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| Power | 3W-550W | Input Voltage | AC 110V- AC 230V |
| Temperature Resist Grade | CLASS B, CLASS F | Safety Certificate | UL, TUV |
EFD EPC Switching Mode Transformers Features
Hi Efficiency, Low Power dissipation.
Using more slim mounting dimensions to get smaller outline dimensions .
The product had been certificated by UL Class B insulation system
Input Voltage: AC 110V- AC 230V; Temperature Resist Grade：CLASS B, CLASS F
Could be designed to double section or multiple section winding structure in some projects
Can re-design pin Numbers and pin pitch according to customer’s demand
The dimensions related to safety insulation system could be adjust by customer’s safety insulation demand
Safety Certificate: UL&TUV
| Size | FIG | A (Max) | B (Max) | C (Max) | D (Nom) | E (Nom) | F (Nom) | Pins | Ae (mm2) | Operating Power (Max) |
| EFD1010-1 | 6 | 11.00 | 12.50 | 5.50 | 12.42 | 2.54 | 0.3*0.6 | 4+4 | 7.20 | 3W |
| EPC1313-1 | 2 | 14.00 | 14.50 | 8.00 | 20.20 | 3.00 | 0.4*0.7 | 5+5 | 12.50 | 6W |
| EPC1313-2 | 1 | 14.00 | 14.50 | 8.00 | 10.50 | 2.50 | 0.60 | 5+5 | 12.50 | 6W |
| EPC1313-3 | 3 | 14.00 | 14.50 | 8.00 | 17.00 | 2.50 | 0.4*0.7 | 5+5 | 12.50 | 6W |
| EPC1313-4 | 4 | 14.00 | 14.50 | 8.00 | 21.00 | 2.50 | 0.4*0.7 | 5+5 | 12.50 | 6W |
| EFD1515-1 | 1 | 16.00 | 17.00 | 9.50 | 13.60 | 3.75 | 0.60 | 4+4 | 13.50 | 8W |
| EFD1515-2 | 2 | 16.00 | 16.00 | 9.00 | 21.80 | 2.50 | 0.4*0.7 | 5+5 | 13.50 | 8W |
| EFD1515-3 | 4 | 16.00 | 16.00 | 9.00 | 23.50 | 2.50 | 0.4*0.7 | 5+5 | 13.50 | 8W |
| EFD1515-4 | 3 | 16.00 | 16.00 | 9.00 | 17.20 | 2.50 | 0.4*0.7 | 5+5 | 13.50 | 8W |
| EFD1515-5 | 2 | 16.00 | 16.00 | 9.00 | 21.25 | 2.50 | 0.3*0.7 | 6+6 | 13.50 | 8W |
| EFD1515-6 | 6 | 16.00 | 22.40 | 9.00 | 19.20 | 3.75 | 0.4*1.0 | 4+4 | 13.50 | 8W |
| EPC1717-1 | 1 | 18.00 | 18.00 | 11.50 | 13.00 | 3.00 | 0.5*0.5 | 5+5 | 22.70 | 13W |
| EPC1717-2 | 1 | 18.00 | 18.00 | 11.50 | 15.00 | 2.5/3.7 | 0.60 | 4+6 | 22.70 | 13W |
| EPC1717-3 | 2 | 19.00 | 18.00 | 11.50 | 23.00 | 3.50 | 0.4*0.7 | 5+5 | 22.70 | 13W |
| EPC1920-1 | 1 | 20.00 | 21.00 | 13.50 | 16.20 | 2.5/3.7 | 0.60 | 5+6 | 22.80 | 15W |
| EPC1920-2 | 2 | 21.00 | 21.00 | 11.50 | 23.90 | 2.50 | 0.3*0.6 | 6+6 | 22.80 | 15W |
| EPC1920-3 | 2 | 21.00 | 21.00 | 11.50 | 25.00 | 3.0/3.5 | 0.4*0.8 | 4+6 | 22.80 | 15W |
| EFD2020-1 | 1 | 21.00 | 21.00 | 13.00 | 17.50 | 5.00 | 0.60 | 4+4 | 30.70 | 22W |
| EFD2020-2 | 1 | 21.00 | 21.00 | 13.00 | 17.50 | 3.70 | 0.60 | 5+5 | 30.70 | 22W |
| EFD2020-3 | 2 | 22.00 | 21.00 | 11.50 | 25.00 | 3.75 | 0.4*1.0 | 5+5 | 30.70 | 22W |
| EFD2020-4 | 2 | 21.00 | 22.00 | 12.00 | 28.65 | 3.00 | 0.4*0.7 | 6+6 | 30.70 | 22W |
| EFD2020-5 | 6 | 22.00 | 27.50 | 12.00 | 24.50 | 3.75 | 0.4*1.0 | 5+5 | 30.70 | 22W |
| EFD2020-6 | 7 | 22.00 | 27.50 | 12.00 | 20.60 | 3.75 | 0.4*1.0 | 5+5 | 30.70 | 22W |
| EFD2020-7 | 7 | 22.00 | 27.50 | 12.00 | 17.50 | 3.75 | 0.4*1.0 | 5+5 | 30.70 | 22W |
| EFD2525-1 | 1 | 26.00 | 26.50 | 16.00 | 22.50 | 5.00 | 0.80 | 5+5 | 58.60 | 50W |
| EFD2525-2 | 2 | 26.00 | 27.00 | 15.00 | 31.50 | 5.00 | 0.4*1.0 | 5+5 | 58.60 | 50W |
| EFD2525-3 | 2 | 26.00 | 27.00 | 15.00 | 31.50 | 4.00 | 0.4*1.0 | 6+6 | 58.60 | 50W |
| EFD2525-4 | 5 | 26.00 | 35.00 | 15.50 | 52.00 | 3.5/5.0 | 0.8*0.8 | 5+7 | 58.60 | 50W |
| EFD2525-5 | 5 | 26.00 | 26.50 | 15.00 | 34.00 | 5.00 | 0.6*0.6 | 5+5 | 58.60 | 50W |
| EPC2525-1 | 1 | 26.00 | 26.00 | 17.50 | 20.00 | 3.75/5.0 | 0.80 | 5+6 | 46.40 | 40W |
| EPC2525-2 | 2 | 26.00 | 26.00 | 11.50 | 28.70 | 3.5/5.0 | 0.4*1.0 | 5+6 | 46.40 | 40W |
| EPC2732-1 | 1 | 29.00 | 33.00 | 17.00 | 27.60 | 3.5/4.0 | 0.80 | 6+8 | 54.60 | 55W |
| EPC3035-1 | 1 | 31.00 | 36.00 | 18.00 | 30.00 | 5.00 | 0.90 | 6+6 | 61.00 | 70W |
| EFD3030-1 | 1 | 31.00 | 31.50 | 17.00 | 27.50 | 5.00 | 0.80 | 6+6 | 69.00 | 68W |
| EFD3030-2 | 3 | 31.00 | 31.50 | 13.50 | 40.00 | 5.00 | 0.64*0.64 | 6+6 | 69.00 | 68W |
| EFD3030-3 | 5 | 31.00 | 31.50 | 13.50 | 46.00 | 5.00 | 0.64*0.64 | 6+6 | 69.00 | 68W |
| EFD3540-3 | 5 | 31.00 | 31.50 | 13.50 | 46.00 | 5.00 | 0.64*0.64 | 6+6 | 58.28 | 68W |
| EPC3939-1 | 1 | 40.00 | 40.00 | 27.00 | 30.00 | 5.00 | 1.00 | 7+7 | 147.00 | 200W |
| EPC4045-1 | 7 | 45.00 | 51.50 | 20.00 | 42.00 | 5.00 | 0.64*0.64 | 8+8 | 128.90 | 160W |
| EPC4245-1 | 5 | 43.00 | 46.00 | 14.00 | 69.20 | 6.00 | 0.8*0.8 | 7+7 | 125.00 | 140W |
| EPC4645-1 | 7 | 47.00 | 47.00 | 32.00 | 35.00 | 5.00 | 1.00 | 9+9 | 216.00 | 350W |
| EPC5454-1 | 7 | 55.00 | 55.00 | 37.00 | 42.50 | 5.00 | 1.00 | 11+11 | 305.00 | 550W |
For more information, please visit https://www.winshinecorp.com/product/efd-switching-transformers/
No.1101, B1 zone, TIAN AN Hi-tech Industrial Park, Huangjing Rd., South Urdan Dist., Dongguan 523000,CN
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