Over 15 years experience of providing support of MEAN WELL Power Supplies
Description
Description
Features
| DIP 24 package with international standard pinout |
| 4:1 wide input range |
| Low patient leakage current <5µA |
| Wide operating temperature range -40~+90℃ |
| Medical safety approved(2xMOPP) according to IEC60601-1 |
| Protections: Short circuit(Continuous)/Overload |
| 6KVDC or 4.2KVAC high I/O isolation(Reinforced isolation) |
| 3 years warranty |
General Specification
| Voltage accuracy | ±2% |
| Efficiency | 81% |
| Short circuit protection | Continuous, automatic recovery |
| Working temperature | -40°C to +90°C |
| EMC | Compliance to EN55011 class A, EN61000-4-2,3,4,5,6,8 |
| Temp. Coefficient | 0.05% / ℃ (0 ~ 71℃) |
| Dimension (LxWxH) (mm) | 31.8*20.3*12.2mm |
Specifications
Specifications
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BrandMean Well
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SeriesMDD Series
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Power Rating3 Watt
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Output Voltage5 Volt
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Rated Current0.3 Ampere
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Input Voltage18V~75V
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Standards MetCB,CCC,CE,EAC,ENEC,UL
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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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Length3.18 cm
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Width2.03 cm
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Height1.22 cm
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Weight0.02 kg
File Downloads
File Downloads
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Payment & Security
Payment methods
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Frequently Asked Questions
Can I use the MDD03G-05 in a medical monitor or patient-adjacent embedded system that needs 5V rails?
This model is a 3W constant-voltage DC/DC converter with 5V output at 0.3A, so it fits low-power 5V medical or embedded subcircuits that stay within that output limit. Its medical-grade positioning and CB, CCC, CE, EAC, ENEC, and UL certifications make it appropriate for regulated equipment designs where those approvals matter.
Is the MDD03G-05 suitable for industrial control electronics that need isolated low-power 5V conversion?
It can fit compact industrial control or automation electronics that need a 5V rail and draw no more than 0.3A from a 3W converter. The 18-75V input range also suits systems built around a wide nominal DC bus within that stated range.
Can this converter power 5V logic in embedded automation or data acquisition boards?
Yes, it is aligned with low-power 5V logic sections in embedded or data acquisition designs, provided the load stays within 5V and 0.3A. The small 31.8 × 20.3 × 12.2 mm package also helps where board or enclosure space is limited.
Which MDD03G model should I choose: 5V, 12V, or 15V?
Within this 3W series, the MDD03G-05 provides 5V at 0.3A, the MDD03G-12 provides 12V at 0.12A, and the MDD03G-15 provides 15V at 0.1A. All three share the same 18-75V input range, 31.8 × 20.3 × 12.2 mm dimensions, 0.017 kg weight, and -40°C to +90°C operating temperature range.
Is the MDD03G-05 suitable for outdoor or harsh-temperature installations?
The operating temperature range is -40°C to +90°C, so the temperature spec supports use across a wide range of enclosed equipment environments. No IP rating is listed in the provided specs, so outdoor exposure or washdown suitability cannot be confirmed from this data alone.
Other MDD03 Models
5 other models| Model | Power | Voltage | Current | IP Rating | |
|---|---|---|---|---|---|
| Mean Well MDD03G-15 Medical Grade DC/DC Converter 3W - 18-75V input, 15 and -15V output | 3W | 15V | 0.1A | Indoor | View |
| Mean Well MDD03G-12 Medical Grade DC/DC Converter 3W - 18-75V input, 12 and -12V output | 3W | 12V | 0.12A | Indoor | View |
| Mean Well MDD03F-15 Medical Grade DC/DC Converter 3W - 9-36V input, 15 and -15V output | 3W | 15V | 0.1A | Indoor | View |
| Mean Well MDD03F-12 Medical Grade DC/DC Converter 3W - 9-36V input, 12 and -12V output | 3W | 12V | 0.12A | Indoor | View |
| Mean Well MDD03F-05 Medical Grade DC/DC Converter 3W - 9-36V input, 5 and -5V output | 3W | 5V | 0.3A | Indoor | View |
