China LED Power Transformer EDR Series - High Power, Low EMI, RoHS Compliant Factory Suppliers
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 AND | 20 | 30 | 36 | 65 | 72 |
Note: This design is based on 1. Flyback converter 2. PC40 series ferrite 3. Switching frequency: 132KHz
Frequently Asked Questions (FAQ)
What converter type is this EDR series transformer design based on?
This design is optimized for Flyback converters, which are highly efficient for low to medium power LED driver applications.
What switching frequency is used for these electronic specifications?
The specifications and dimensions are calculated based on a standard switching frequency of 132KHz.
What material is used for the core of these transformers?
The design utilizes high-performance PC40 series ferrite material to ensure low magnetic loss and high efficiency.
What is the maximum power range available in this series?
The maximum power output ranges from 20W (with the EDR-2009 core) up to 72W (with the EDR-4009 core).
What bobbin type and terminal configurations do these transformers feature?
All models feature a vertical bobbin type, with terminal configurations of either 5+3 or 5+5 depending on the specific core model.