5V, 40A constant-voltage supply for LED displays
The YOUYI YY-D-200-5V-40A H1 supplies 5V DC at a rated 40A and 200W. The linked H-series specification identifies the model as YY-D-200-5 H1 and lists a 160 × 64 × 18mm enclosure with natural cooling.
The supply accepts 90–264V AC input. Its protection features include short-circuit and overload recovery, with overtemperature protection stated in the overview. Apply the input-voltage and temperature derating information in the PDF when selecting the operating load.
Technical specifications
| Parameter | Specification |
|---|---|
| Model | YOUYI YY-D-200-5V-40A H1; PDF model YY-D-200-5 H1 |
| Rated output | 5 V DC / 40 A |
| Rated output power | 200 W |
| Peak current | 42 A |
| No-load setting accuracy | ±0.05 V |
| Regulation | ±2% |
| Input voltage range | 90–264 V AC |
| Nominal input | 100–240 V AC |
| Input frequency | 47–63 Hz |
| Maximum AC input current | At most 3.0 A |
| Inrush current | At most 65 A at 220 V AC |
| Full-load efficiency | At least 90% |
| Leakage current | At most 0.25 mA at 220 V AC |
| Operating temperature | −25 to +60°C; prolonged −40°C operation requires a special request |
| Operating humidity | 15–90% RH, non-condensing |
| Cooling method | Natural cooling |
| Dimensions (L × W × H) | 160 × 64 × 18 mm |
| Weight | 430 g |
| Protection | Short-circuit recovery; overload shutdown at 105–125% of rated current with recovery after fault removal; overtemperature protection listed in the overview |
Terminal-rating clarification: The PDF gives conflicting current limits for an output terminal pair: 40A in Chinese and 15A in English. Confirm the terminal rating and wiring arrangement for the actual unit before installation; neither value is assumed here as the resolved limit.
Product images and specification download


Download specification:
YOUYI YY-D-200-5V-40A H1 Video Display Power Supply Specification
Frequently asked questions
What output does the YOUYI YY-D-200-5 H1 provide?
The linked specification states a rated output of 5V DC at 40A and 200W. It separately lists a peak current of 42A; this is not the continuous rated current.
Can this power supply accept 110V AC input?
Yes. The stated full input range is 90–264V AC, with a nominal 100–240V AC range and 47–63Hz frequency.
Is continuous operation at −40°C specified as standard?
No. The operating range is listed as −25 to +60°C. The PDF says the product can start at −40°C, but prolonged operation at that temperature requires a special request.
Can I assume every output terminal pair can carry 40A?
The PDF’s Chinese terminal note states 40A, while the English note states 15A. Because these conflict, confirm the terminal rating and wiring arrangement for the supplied unit before installation. The 40A rated output does not resolve that terminal-specific discrepancy.
Where can I check the current price?
The current price is shown in the purchase section of this page. Check the exact H1 model and order quantity before placing an order.







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