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EP Cores (6598130121*)

Part Number: 6598130121
98 EP CORE SET
98 Material
Inductive Components
Closed Magnetic Circuit
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Part Number: 6598130121

98 EP CORE SET

EP designs reduce the effect of residual air gap upon the effective permeability of the core, hence they minimize coil volume for a given inductance. EP cores also provide a high degree of isolation from adjacent components and are advantageously used in low power devices, matching and broadband transformers.

•EP cores can be supplied with the center post gapped to a mechanical dimension or an ALvalue.

Catalog Drawing
3D Model

Weight indicates is per pair or set.

Weight: 2.35 (g)

Dimmmmm tolnominal inchinch misc.
A12.5± 0.300.492_
B6.5± 0.300.256_
C8.8± 0.200.346_
D4.7± 0.200.185_
E10± 0.300.394_
F4.4± 0.200.173_
K2.50min0.098_

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)1650 ±25%
Ae(cm2)0.197
Σl/A(cm-1)11.8
le(cm)2.32
Ve(cm3)0.457
Amin(cm2)0.148

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

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
Printer Friendly Data Sheet - Download as pdf file

* Non-standard part. May have longer lead time, higher price, and higher minimum order quantity.