Over 15 years experience of providing support of MEAN WELL Power Supplies
Description
Description
The DCW03A is a 3W Mean Well. power converter.
Key Features
- ✓ 1KVDC reinforced I/O isolation
- ✓ Protections: Short circuit / Overload
- ✓ 3 years warranty
Specifications
Specifications
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BrandMean Well
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Input Voltage9V~18V
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Dimming ControlNone
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Standards MetCE,EMC,FCC
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Operation ModeConstant Voltage
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Operating Temperature-40°C~71°C
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Length1.25 in
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Width0.8 in
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Height0.48 in
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Weight0.03 lb
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Payment & Security
Payment methods
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Frequently Asked Questions
What is the Mean Well DCW03A-05 designed for?
The DCW03A-05 is a 3W DC-DC converter intended for applications that need regulated dual output power from a DC source. This model accepts 9 to 18V DC input and provides a ±5V DC output, which makes it suitable for compact embedded and industrial electronics that require isolated onboard power conversion.
What are the key electrical specifications of the DCW03A-05?
This model is rated for 3W output power with a ±5V output and a listed rated current of 300mA. It has a typical efficiency of 82%, voltage set point accuracy of up to ±2%, and line and load regulation of up to ±0.5% max.
Does the DCW03A-05 provide input-to-output isolation?
Yes. The DCW03A-05 provides a minimum 1000V DC input-to-output isolation rating, with a minimum isolation resistance of 100MΩ at 500V DC. This can help where electrical isolation is required between the input source and the powered circuit.
What protection features are included in this DC-DC converter?
The DCW03A-05 includes short circuit protection with continuous auto-recovery and overload protection with auto-recovery. Its overload protection range is specified at 160% to 250%, helping protect the converter during abnormal load conditions.
Can the DCW03A-05 be used in demanding temperature environments?
This model is specified for operation from -40°C to +71°C, subject to the output derating curve. Its storage temperature range is -40°C to +105°C, which supports use in a wide range of industrial and enclosed equipment environments.
What makes the DCW03A-05 suitable for compact equipment designs?
The converter uses free air convection cooling and a five-sided shield metal case, which supports reliable operation without adding active cooling hardware. Its compact dimensions of 1.25 x 0.8 x 0.48 inches also make it easier to use where board or enclosure space is limited.




