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Mean Well RSDW20G-03 DC-DC Converter - 20W - 18~75V in 3.3V out
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Description
Description
The RSDW20G is a 20W Mean Well power converter (input range: 9~36Vdc).
Key Features
- ✓ Input voltage range: 9~36Vdc
- ✓ Protections: Short circuit / Overload / Over voltage / Under voltage
- ✓ Railway standards: EN45545-2 (fire), EN50155 / IEC60571, IEC61373 (shock & vibration)
- ✓ Remote ON/OFF control
- ✓ Safety approvals: EAC TP TC 004
- ✓ 3 years warranty
Specifications
Specifications
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BrandMean Well
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SeriesRSD Series
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Power Rating20 Watt
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Output Voltage3.3 Volt
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Rated Current5.5 Ampere
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Input Voltage18V~75V
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Standards MetCB,CE,EAC,EMC,RCM
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Operation ModeConstant Voltage
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Operating Temperature-40°C~85°C
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Warranty3 Year
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Length5.08 cm
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Width2.54 cm
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Height1.02 cm
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Weight0.04 kg
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Payment & Security
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Frequently Asked Questions
Can I use the RSDW20G-03 for 3.3V embedded processors or logic boards?
Yes, this unit delivers a constant 3.3V output with up to 5.5A available and a total 20W rating. It suits embedded processors, logic boards, and industrial electronics that require regulated 3.3V and stay within those limits.
Is the RSDW20G-03 suitable for 24V or higher-voltage control systems that need 3.3V rails?
Yes, its input range is 18-75VAC, so it is intended for a wide range of higher-voltage source conditions while providing a constant 3.3V output. It is appropriate for automation or embedded designs that need a low-voltage logic rail from that input range.
Can this model be used in railway electronics that run on 3.3V?
It is suitable for railway-related electronic applications because the listed features include compliance with EN50155 and EN45545 railway standards. The 3.3V, 5.5A output also makes it relevant for low-voltage digital control and embedded subsystems within the 20W limit.
Does the RSDW20G-03 make sense for compact industrial computing hardware?
It can, because the converter is only 50.8 × 25.4 × 10.2 mm, weighs 0.035 kg, and is described as 1U low profile and half encapsulated. Those specs help when integrating isolated 3.3V power into dense industrial or embedded assemblies.
What is the difference between the RSDW20G-03 and the other RSDW20G versions?
Each listed RSDW20G model is rated at 20W, but the outputs differ. The RSDW20G-03 is 3.3V at 5.5A, the RSDW20G-05 is 5V at 4A, the RSDW20G-12 is 12V at 1.67A, and the RSDW20G-15 is 15V at 1.33A.
Can the RSDW20G-03 handle cold or hot industrial environments?
The published operating temperature range is -40°C to +85°C, which supports use across very low and high ambient temperatures. No IP rating is listed in the provided specs, so outdoor exposure or washdown suitability is not established here.
