Mean Well DCW12B-12 DC-DC Converter - 12W - 18~36V in ±12V out 500mA

The DCW12B-12 is a 12W DC-DC converter with a 2:1 input range of 18 to 36VDC. It provides dual ±12VDC outputs with a rated current of 500mA. This makes it suitable for designs that need regulated positive and negative 12V rails from a 24V nominal DC source range.

Yes. This model provides 1500VDC input-to-output isolation, with isolation resistance rated at 100M Ohms at 500VDC. That isolation can help where separation between the source side and load side is required within the product design.

The DCW12B-12 includes short circuit and overload protection. Overload protection is specified at 110% to 180% with auto-recovery, and short circuit protection uses hiccup mode that recovers automatically after the fault is removed. These features help protect the converter during abnormal load conditions.

This converter is rated for operation from -40°C to +71°C, subject to the output derating curve. Its storage temperature range is -40°C to +105°C. Cooling is by free air convection, so it is designed for compact embedded use without forced-air cooling hardware.

The DCW12B-12 has a compact metal package measuring 31.8 x 20.3 x 12.2mm and weighs about 0.0185kg. It also uses a five-sided shield metal case and includes a built-in EMI filter. Those characteristics make it a fit for space-constrained DC power conversion applications where shielding and size matter.

Voltage set point accuracy is rated at ±2.0% maximum, with line regulation of ±0.5% maximum and load regulation of ±0.5% maximum from 10% to 100% load. Efficiency is listed up to 84% depending on operating condition. For a 12W isolated module, these figures support stable output performance in regulated DC systems.