4.2V supply for LED display modules
The Rong-Electric TVB200SH4.2H supplies a nominal 4.2V DC at 40A for LED displays. Its specified AC input is 190–264Vac, so supply voltage is an essential check when selecting this model.
Technical specifications
| Parameter | Specification |
|---|---|
| Nominal output | 4.2V / 40A |
| Output voltage range | 4.11–4.28Vdc |
| Input voltage | 190–264Vac |
| Dimensions (L × W × H) | 150 × 50 × 19mm |
| Weight | ≤214g |
| Efficiency | ≥87% |
| Leakage current | ≤1.0mA at 242Vac input |
| Operating temperature | −30 to +70°C; linear derating from +50 to +70°C |
| Cooling | Ventilation cooling |
| Protection | Output over-current and short-circuit protection |
Selection and installation checks
Match the LED module voltage and load to the supply’s output limits. Check mounting clearance and terminal arrangement before replacing an existing unit. The −30 to +70°C operating range includes a derating region above +50°C; consult the original specification when planning operation at elevated temperature.
Product image and datasheet
Download Specification:
Rong-Electric TVB200SH4.2H LED Display Power Supply Specification
Frequently asked questions
Can the TVB200SH4.2H run from 110V AC?
No. Its specified input range is 190–264Vac, which does not include 110V AC.
What is the rated DC output?
The nominal output is 4.2V at 40A. The listed output voltage range is 4.11–4.28Vdc.
How large is the power supply?
Its dimensions are 150 × 50 × 19mm (L × W × H), with a weight of no more than 214g.
Is full output available throughout the temperature range?
Linear derating applies from +50 to +70°C within the listed −30 to +70°C operating range. Check the PDF derating information before choosing the load.
Which protection functions are listed?
The product lists output over-current and short-circuit protection. The original specification is available through the download link above.
