E Cores (9498112002*)
98 E CORE SET
98 Material
Inductive Components
Closed Magnetic Circuit
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Part Number: 9498112002
98 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: 29.9 (g)
| Dim | mm | mm tol | nominal inch | inch misc. |
| A | 34.5 | ±1.00 | 1.358 | _ |
| B | 14.35 | ±0.35 | 0.565 | _ |
| C | 9.5 | ±0.40 | 0.374 | _ |
| D | 9.7 | ±0.30 | 0.382 | _ |
| E | 25.4 | min | 1 | min |
| F | 9.4 | ±0.30 | 0.37 | _ |
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) | 2900 ±25% |
| Ae(cm2) | 0.86 |
| Σl/A(cm-1) | 8.1 |
| le(cm) | 6.97 |
| Ve(cm3) | 5.99 |
| Amin(cm2) | 0.79 |
AL value is measured at 1 kHz, B < 10 gauss.
A low loss MnZn ferrite material for power applications up to 200 kHz.
New type of 98 material is an improved version of Fair-Rite’s 78 material. This material supplies lower power loss at 100°C at moderate flux densities for operation below 200 kHz.
Available in 98 material:
E&I Cores
Pot Cores
RM
PQ
ETD
EFD
EP
EER
Planar Shapes
98 Material Characteristics
| Property | Unit | Symbol | Value |
| Initial Permeability @ B < 10 gauss | µi | 2400 | |
| Flux Density @ Field Strength | Gauss Oersted |
B H |
5000 5 |
| Residual Flux Density | Gauss | Br | 2000 |
| Coercive Force | Oersted | Hc | 0.17 |
| Loss Factor @ Frequency | 10 -6 MHz |
Tan δ/ µi | 3 0.1 |
| Temperature Coefficient of Initial Permeability (20 -70°C) | %/°C | 1.5 | |
| Curie Temperature | °C | Tc | >215 |
| Resistivity | Ohm-cm | ρ | 200 |
**** Characteristic curves are measured on standard Toroids (18/10/6 mm) at 25°C and 10 kHz unless otherwise indicated. Impedance characteristics are measured on standard shield beads (3.5/1.3/6.0 mm) unless otherwise indicated.
Material Safety Data Sheet (MSDS)
Click here to download Complex Permeability vs. Frequency (CSV)
Ferrite Material Constants
Storage and Operating Temperature
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