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Mean Well MDS20A-12 DC-DC Converter - 20W - 9~18V in 12V out
Description
Description
Features
| DIP 2"x1" package with international standard pinout |
| 2:1 wide input range |
| Low patient leakage current <5µA |
| Wide operating temperature range -40~+90℃ |
| Medical safety approved(2xMOPP) according to IEC60601-1 |
| No minimum load required |
| Protections: Short circuit(Continuous)/Overload/Input under voltage |
| 4000VAC high I/O isolation(Reinforced isolation) |
| 3 years warranty |
General Specification
| Voltage accuracy | ±1% |
| Efficiency | 90% |
| Short circuit protection | Continuous, automatic recovery |
| Working temperature | -40°C to +90°C |
| Temp. Coefficient | 0.03% / ℃ (0 ~ 70℃) |
| Dimension (LxWxH) (mm) | 50.8*25.4*12mm (2*1*0.47 inch) |
| Packing | 30g; 18pcs/per tube, 432pcs/24 tube max./carton |
Specifications
Specifications
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BrandMean Well
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SeriesMDS Series
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Power Rating20 Watt
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Output Voltage12 Volt
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Rated Current1.67 Ampere
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Input Voltage9V~18V
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No of Output1
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Dimming ControlNone
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Standards MetCE,EAC,EMC
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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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Length2 in
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Width1 in
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Height0.47 in
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Weight0.07 lb
File Downloads
File Downloads
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Payment & Security
Payment methods
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Frequently Asked Questions
Can I use the MDS20A-12 to power 12V automation sensors or control accessories from a 12V-class DC source?
Yes, it provides a constant 12V output from a 9-18V input range. With a 20W rating and 1.67A output current, it is suited to lower-power 12V automation, sensing, and control loads that fit within that output envelope. It is intended for regulated 12V distribution, not variable-output use.
Is the MDS20A-12 suitable for 12V embedded or industrial communication hardware?
It can fit 12V embedded electronics and industrial interface devices that need a stable 12V rail and are sized within 20W. The converter operates in constant-voltage mode and accepts 9-18V input. Its compact 50.8 × 25.4 × 12.0 mm form factor also helps in dense equipment layouts.
Can this model be used where the input voltage varies across a wide 12V-system range?
Yes, the specified input range is 9-18V, which covers a broad span around nominal 12V-class systems. The output stays at 12V in constant-voltage mode. That makes it a practical choice for low-power 12V subcircuits that need regulation rather than direct bus connection.
How does the MDS20A-12 compare with the MDS20A-05, -15, and -24?
All four models are rated at 20W, but they differ by output voltage and rated current. The MDS20A-05 is 5V at 4A, the MDS20A-12 is 12V at 1.67A, the MDS20A-15 is 15V at 1.33A, and the MDS20A-24 is 24V at 833A. The -12 version is the 12V member of the family.
Is the MDS20A-12 designed for outdoor installations?
The unit has a wide operating temperature range of -40°C to +90°C, so temperature tolerance is broad. However, no IP rating is listed in the provided specs, so it should generally be used inside protected equipment, enclosed panels, or indoor housings rather than in exposed outdoor locations. Outdoor suitability depends on enclosure protection as well as temperature.
