Product Data Sheet Generated June 20, 2026
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E Cores (9478104002)

Part No. 9478104002
E Cores (9478104002)
Part Number
9478104002
Description
78 E CORE SET
Part Type
E Cores
Frequency Range
78 Material
Application Type
Inductive Components
Where Used
Closed Magnetic Circuit
Material Grade
78
Ordering Information

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.

Mechanical Specifications

Weight indicated is per pair or set.

Weight: 7.4 (g)

Chart Legend
•Dimensions (Top numbers are in millimeters, bottom numbers are in nominal inches.).

Dimmmmm tolnominal inchinch misc.
A20±0.600.787_
B9.9±0.200.39_
C5.65±0.250.222_
D7.2±0.200.283_
E14.1min0.556min
F5.7±0.200.224_

Electrical Specifications

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
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