Over 15 years experience of providing support of MEAN WELL Power Supplies
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Mean Well SCWN03B-12 DC-DC Converter - 3W 18~36V DC in 12V out 250mA
The SCWN03B 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 Voltage18V~36V
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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 SCWN03B-12 for 12V sensors or control modules in automation equipment?
Yes, if the 12V load stays within 0.25A and the total power stays within 3W. This model provides constant-voltage 12V output and is specified for an 18-36VAC input range.
Is the SCWN03B-12 suitable for compact 12V embedded or industrial interface boards?
It is suitable for compact 12V electronics that need regulated constant voltage at up to 0.25A. The housing size is 31.8 × 20.3 × 10.2 mm, which supports tight-space equipment designs.
Can this converter support a 12V alarm, signaling, or relay control circuit?
It can support 12V signaling or relay-related electronics when the demand remains within 0.25A and 3W. The input side must also match the specified 18-36VAC range.
What is the difference between the SCWN03B-12 and the other SCWN03B models?
The SCWN03B-12 is the 12V version and is rated at 0.25A and 3W. Other models in the series are SCWN03B-03 at 3.3V and 0.6A, SCWN03B-05 at 5V and 0.6A, and SCWN03B-15 at 15V and 0.2A; all are 3W converters.
Is the SCWN03B-12 intended for outdoor use or only controlled environments?
The temperature specification is -40°C to +90°C, which covers a wide operating range. An IP rating is not listed in the provided specs, so weather exposure or sealed outdoor use is not specified.
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