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Mean Well SCWN03C-12 DC-DC Converter - 3W 36~72V DC in 12V out
Description
Description
Features
| DIP24 package with industry-standard pinout |
| 2:1 wide input range |
| Operating temperature range -40~+90°C |
| No minimum load required |
| Comply to BS EN/EN55032 radiated Class A without additional components |
| High efficiency up to 87% |
| Protections: Short circuit(Continuous)/Overload/Input under voltage |
| 3KVDC I/O isolation |
| 3 years warranty |
General Specification
| Voltage set point accuracy | ±1.5% (max.) |
| Line regulation | ±0.5% (max.) |
| Load regulation | Single output models:±0.5%, Dual output models:±1% |
| Overload protection | 120%~250%, auto-recovery |
| Efficiency | 87% (typical) |
| Short circuit protection | Continuous, auto-recovery |
| I/O isolation voltage | I/P-O/P:3KVDC |
| I/O isolation resistance | I/P-O/P:100M Ohms / 500VDC / 25℃/ 70% RH |
| Isolation capacitance | 250pF (max.) |
| Working temperature | -40~+90°C |
| Storage temperature | -40°C to +105°C |
| EMC | Compliance to EN55032 class A, EN61000-4-2,3,4,5,6,8 |
| Temp. Coefficient | 0.03% / ℃ (0 ~ 85℃) |
| Dimension (LxWxH) (mm) | 31.8*20.3*10.2mm (1.25*0.8*0.4 inch) |
| Case material | Non-conductive black plastic(UL 94V-0 rated) |
Specifications
Specifications
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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 Voltage36V~72V
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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
File Downloads
File Downloads
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Payment & Security
Payment methods
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Frequently Asked Questions
Can I use the SCWN03C-12 to power a 12V control board from a 36-72V source?
Yes, this converter provides a constant 12V output and supports up to 0.25A, with 3W total output power. That makes it suitable for low-power 12V control electronics when the input source is within the listed 36-72V range.
Is the SCWN03C-12 a fit for small 12V sensors or monitoring electronics in industrial equipment?
It can be a fit for low-power 12V sensing or monitoring circuits that stay within 0.25A. Since the unit is limited to 3W, it is intended for lighter 12V electronics rather than higher-draw 12V devices.
Can this converter support a 12V relay or interface section in a compact automation assembly?
It can support low-power 12V interface sections as long as the current demand stays within the 0.25A output rating. Its 31.8 × 20.3 × 10.2 mm dimensions also make it practical where board or enclosure space is tight.
Would the SCWN03C-12 work for a small 12V subsystem inside a higher-voltage control cabinet?
Yes, that is a reasonable use case because it converts the specified 36-72V input range to a regulated 12V output. The important sizing limits are 3W maximum power and 0.25A maximum output current.
Is the SCWN03C-12 rated for outdoor exposure or only temperature extremes?
The published operating temperature range is -40°C to +90°C, so the temperature capability is broad. However, no IP rating is stated, so the specs do not confirm outdoor exposure resistance or sealed-enclosure protection.
What are the output differences across the SCWN03C family?
All four versions are 3W models with the same 36-72V input class. The outputs are 3.3V at 0.6A for SCWN03C-03, 5V at 0.6A for SCWN03C-05, 12V at 0.25A for SCWN03C-12, and 15V at 0.2A for SCWN03C-15.
