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Mean Well SCWN03A-12 DC-DC Converter - 3W 9~18V DC in 12V out 250mA
The SCWN03A is a 3W Mean Well power converter (input range: 4.5~9Vdc).
Key Features
- ✓ Input voltage range: 4.5~9Vdc
- ✓ 3KVDC reinforced I/O isolation
- ✓ Protections: Short circuit / Overload / Under voltage
- ✓ Safety approvals: EAC TP TC 004
- ✓ 3 years warranty
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BrandMean Well
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SeriesSCWN Series
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Power Rating3 Watt
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Output Voltage12 Volt
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Rated Current0.25 Ampere
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Input Voltage9V~18V
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No of Output1
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Dimming ControlNone
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Standards MetCE,EAC
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Operation ModeConstant Voltage
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Operating Temperature-40°C~90°C
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Warranty3 Year
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Length1.25 in
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Width0.8 in
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Height0.4 in
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Weight0.03 lb
::specification::
Frequently Asked Questions
Can I use the SCWN03A-12 for a 12V sensor or transmitter inside industrial control equipment?
Yes, this model provides a constant 12V output at up to 0.25A with a 3W power rating. It is intended for systems with a 9-18VAC input, so it fits low-power 12V control electronics that stay within those limits.
Is the SCWN03A-12 suitable for 12V embedded boards or small automation modules?
It can be used where the load needs a regulated 12V constant-voltage output and draws no more than 0.25A. The converter is rated 3W and uses a 9-18VAC input range, which suits compact embedded or automation circuits in that range.
Can this converter power a 12V relay or interface circuit in a machine cabinet?
It is appropriate for 12V relay or interface circuits if the total demand stays within 0.25A and 3W. The unit is compact at 31.8 × 20.3 × 10.2 mm, which helps where panel space is limited.
What is the difference between the SCWN03A-12 and other SCWN03A models?
The SCWN03A-12 is the 12V version rated at 0.25A and 3W. In the same series, the SCWN03A-03 is 3.3V at 0.6A, the SCWN03A-05 is 5V at 0.6A, and the SCWN03A-15 is 15V at 0.2A; all are 3W models.
Is the SCWN03A-12 suitable for outdoor or harsh-temperature environments?
The operating temperature range is -40°C to +90°C, so it is specified for very wide temperature conditions. No IP rating is listed in the provided specs, so outdoor exposure or washdown suitability is not specified here.
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