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EFD Type Core
1.Good electrical performance: It has high magnetic permeability, low loss, good frequency characteristics, and high saturation magnetic flux density.
2.Excellent physical performance: It features a compact structure and good thermal stability.
3.Good process performance: It can be achieved through reasonable processing and winding processes to meet the size and performance requirements of different equipment for the core.
2.Excellent physical performance: It features a compact structure and good thermal stability.
3.Good process performance: It can be achieved through reasonable processing and winding processes to meet the size and performance requirements of different equipment for the core.
Fig.1 Fig.2 Fig.3 Fig.4 Fig.5
| Specification | Figure | Dimension（mm） | Effective parameter | Inductor coefficient AL(nH/N2) | Weight (grams/pair) | |||||||||
| A | B | C | D1 | D2 | E | F | Ae(mm2) | Le(mm) | Ve(mm3) | BP44 | BP95 | |||
| EFD15.5/8/5 | 1 | 15.5±0.4 | 7.75±0.2 | 4.65±0.15 | 5.3±0.20 | 2.4±0.15 | 11.0min | 5.7±0.2 | 14.50 | 35.40 | 513.80 | 950±25% | 1150±25% | 3.50 |
| EFD16/8/5 | 3 | 16.35±0.3 | 7.6±0.2 | 4.8±0.2 | 6.0±0.15 | 2.5±0.15 | 12.4min | 5.4±0.2 | 16.90 | 36.10 | 608.70 | 1000±25% | 1200±25% | 3.80 |
| EFD17/8/6 | 3 | 17.00±0.3 | 8.15±0.15 | 5.60±0.2 | 6.0±0.20 | 3.3±0.20 | 12.5min | 5.55±0.2 | 22.70 | 37.40 | 849.10 | 1500±25% | 1750±25% | 5.45 |
| EFD18/9/6 | 3 | 17.8±0.3 | 8.60±0.2 | 6.10±0.2 | 7.45±0.15 | 3.4±0.10 | 12.8min | 6.25±0.15 | 27.50 | 39.70 | 1094.00 | 1600±25% | 1800±25% | 6.40 |
| EFD20.3/8/7 | 2 | 20.6±0.35 | 7.60±0.20 | 6.50±0.20 | 8.00±0.20 | 4.7±0.2 | 14.6min | 4.40±0.20 | 37.55 | 35.90 | 1348.05 | 2650±25% | 3300±25% | 7.86 |
| EFD20.6/10/7 | 2 | 20.6±0.40 | 10.0±0.25 | 6.65±0.20 | 8.80±0.20 | 3.6±0.2 | 15.7min | 7.7±0.25 | 29.60 | 48.20 | 1426.00 | 1360±25% | 1500±25% | 8.70 |
| EFD20.8/12/5 | 5 | 20.8±0.35 | 12.1±0.15 | 4.50±0.20 | 8.40±0.20 | 2.95±0.15 | 15.0±0.3 | 9.20±0.15 | 23.90 | 52.10 | 1245.00 | 970±25% | 1150±25% | 8.50 |
| EFD21/10/7 | 2 | 21.0±0.50 | 10.0±0.25 | 6.65±0.20 | 8.65±0.20 | 3.5±0.2 | 16.3min | 7.7±0.25 | 29.60 | 48.50 | 1437.60 | 1360±25% | 1500±25% | 8.70 |
| EFD25/13/9 | 2 | 25.0±0.65 | 12.5±0.25 | 9.1±0.2 | 11.3±0.20 | 5.1±0.2 | 19.0min | 9.4±0.25 | 53.00 | 58.60 | 3105.80 | 2150±25% | 2700±25% | 17.20 |
| EFD25.5/13/9A | 2 | 25.5±0.65 | 12.6±0.25 | 9.1±0.2 | 11.4±0.20 | 5.2±0.2 | 19.4±0.6 | 9.5±0.25 | 55.10 | 59.20 | 3264.00 | 2150±25% | 2700±25% | 18.60 |
| EFD31/15/9 | 2 | 31.4±0.60 | 15.2±0.20 | 9.1±0.2 | 14.6±0.25 | 4.7±0.2 | 23.8 min | 11.4±0.25 | 63.80 | 71.50 | 4562.50 | 2300±25% | 2900±25% | 26.60 |
| EFD35/22/6.5 | 3 | 35.7±0.70 | 21.70±0.20 | 6.50±0.2 | 16.5±0.25 | 3.9±0.2 | 25.5 min | 16.70±0.20 | 64.00 | 95.50 | 6112.00 | 1800±25% | 2300±25% | 41.60 |
| EFD36/24/10 | 3 | 36.2±0.5 | 23.6±0.3 | 10.0±0.3 | 14.0±0.30 | 5.0±0.2 | 25.8 min | 18.7±0.25 | 82.20 | 103.70 | 8530.00 | 2100±25% | 2600±25% | 52.60 |
| EFD38/18/7.6 | 3 | 37.7±0.65 | 17.6±0.25 | 7.60±0.25 | 18.65±0.25 | 3.4±0.2 | 29.4 min | 13.1±0.25 | 61.85 | 81.70 | 5053.15 | 2100±25% | 2500±25% | 34.60 |
| EFD38/19/8-1 | 3 | 38.50±0.65 | 19.40±0.20 | 8.00±0.25 | 18.00±0.25 | 5.0±0.2 | 27.20 min | 13.8±0.25 | 87.80 | 86.30 | 7577.20 | 2400±25% | 2800±25% | 42.80 |
| EFD40/22/8 | 3 | 40.0±0.8 | 22.2±0.3 | 8.0±0.3 | 19.9±0.30 | 4.0±0.2 | 29.5 min | 17.2±0.30 | 78.90 | 100.20 | 7905.00 | 2200±25% | 2500±25% | 49.10 |
| EFD43/17/7 | 3 | 42.6±0.6 | 16.95±0.3 | 7.2±0.3 | 23.0±0.30 | 4.1±0.2 | 28.4 min | 9.55±0.30 | 99.85 | 70.46 | 7036.90 | 3850±25% | 4500±25% | 42.70 |
| EFD45/25/8 | 3 | 45.4±0.6 | 24.90±0.2 | 7.65±0.20 | 23.8±0.20 | 4.0±0.2 | 33.2 min | 18.3±0.25 | 93.60 | 108.80 | 10181.0 | 2400±25% | 2800±25% | 63.70 |
| EFD50/25/8 | 3 | 50.5±0.7 | 25.90±0.3 | 8.8±0.20 | 23.5±0.30 | 5.0±0.2 | 37.6 min | 18.9±0.30 | 114.50 | 116.60 | 13350.7 | 3000±25% | 3600±25% | 83.60 |
| Note: | ||||||||||||
| The test conditions for AL value are: 1KHz, 0.3V, and 10Ts. | ||||||||||||
| The above are the standard specifications of our company, and they can be designed according to the special requirements of customers. | ||||||||||||
