Rong-Electric MDK300SH5 5V 60A 300W LED Power Supply
$ 19.50
Rong-Electric MDK300SH5 5V 60A 300W LED display power supply with rated 200–240VAC input. Efficiency ≥88.5% at 220VAC/full load/room temperature. High-temperature full-load use requires a 300 × 300 × 3.0mm heat sink.
10000 in stock
300W power supply for 5V LED display modules
The Rong-Electric MDK300SH5 provides a rated +5V DC output with a 0–60A current range and 300W output power. Its rated AC input is 200–240V, making input-voltage matching an essential check before replacing another LED display supply.
The manufacturer documents input undervoltage, current limiting and short-circuit protection. Efficiency is specified as at least 88.5% at 220VAC, full load and room temperature.
MDK300SH5 specifications
Source: MDK300SH5 V1.0 specification dated 14 September 2018. The input operating range below follows the model’s electrical table.
| Parameter | Specification |
|---|---|
| Model | Rong-Electric MDK300SH5 |
| Rated DC output | +5V |
| Output voltage range | 4.9–5.1V |
| Output current | 0–60A |
| Output power | 300W |
| Rated AC input | 200–240VAC |
| AC input operating range | 190–264VAC in the input table |
| Input frequency | 47–63Hz |
| Efficiency | ≥88.5% at 220VAC, full load and room temperature |
| Maximum input current | ≤4.0A |
| Inrush current | ≤60A |
| Voltage / load regulation | ±1% / ±1% |
| Regulation accuracy | ±2% |
| Ripple and noise | ≤150mVp-p; full load, 20MHz bandwidth, 0.10µF ceramic and 10µF electrolytic capacitors in parallel at the output |
| Operating temperature | −40 to +60°C; high-temperature full-load use requires the specified heat sink |
| High-temperature cooling requirement | 300 × 300 × 3.0mm heat sink in close contact with the supply |
| Cooling in a sealed cabinet | The supply must be in close contact with the cabinet for heat dissipation, according to the PDF |
| Storage temperature | −40 to +80°C |
| Operating humidity | 10–90% RH, non-condensing |
| Protection functions | Input undervoltage, output current limiting and output short-circuit protection |
Cabinet installation and heat dissipation
For high-temperature full-load use, fit the specified 300 × 300 × 3.0mm heat sink closely against the supply. The document also requires close contact with the cabinet for heat dissipation when the supply is used in a sealed enclosure. Allow space for these cooling provisions when planning the enclosure.
Check the mounting drawing, terminal positions and module load before ordering a replacement. The heat-sink dimensions above are not the dimensions of the power supply housing.
Frequently asked questions
What are the MDK300SH5 output ratings?
The manufacturer lists +5V rated output, a 4.9–5.1V voltage range, 0–60A output current and 300W output power.
Can I connect the MDK300SH5 to 110V AC?
No 110VAC operation is specified. Its rated input is 200–240VAC, and the input table gives a 190–264VAC operating range.
What cooling is needed for high-temperature full-load operation?
The environmental table requires a 300 × 300 × 3.0mm heat sink in close contact with the power supply. Follow the manufacturer’s installation conditions when selecting a load for a hot cabinet.
Can the supply be installed in a sealed LED cabinet?
The PDF specifically states that, in a sealed cabinet, the supply must be in close contact with the cabinet for heat dissipation. This does not establish that the supply itself is waterproof.
What does the 88.5% efficiency figure mean?
The specification lists efficiency of at least 88.5% at 220VAC, full load and room temperature. Preserve these conditions when comparing it with another supply.
Product images and specification download
Download Specification
Rong-Electric MDK300SH5 High Efficiency Power Supply For LED Display Specification
| Weight | 0.8 kg |
|---|
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