China EDR Series LED Power Transformer - High Efficiency, Low EMI, Top Suppliers & Factory Compliance
📐 Shape and External Dimensions (mm)
⚡ Electronic Specifications
| Core shape | EDR-2009 | EDR-2610 | EDR-2809 | EDR-3909 | EDR-4009 |
| Bobbin type | Vertical | Vertical | Vertical | Vertical | Vertical |
| Number of terminals | 5+3 | 5+5 | 5+3 | 5+3 | 5+5 |
| Size mm/Max.A | 35.0 | 45.0 | 45.0 | 55.0 | 60.0 |
| Max.B | 16.0 | 13.5 | 16.0 | 16.0 | 17.5 |
| Max.D | 10.0 | 10.5 | 10.5 | 10.5 | 10.5 |
| ±0.3 G | 34.0 | 41.7 | 42.5 | 53.0 | 57.0 |
| ±0.3 F | 3.0 | 2.5 | 3.0 | 3.0 | 3.0 |
| Central leg area Aemm² | 56.37 | 81 | 82.83 | 110.8 | 120.7 |
| Maximum power (W) | 20 | 30 | 36 | 65 | 72 |
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Note: This design is based on: 1. Flyback converter; 2. PC40 series ferrite; 3. Switching frequency: 132KHz
Frequently Asked Questions (FAQ)
Q: What type of core shapes are available for these LED power transformers?
A: The series includes EDR-2009, EDR-2610, EDR-2809, EDR-3909, and EDR-4009 core shapes to suit different power requirements.
Q: What is the maximum power output supported by this series?
A: The maximum power ranges from 20W (EDR-2009) up to 72W (EDR-4009) depending on the specific model selected.
Q: What material is used for the transformer core?
A: These transformers are designed using high-quality PC40 series ferrite for optimal magnetic performance.
Q: What is the recommended switching frequency for these specifications?
A: These electronic specifications are optimized for a switching frequency of 132KHz.
Q: Are the bobbins configured vertically or horizontally?
A: All models in this specific technical table utilize a Vertical bobbin type.
Q: What circuit topology is this design based on?
A: The design and power ratings are based on a Flyback converter topology.