China EDR Series LED Power Transformer - High Efficiency, Low EMF, Safe Suppliers & Factory
📐 Shape and External Dimensions (mm)
⚡ Electronic Specifications
| Parameter | EDR-2009 | EDR-2610 | EDR-2809 | EDR-3909 | EDR-4009 |
|---|---|---|---|---|---|
| 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 |
ℹ️
Note: This design is based on: 1. Flyback converter; 2. PC40 series ferrite; 3. Switching frequency: 132KHz.
❓ Frequently Asked Questions
🔹 What type of converter are these transformers designed for?
These EDR series transformers are specifically designed for Flyback converter applications.
🔹 What core material is utilized in these specifications?
The electronic specifications are based on the use of high-quality PC40 series ferrite cores.
🔹 What is the standard switching frequency for these designs?
The design parameters and power ratings are calculated based on a switching frequency of 132KHz.
🔹 What is the maximum power output available in this series?
The power output ranges from 20W (EDR-2009) up to a maximum of 72W (EDR-4009).
🔹 What bobbin orientation do these transformers use?
All models listed in this specification table utilize a Vertical bobbin type for PCB mounting.
🔹 How many terminals do the EDR-2610 and EDR-4009 models have?
Both the EDR-2610 and EDR-4009 models are designed with a 5+5 terminal configuration.