 Vac surge for 5 seconds. The DRB series is available with four output power levels ranging from 15 – 100W and nominal output voltages of 5V, 12-15V, 24V or 48 Vdc. The supplies can operate at full load over a wide temperature range of -10 to +55°C (+70°C for 15W model). Typical ripple and noise is below 40mV; features include over current and over voltage protection, and a hold-up time of up to 20 ms at 100Vac input voltage, full load. The smallest model measures 18mm x 75mm x 90mm (DRB15-24-1); all DRB models will mount on either a TS35/7.5 or TS35/15 DIN rail and come with a range of approvals.
TDK-Lambda; www.uk.tdk-lambda.com/drb
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