Rong-Electric MDA400PC4.2+3.2 Dual-Output LED Power Supply
$ 31.50
Rong-Electric MDA400PC4.2+3.2 common-cathode LED display power supply. The linked PDF lists 4.2 V/0–55 A and 3.2 V/0–35 A outputs with 343 W total output; see the specification notes for input-rating differences.
5000 in stock
Dual-output power for common-cathode LED displays
The Rong-Electric MDA400PC4.2+3.2 is a common-cathode LED display power supply with separate 4.2 V and 3.2 V DC outputs. The linked specification lists V1 at 0–55 A, V2 at 0–35 A and total output power of 343 W.
Technical parameters
The table follows the MDA400PC4.2+3.2 V1.0 PDF dated October 28, 2021. Check each output separately when matching the supply to a display module.
| Parameter | Specification |
|---|---|
| Model | MDA400PC4.2+3.2 |
| Type | Common-cathode dual-output LED display power supply |
| Output power (PDF) | 343 W |
| V1 rated output / current | 4.2 V DC / 0–55 A |
| V2 rated output / current | 3.2 V DC / 0–35 A |
| Rated AC input (PDF) | 100–240 V AC |
| Input voltage range (PDF) | 90–264 V AC; see the specification note below |
| Input frequency | 47–63 Hz |
| Efficiency (PDF) | ≥88% at 220 V AC, full load and room temperature |
| Power factor | ≥0.95 at full load |
| Operating temperature | −30 to +70°C; follow the temperature derating curve |
| Cooling / installation | Ventilation cooling; aluminum heat-dissipation plate required |
| Dimensions (L × W × H) | 180 × 68 × 26 mm |
| Weight | Approximately 485 g |
| Protection detailed in PDF | Output overcurrent and short circuit; recovery differs between outputs |
Specification differences to confirm
The earlier listing gives 180–264 V AC input and ≥87% efficiency. The PDF electrical tables give 100–240 V AC rated input, a 90–264 V AC range and ≥88% efficiency at 220 V AC and full load. A general note in the same PDF also refers to 180–264 V AC. Confirm the input rating of the supplied revision if the application depends on the wider range.
The original listing states output ranges of V1: 4.12–4.28 V DC and V2: 3.13–3.26 V DC, leakage current ≤1.0 mA at 242 V AC, and output overvoltage protection. The PDF leaves its output-range entry unspecified, lists leakage current <1.0 mA at 220 V AC, and details overcurrent and short-circuit protection. Those additional listing claims require confirmation for the supplied unit.
Mounting and temperature
Follow the aluminum-plate mounting requirements and derating curve in the PDF. The earlier listing specifies linear derating from +50 to +70°C; the upper operating temperature should not be treated as an unrestricted full-load rating.
Product image
Frequently asked questions
What are the two output voltages and current limits?
The PDF lists V1 at 4.2 V DC with 0–55 A output current and V2 at 3.2 V DC with 0–35 A output current. Check the required voltage and load separately for each rail.
Is this a 400 W power supply?
The model name contains 400, but the linked specification states an output power of 343 W. Use the documented rating and per-output current limits rather than inferring wattage from the model name.
Can it be used with 110 V AC input?
The PDF electrical tables list 100–240 V AC rated input and a 90–264 V AC range, while the earlier listing and a general PDF note refer to 180–264 V AC. Confirm the supplied revision and input rating before using it on 110 V AC.
Does this dual-output supply need a heat-dissipation plate?
Yes. The PDF installation section requires the bottom of the supply to contact an aluminum heat-dissipation plate. Follow its mounting drawing and thermal instructions, including the temperature derating curve.
Do both outputs recover in the same way after a short circuit?
No. The PDF describes recoverable turn-off for the 4.2 V output and latched shutdown for the 3.2 V output, with power removal required for recovery. Review the original protection table before integration.
Download specification
| Weight | 0.7 kg |
|---|
Be the first to review “Rong-Electric MDA400PC4.2+3.2 Dual-Output LED Power Supply”
You must be logged in to post a review.
Will I be charged with customs and taxes?
The prices displayed on our site are tax-free (in US Dollars), which means you may be required to pay import duties and taxes once you receive your order. Import taxes, duties, and related customs fees will be determined by your local customs office when your order arrives at its final destination.
Please note that these additional charges and taxes are your responsibility, and we do not take any responsibility for them. We are not liable for paying or reimbursing any customs duties, taxes, or related fees. For more details on these charges, please contact your local customs office.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations..
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound..
Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.)..
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item..
Related products
Reviews
There are no reviews yet.