High Voltage Transformer (EFD Core)
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Southern Group produced EFD transformer adopts flat typeferrite core. It has features of low magnetic leakage, low loss, wide workingfrequency, strong anti-interference ability, etc. So it is widely used inswitching power supply, LED power supply, adapter, chargerand so on.
Parameters| Type | Pin Number | Dimensions (mm) | Fig | ||||
| A | B | C | D | E | |||
| EFD-12 | 4+4 | 6 | 17 | 20 | 3.0 | 13.5 | 2 |
| EFD-15 | 5+5 | 7.3 | 18.2 | 21.35 | 2.5 | 15 | 1 |
| EFD-15 | 5+5 | 7.5 | 19.3 | 22.6 | 3.0 | 16.7 | 2 |
| EFD-20 | 5+5 | 9.4 | 25.3 | 27.7 | 3.75 | 21.7 | 2 |
| EFD-20 | 6+6 | 9.7 | 24 | 26.8 | 3 | 20 | 1 |
| EFD-25 | 5+5 | 13.4 | 29.7 | 35.4 | 5 | 25 | 2 |
| EFD-25 | 5+5 | 12.6 | 29.7 | 31.5 | 5 | 25 | 1 |
| EFD-30 | 6+6 | 12.6 | 31.6 | 35.3 | 5 | 30 | 2 |
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