Rong-Electric TVB200SH4.2H 4.2V 40A LED Power Supply
$ 10.50
Rong-Electric TVB200SH4.2H LED display power supply, rated 4.2 V DC with a 0–40 A output range. The specification lists 32 A without auxiliary heat dissipation and a 190–264 V AC input range.
10000 in stock
4.2 V LED display power supply
The Rong-Electric TVB200SH4.2H supplies a rated 4.2 V DC output for LED displays. The specification lists a 0–40 A output current range and a separate 32 A rating without auxiliary heat dissipation, making thermal design an important part of selection.
Technical parameters
Specifications are from the TVB200SH4.2H V1.0 document dated July 19, 2023.
| Parameter | Specification |
|---|---|
| Model | TVB200SH4.2H |
| Rated output | 4.2 V DC |
| Output current range | 0–40 A |
| Derated output current | 32 A without auxiliary heat dissipation |
| Output voltage range | 4.11–4.28 V DC |
| Rated input | 200–240 V AC |
| Input voltage range | 190–264 V AC (feature list and electrical table) |
| Input frequency | 47–63 Hz |
| Efficiency | ≥87% at 220 V AC, full load and room temperature |
| Leakage current | ≤1.0 mA at 242 V AC (feature list) |
| Dimensions (L × W × H) | 150 × 50 × 19 mm |
| Weight | ≤214 g (feature list) |
| Operating temperature | −30 to +70°C; linear derating from +50 to +70°C |
| Cooling | Ventilation cooling; aluminum substrate required for heat dissipation |
| Protection | Output overcurrent and short circuit |
Input and cooling requirements
The feature list and electrical table specify 190–264 V AC input. A general explanatory note in the PDF also mentions 180–264 V AC; that inconsistency is not treated here as permission to operate below 190 V AC. Confirm any application outside the tabulated range before ordering.
For cabinet integration, check the 19 mm housing height, mounting holes and terminal positions. Use the specified aluminum heat-dissipation substrate and observe linear load derating above +50°C.
Product image
Frequently asked questions
Is the TVB200SH4.2H a 4.2 V or 5 V power supply?
It is rated at 4.2 V DC, with a specified output range of 4.11–4.28 V DC. It should not be selected as a 5 V supply.
Can I use this model with 110 V AC mains?
No. The electrical table specifies 200–240 V AC rated input and a 190–264 V AC input range. 110 V AC is outside those values.
Does the 40 A rating apply without extra heat dissipation?
The output table lists 0–40 A and separately specifies 32 A without auxiliary heat dissipation. Follow the aluminum-substrate requirement and temperature derating curve for the installation.
What are the dimensions and mounting requirements?
The housing measures 150 × 50 × 19 mm. Check the mounting-hole drawing and connector definitions in the PDF; matching the enclosure size alone does not confirm a replacement fit.
Where is the TVB200SH4.2H specification PDF?
Use the download link below for the original specification, including electrical ratings, thermal derating and mechanical drawings.
Download specification
Rong-Electric TVB200SH4.2H LED Display Power Supply Specification
| Weight | 0.7 kg |
|---|
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