Mean Well DCW12B-05 DC-DC Converter - 12W - 18~36V in ±5V out 1.2A

The DCW12B-05 is a 12W DC-DC converter with a 2:1 input range of 18 to 36V DC. It provides a ±5V output and has a rated current of 1.2A. Mean Well specifies voltage set point accuracy up to ±2.0% max.

This model is generally suited to OEM and industrial applications that need compact isolated DC-DC conversion from a nominal 24V-class input range. Its 18 to 36V input window, built-in EMI filter, and shielded metal case make it a practical fit for embedded power designs where stable low-power conversion is required. Final suitability depends on the load requirements and the system's voltage range.

Yes. Mean Well specifies 1500V DC input-to-output isolation for the DCW12B-05. The unit also has input-to-output isolation resistance of 100M Ohms at 500V DC under the stated test conditions.

It is rated for operation from -40°C to +71°C, subject to the output derating curve. Storage temperature is specified from -40°C to +105°C. Those ratings make it suitable for many industrial and enclosed equipment environments where wide temperature tolerance is required.

The DCW12B-05 includes short circuit and overload protection. Mean Well specifies overload protection at 110% to 180% with auto-recovery, and short circuit protection uses hiccup mode that recovers automatically after the fault is removed.

This converter is compact at 31.8 x 20.3 x 12.2 mm and weighs about 0.0185 kg. It also uses a five-sided shield metal case, which helps when a small footprint and mechanical robustness are important. That makes it easier to consider for dense power assemblies and embedded equipment layouts.

Mean Well lists EMC compliance to EN55022 Class B, EN61000-4-2, -3, -4, -5, -6, -8, and FCC Part 15 Class B. The converter also includes a built-in EMI filter and is 100% full-load burn-in tested. Mean Well backs this model with a 2-year warranty.