E Cores (9478104002)Part Number: 9478104002
78 E CORE SET
The E core geometry offers an economical design approach for inductive applications in a variety of power designs.
E cores can be supplied with the center post gapped to a mechanical dimension or an ALvalue.
Weight indicated is per pair or set.
Weight: 7.4 (g)
| Dim | mm | mm tol | nominal inch | inch misc. |
| A | 20 | ±0.60 | 0.787 | _ |
| B | 9.9 | ±0.20 | 0.39 | _ |
| C | 5.65 | ±0.25 | 0.222 | _ |
| D | 7.2 | ±0.20 | 0.283 | _ |
| E | 14.1 | min | 0.556 | min |
| F | 5.7 | ±0.20 | 0.224 | _ |
Chart Legend
Σl/A : Core Constant, le : Effective Path Length, Ae : Effective Cross-Sectional Area, Ve : Effective Core Volume
AL : Inductance Factor 
Explanation of Part Numbers: Digits 1 & 2 = product class and 3 & 4 = material grade.
| Electrical Properties | |
| AL(nH) | 1400 ±25% |
| Ae(cm2) | 0.309 |
| Σl/A(cm-1) | 15 |
| le(cm) | 4.63 |
| Ve(cm3) | 1.43 |
| Amin(cm2) | 0.3 |