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Mean Well RSDW20F-03 DC-DC Converter - 20W - 9~36V in 3.3V out
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Description
Description
Features
| Compliance with EN50155 railway standard |
| DIP 2" x 1" package with standard pinout |
| 4:1 wide input range |
| Wide operating temperature range -40~+85°C |
| No minimum load required |
| Fully encapsulated |
| Protections: Short circuit(Continuous)/Overload/Over voltage/Input under voltage |
| 1.5KVDC, 3KVDC I/O isolation by models |
| Remote ON/OFF control |
| 3 years warranty |
General Specification
| Voltage Accuracy | ±1.5% |
| Overload Protection | 110~160% rated output power |
| Efficiency | 90% |
| Short circuit protection | Continuous, automatic recovery |
| Working temperature | -40°C to +85°C |
| EMC | Compliance to EN55032 class A, EN61000-4-2,3,4,5,6 |
| Temp. Coefficient | 0.03% / ℃ (0 ~ 71℃) |
| Dimension (LxWxH) (mm) | 50.8*25.4*10.2mm |
| Potting material | Non-conductive black plastic |
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 Voltage9V~36V
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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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Frequently Asked Questions
Can I use the RSDW20F-03 to power 3.3V embedded processors or logic boards from a 9-36V source?
Yes, this converter is designed for a constant 3.3V output and a 20W power rating, which suits many embedded processors, logic boards, and low-voltage control electronics within that 20W limit. Its 9-36VAC input range matches systems that operate inside that input window.
Is the RSDW20F-03 suitable for industrial automation electronics that run on 3.3V?
It can be used where the automation electronics need a regulated 3.3V rail and the load remains within 20W. The 5.5A output current gives this model higher low-voltage current capacity than the higher-voltage versions in the same series.
Can this converter be used in railway or mobile control systems?
The listed features include compliance with EN50155 and EN45545 railway standards, which makes it relevant for railway and mobile electronic applications. It also includes 4000VDC isolation and operates from -40°C to +85°C.
Is the RSDW20F-03 a fit for compact 3.3V control modules in tight enclosures?
Its dimensions are 50.8 × 25.4 × 10.2 mm, with a 1U low-profile and half-encapsulated design, so it fits compact electronic assemblies more easily than taller converter formats. The 0.035 kg weight also supports use in dense equipment layouts.
How does the RSDW20F-03 compare with the other RSDW20F models?
The RSDW20F-05 is 20W with 5V output at 4A, the RSDW20F-12 is 20W with 12V output at 1.67A, and the RSDW20F-15 is 20W with 15V output at 1.33A. The RSDW20F-03 is the 3.3V version at 20W with 5.5A output current.
Can the RSDW20F-03 be used outdoors or in wide-temperature environments?
The operating temperature range is -40°C to +85°C, so the temperature specification supports use in wide-temperature conditions. No IP rating is listed in the provided specs, so these specifications do not identify it as an outdoor or waterproof product.
