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Mean Well RDDW08G-05 DC-DC Converter - 8W - 18~75V in ±5V out
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Description
Description
Features
| Compliance with EN50155 railway standard |
| DIP 24 package with standard pinout |
| 4:1 wide input range |
| Wide operating temperature range -40~+85°C |
| No minimum load required |
| Full encapsulated |
| Protections: Short circuit(Continuous)/Overload/Over voltage/Input under voltage |
| 1.5KVDC I/O isolation |
| Remote ON/OFF control |
| 3 years warranty |
General Specification
| Voltage Accuracy | ±1.5% |
| Overload Protection | 120~180% rated output power |
| Efficiency | 86% |
| 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) | 31.8*20.3*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 Rating8 Watt
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Output Voltage5 Volt
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Rated Current0.8 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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Length3.18 cm
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Width2.03 cm
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Height1.02 cm
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Weight0.02 kg
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Frequently Asked Questions
Can I use the RDDW08G-05 to derive ±5V from a higher-voltage DC system for control electronics?
Yes, this version is intended for ±5V constant voltage output from an 18-75 input range, which suits higher-voltage source systems better than the F-input variants. Its 8W rating places it in the low-power class for control, interface, and embedded support circuits.
Is the RDDW08G-05 a fit for telecom, industrial bus, or battery-based equipment that runs above low-voltage input ranges?
It is better aligned with higher-voltage source environments because the input range is 18-75 rather than 3-36. That makes it more suitable when the upstream system voltage is outside the lower-input span but the load still needs a constant ±5V output.
Can the RDDW08G-05 be used in compact automation or embedded devices with limited space?
Its 31.8 × 20.3 × 10.2 mm dimensions and 0.0184 kg weight make it practical for compact equipment layouts. The small form factor is useful where higher-voltage input conversion is needed without giving up board or enclosure space.
Would the RDDW08G-05 work for isolated low-power support rails in industrial electronics?
It can work well for low-power support rails where a constant ±5V output is needed from an 18-75 input range. The 8W power level keeps it appropriate for electronics support functions rather than larger end loads.
How does the RDDW08G-05 compare with the other RDDW08G models?
The listed RDDW08G siblings share the same 8W power class, 18-75 input range, 31.8 × 20.3 × 10.2 mm dimensions, and 0.0184 kg weight. Output is the main difference: RDDW08G-05 is 5V and 800A, RDDW08G-12 is 12V and 333A, and RDDW08G-15 is 15V and 256A.
Can the RDDW08G-05 be used outdoors or in very hot and cold equipment environments?
The unit is specified for -40°C to +85°C operation, so the temperature range is broad for industrial electronics. No IP rating is included in the provided specs, so the product data does not define it as an outdoor-exposed converter.
