Power Inductive EER Cores

Fair-Rite Power Inductive EER Cores have been designed to make optimum use of a given volume of ferrite material for maximum throughput power. The structure, which includes a round center post, approaches a nearly uniform cross-sectional area throughout the core and provides a winding area that minimizes winding losses. EER Cores can be supplied with the center post gapped to mechanical specifications as well as an AL value. Fair-Rite Power Inductive EER Cores are available in a range of sizes from EER25.5/18 to EER49/54 and three materials with initial permeability ranging from 2300 to 3000.

Results: 25
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Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
Product
Type
Core
Core Size
Inductance
Tolerance
Core Material
Packaging
Fair-Rite Ferrite Cores & Accessories 95 EER Core EER35/42 Ind 3200 nH 25% TOL
165In Stock
330Expected 02/11/2026
$4.02
$2.76
$2.34
$2.06
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Min.: 1
Mult.: 1
95 Ferrite Cores Ungapped EER Core 35 x 21 x 11.3 3.2 uH 25 % 95 Bulk
Fair-Rite Ferrite Cores & Accessories 95 EER Core EER49/54 Ind 6500 nH 25% TOL
38In Stock
$6.16
$4.27
$3.42
$3.40
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Min.: 1
Mult.: 1
95 Ferrite Cores Ungapped EER Core 49 x 27 x 17.2 6.5 uH 25 % 95 Bulk
Fair-Rite Ferrite Cores & Accessories 78 ER Core Set Ind 1200 nH 25% TOL
4,702In Stock
$0.93
$0.646
$0.555
$0.493
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Min.: 1
Mult.: 1
95 Ferrite Cores Ungapped ER Core 10.8 x 2.45 x 5.9 1.2 uH 25 % 78 Bulk
Fair-Rite Ferrite Cores & Accessories 98 EER Core EER40/46 Ind 3600 nH 25% TOL
466In Stock
$3.87
$2.65
$2.25
$1.99
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Min.: 1
Mult.: 1
95 Ferrite Cores Ungapped EER Core 40 x 22.9 x 13.3 3.6 uH 25 % 98 Bulk
Fair-Rite Ferrite Cores & Accessories 98 ER Core Set Ind 900 nH 25% TOL
3,910In Stock
$0.60
$0.486
$0.447
$0.424
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Min.: 1
Mult.: 1
95 Ferrite Cores Ungapped ER Core 9.35 x 2.45 x 4.9 900 nH 25 % 98 Bulk
Fair-Rite Ferrite Cores & Accessories 78 EER Core EER25.5 Ind 1800 nH 25% TOL
749In Stock
$1.40
$0.968
$0.832
$0.778
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Min.: 1
Mult.: 1
95 Ferrite Cores Ungapped EER Core 25.5 x 9.3 x 7.5 1.8 uH 25 % 78 Bulk
Fair-Rite Ferrite Cores & Accessories 78 EER Core EER28/28 Ind 2800 nH 25% TOL
88In Stock
$3.49
$2.41
$2.05
$1.91
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Min.: 1
Mult.: 1
95 Ferrite Cores Ungapped EER Core 28.5 x 14 x 11.4 2.8 uH 25 % 78 Bulk
Fair-Rite Ferrite Cores & Accessories 78 EER Core EER35/42 Ind 2600 nH 25% TOL
187In Stock
$3.01
$2.08
$1.77
$1.56
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Min.: 1
Mult.: 1
95 Ferrite Cores Ungapped EER Core 35 x 21 x 11.3 2.6 uH 25 % 78 Bulk
Fair-Rite Ferrite Cores & Accessories 78 EER Core EER42/44 Ind 4000 nH 25% TOL
125In Stock
$4.62
$3.17
$2.69
$2.36
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Min.: 1
Mult.: 1
95 Ferrite Cores Ungapped EER Core 42 x 22 x 15.2 4 uH 25 % 78 Bulk
Fair-Rite Ferrite Cores & Accessories 95 ER Core Set Ind 950 nH 25% TOL
600In Stock
$1.04
$0.719
$0.619
$0.549
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Min.: 1
Mult.: 1
95 Ferrite Cores Ungapped ER Core 9.35 x 2.45 x 4.9 950 nH 25 % 95 Bulk
Fair-Rite Ferrite Cores & Accessories 95 EER Core EER25.5 Ind 2200 nH 25% TOL
1,110In Stock
$1.19
$0.825
$0.709
$0.63
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Min.: 1
Mult.: 1
95 Ferrite Cores EER Core 25.5 2.2 uH 25 % 95 Bulk
Fair-Rite Ferrite Cores & Accessories 95 EER Core EER28/28 Ind 3500 nH 25% TOL
542In Stock
$2.32
$1.67
$1.43
$1.26
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Min.: 1
Mult.: 1
95 Ferrite Cores Ungapped EER Core 28.5 x 14 x 11.4 3.5 uH 25 % 95 Bulk
Fair-Rite Ferrite Cores & Accessories 95 EER Core EER28/34 Ind 3350 nH 25% TOL
140In Stock
$3.08
$2.12
$1.85
$1.69
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Min.: 1
Mult.: 1
95 Ferrite Cores Ungapped EER Core 28.5 x 16.9 x 3.35 uH 25 % 95 Bulk
Fair-Rite Ferrite Cores & Accessories 95 EER Core EER40/46 Ind 4200 nH 25% TOL
58In Stock
$4.41
$3.02
$2.57
$2.25
$1.99
Min.: 1
Mult.: 1
95 Ferrite Cores Ungapped EER Core 40 x 22.9 x 13.3 4.2 uH 25 % 95 Bulk
Fair-Rite Ferrite Cores & Accessories 98 EER Core EER28/28 Ind 2800 nH 25% TOL
135In Stock
$2.08
$1.45
$1.29
Min.: 1
Mult.: 1
95 Ferrite Cores Ungapped EER Core 28.5 x 14 x 11.4 2.8 uH 25 % 98 Bulk
Fair-Rite Ferrite Cores & Accessories 98 EER Core EER35/42 Ind 2600 nH 25% TOL
321In Stock
$3.09
$2.14
$1.83
$1.61
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Min.: 1
Mult.: 1
95 Ferrite Cores Ungapped EER Core 35 x 21 x 11.3 2.8 uH 25 % 98 Bulk
Fair-Rite Ferrite Cores & Accessories 98 EER Core EER42/44 Ind 4100 nH 25% TOL
41In Stock
$4.72
$3.23
$2.73
$2.39
$2.06
Min.: 1
Mult.: 1
95 Ferrite Cores Ungapped EER Core 42 x 22 x 15.2 4.1 uH 25 % 98 Bulk
Fair-Rite Ferrite Cores & Accessories 98 EER Core EER49/54 Ind 5350 nH 25% TOL
109In Stock
$6.12
$4.20
$3.56
$3.12
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Min.: 1
Mult.: 1
95 Ferrite Cores Ungapped EER Core 49 x 27 x 17.2 5.35 uH 25 % 98 Bulk
Fair-Rite Ferrite Cores & Accessories 78 EER Core EER40/46 Ind 3400 nH 25% TOL
Non-Stocked Lead-Time 20 Weeks
$1.76
Min.: 600
Mult.: 100
95 Ferrite Cores Ungapped EER Core 40 x 22.9 x 13.3 3.4 uH 25 % 78 Bulk
Fair-Rite Ferrite Cores & Accessories 78 EER Core EER28/34 Ind 2600 nH 25% TOL
Non-Stocked
95 Ferrite Cores Ungapped EER Core 28.5 x 16.9 x 11.4 2.6 uH 25 % 78 Bulk
Fair-Rite Ferrite Cores & Accessories 78 EER Core EER49/54 Ind 4200 nH 25% TOL
Non-Stocked
95 Ferrite Cores Ungapped EER Core 49 x 27 x 17.2 4.2 uH 25 % 78 Bulk
Fair-Rite Ferrite Cores & Accessories 95 ER Core Set Ind 1600nH 25% TOL
Non-Stocked Lead-Time 20 Weeks
95 Ferrite Cores Ungapped ER Core 10.8 x 2.45 x 5.9 1.35 uH 25 % 95 Bulk
Fair-Rite Ferrite Cores & Accessories 95 EER Core EER42/44 Ind 5900 nH 25% TOL
Non-Stocked
95 Ferrite Cores EER Core 42 x 44 5.9 uH 25 % 95 Bulk
Fair-Rite Ferrite Cores & Accessories 98 EER Core EER25.5 Ind 1800 nH 25% TOL
Non-Stocked
95 Ferrite Cores Ungapped EER Core 25.5 x 9.3 x 7.5 1.8 uH 25 % 98 Bulk
Fair-Rite Ferrite Cores & Accessories 98 EER Core EER28/34 Ind 2710 nH 25% TOL
Non-Stocked
95 Ferrite Cores Ungapped EER Core 28.5 x 16.9 x 11.4 2.71 uH 25 % 98 Bulk