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E Cores (9478117002)
Part Number: 9478117002
78 E CORE SET
78 Material
Inductive Components
Closed Magnetic Circuit
Printer Friendly Data Sheet
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78 E CORE SET
78 Material
Inductive Components
Closed Magnetic Circuit
Printer Friendly Data Sheet
Check Stock
Part Number: 9478117002
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: 410 (g)
| Dim | mm | mm tol | nominal inch | inch misc. |
| A | 65.2 | ±1.30 | 2.567 | _ |
| B | 32.5 | ±0.30 | 1.28 | _ |
| C | 26.9 | ±0.35 | 1.059 | _ |
| D | 22.55 | ±0.35 | 0.888 | _ |
| E | 44.2 | min | 1.741 | min |
| F | 19.65 | ±0.35 | 0.774 | _ |
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) | 7600 ±25% |
| Ae(cm2) | 5.31 |
| Σl/A(cm-1) | 2.8 |
| le(cm) | 14.7 |
| Ve(cm3) | 78.1 |
| Amin(cm2) | 5.29 |
Ferrite Material Constants
Specific Heat
0.25 cal/g/°C
Thermal Conductivity
3.5 - 4.5 mW/cm-°C
Coefficient of Linear Expansion
8 - 10x10-6/°C
Tensile Strength
4.9 kgf/mm2
Compressive Strength
42 kgf/mm2
Young's Modulus
15x103 kgf/mm2
Hardness (Knoop)
650
Specific Gravity
≈4.7 g/cm3
The above quoted properties are typical for Fair-Rite MnZn and NiZn ferrites.
Storage and Operating Temperature
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