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Ferrite Cores & Accessories

TDK Ferrite Cores and Accessories feature polycrystal, sintered material construction with high electrical resistivity and distributed air gaps. These ferrites are ideal for transportation equipment and medical devices. Ferrite cores include E core, ETD core, PM core, U core, PS core, RM core, EFD core, and more. A wide variety of accessories is also available.

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Part #

Ferrite Cores & Accessories RM6/I-N49 '+30%-20% Sold as set

B65807J0000R049
TDK
1: $2.37
12,050In Stock

Mfr. Part No.
B65807J0000R049

Mouser Part No
871-B65807J0000R049

TDK

Ferrite Cores & Accessories RM6/I-N49 '+30%-20% Sold as set

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Datasheet

12,050In Stock

$2.37

$1.84

$1.66

$1.54

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Min.: 1
Mult.: 1

Ferrite Cores & Accessories

Ferrite Cores

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Blister Pack

Ferrite Cores & Accessories RM6 N87 3000 '+30%-20% Sold as set

B65807P0000R087
TDK
1: $3.41
2,491In Stock

Mfr. Part No.
B65807P0000R087

Mouser Part No
871-B65807P0000R087

TDK

Ferrite Cores & Accessories RM6 N87 3000 '+30%-20% Sold as set

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Datasheet

2,491In Stock

$3.41

$2.36

$2.02

$1.78

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Min.: 1
Mult.: 1

Ferrite Cores & Accessories

Ferrite Cores

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Blister Pack

Ferrite Cores & Accessories 50X30X20 N27 TOROID

B64290L0082X027
TDK
1: $14.83
210In Stock
120Expected 2026/11/30

Mfr. Part No.
B64290L0082X027

Mouser Part No
871-B64290L0082X027

TDK

Ferrite Cores & Accessories 50X30X20 N27 TOROID

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Datasheet

210In Stock

120Expected 2026/11/30

$14.83

$10.73

$8.62

$8.36

$7.57

Min.: 1
Mult.: 1

Ferrite Cores & Accessories

Toroids

Ungapped

Bulk

Ferrite Cores & Accessories 70X14.5

B65945A0000X022
TDK
1: $40.96
141In Stock
80Expected 2026/11/30

Mfr. Part No.
B65945A0000X022

Mouser Part No
871-B65945A0000X022

TDK

Ferrite Cores & Accessories 70X14.5

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Datasheet

141In Stock

80Expected 2026/11/30

$40.96

$29.60

$28.11

Min.: 1
Mult.: 1

Ferrite Cores & Accessories

Ferrite Cores

Ungapped

Bulk

Ferrite Cores & Accessories RM5 N48 125 +2% -2% Sold as set

B65805N0125G048
TDK
1: $3.79
1,490In Stock

Mfr. Part No.
B65805N0125G048

Mouser Part No
871-B65805N0125G048

TDK

Ferrite Cores & Accessories RM5 N48 125 +2% -2% Sold as set

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Datasheet

1,490In Stock

$3.79

$2.61

$2.20

$1.93

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Min.: 1
Mult.: 1

Ferrite Cores & Accessories

Ferrite Cores

Gapped

Blister Pack

Ferrite Cores & Accessories 41.8/26.2/12.5N97 TOROID

B64290L0022X097
TDK
1: $8.46
694In Stock

Mfr. Part No.
B64290L0022X097

Mouser Part No
871-B64290L0022X097

TDK

Ferrite Cores & Accessories 41.8/26.2/12.5N97 TOROID

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Datasheet

694In Stock

$8.46

$5.69

$4.78

$4.18

Min.: 1
Mult.: 1

Ferrite Cores & Accessories

Toroids

Ungapped

Bulk

Ferrite Cores & Accessories 58.3X40.8X17.6 T37 TOROID

B64290L0040X037
TDK
1: $20.15
247In Stock

Mfr. Part No.
B64290L0040X037

Mouser Part No
871-B64290L0040X037

TDK

Ferrite Cores & Accessories 58.3X40.8X17.6 T37 TOROID

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Datasheet

247In Stock

$20.15

$13.23

$11.65

Min.: 1
Mult.: 1

Ferrite Cores & Accessories

Toroids

Ungapped

Bulk

Ferrite Cores & Accessories ADJUSTMENT SCREW P 9 X 5

B65518C3000X001
TDK
1: $1.79
2,926In Stock

Mfr. Part No.
B65518C3000X001

Mouser Part No
871-B65518C3000X001

TDK

Ferrite Cores & Accessories ADJUSTMENT SCREW P 9 X 5

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Datasheet

2,926In Stock

$1.79

$1.26

$1.07

$0.94

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Min.: 1
Mult.: 1

Ferrite Cores & Accessories

Hardware & Accessories

Ungapped

Bulk

Ferrite Cores & Accessories RM6 PC200 100 +30% -20% Sold as set

B65807J0000R608
TDK
1: $3.95
1,291In Stock

Mfr. Part No.
B65807J0000R608

Mouser Part No
871-B65807J0000R608

TDK

Ferrite Cores & Accessories RM6 PC200 100 +30% -20% Sold as set

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Datasheet

1,291In Stock

$3.95

$2.70

$2.29

$2.01

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Min.: 1
Mult.: 1

Ferrite Cores & Accessories

Ferrite Cores

Ungapped

Blister Pack

Ferrite Cores & Accessories EP13-T38 Sold as set

B65843A0000Y038
TDK
1: $2.48
1,744In Stock

Mfr. Part No.
B65843A0000Y038

Mouser Part No
871-B65843A0000Y038

TDK

Ferrite Cores & Accessories EP13-T38 Sold as set

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Datasheet

1,744In Stock

$2.48

$1.71

$1.47

$1.29

View

Min.: 1
Mult.: 1

Ferrite Cores & Accessories

Ferrite Cores

Ungapped

Bulk

Ferrite Cores & Accessories EFD15x8x5 PC200 370 +30 -20%

B66413G0000X608
TDK
1: $1.66
3,330In Stock

Mfr. Part No.
B66413G0000X608

Mouser Part No
871-B66413G0000X608

TDK

Ferrite Cores & Accessories EFD15x8x5 PC200 370 +30 -20%

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Datasheet

3,330In Stock

$1.66

$1.15

$0.989

$0.892

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Min.: 1
Mult.: 1

Ferrite Cores & Accessories

Ferrite Cores

Gapped

Bulk

Ferrite Cores & Accessories EFD25/13/9 N97OL

B66421G0000X197
TDK
1: $1.01
4,549In Stock

Mfr. Part No.
B66421G0000X197

Mouser Part No
871-B66421GX197

TDK

Ferrite Cores & Accessories EFD25/13/9 N97OL

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Datasheet

4,549In Stock

$1.01

$0.785

$0.73

$0.682

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Min.: 1
Mult.: 1

Ferrite Cores & Accessories

Ferrite Cores

Ungapped

Bulk

Ferrite Cores & Accessories R9.53/4.75/3.17 N30 toroid

B64290L0062X830
TDK
1: $0.88
6,989In Stock

Mfr. Part No.
B64290L0062X830

Mouser Part No
871-B64290L62X830

TDK

Ferrite Cores & Accessories R9.53/4.75/3.17 N30 toroid

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Datasheet

6,989In Stock

$0.88

$0.612

$0.526

$0.468

View

Reel

$0.28

Min.: 1
Mult.: 1

: 2,000

Ferrite Cores & Accessories

Ungapped

Ammo Pack

Ferrite Cores & Accessories 6.3X3.8X2.5N30 TOROID

B64290P37X830
TDK
1: $0.50
9,477In Stock

Mfr. Part No.
B64290P37X830

Mouser Part No
871-B64290P37X830

TDK

Ferrite Cores & Accessories 6.3X3.8X2.5N30 TOROID

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Datasheet

9,477In Stock

$0.50

$0.348

$0.301

$0.267

View

Min.: 1
Mult.: 1

Ferrite Cores & Accessories

Toroids

Ungapped

Bulk

Ferrite Cores & Accessories ER14.5/3/7 N87 100 +3% -3% Sold as set

B65513J0100A087
TDK
1: $2.14
2,676In Stock

Mfr. Part No.
B65513J0100A087

Mouser Part No
871-B65513J100A87

TDK

Ferrite Cores & Accessories ER14.5/3/7 N87 100 +3% -3% Sold as set

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Datasheet

2,676In Stock

$2.14

$1.48

$1.27

$1.12

View

Min.: 1
Mult.: 1

Ferrite Cores & Accessories

Ferrite Cores

Gapped

Bulk

Ferrite Cores & Accessories ER11/5-N49 +30%-20% Sold as set

B65525J0000R049
TDK
1: $2.33
7,022In Stock

Mfr. Part No.
B65525J0000R049

Mouser Part No
871-B65525J0000R049

TDK

Ferrite Cores & Accessories ER11/5-N49 +30%-20% Sold as set

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Datasheet

7,022In Stock

$2.33

$1.60

$1.38

$1.22

View

Min.: 1
Mult.: 1

Ferrite Cores & Accessories

Ferrite Cores

Ungapped

Bulk

Ferrite Cores & Accessories P 18X11 N305 900 +30%-20% Sold as set

B65651W0000R030
TDK
1: $4.54
1,606In Stock

Mfr. Part No.
B65651W0000R030

Mouser Part No
871-B65651W0000R030

TDK

Ferrite Cores & Accessories P 18X11 N305 900 +30%-20% Sold as set

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Datasheet

1,606In Stock

$4.54

$3.14

$2.66

$2.33

View

Min.: 1
Mult.: 1

Ferrite Cores & Accessories

Ferrite Cores

Ungapped

Bulk

Ferrite Cores & Accessories P 18X11 T3812600 +40%-30% Sold as set

B65651W0000Y038
TDK
1: $5.07
1,236In Stock

Mfr. Part No.
B65651W0000Y038

Mouser Part No
871-B65651W0000Y038

TDK

Ferrite Cores & Accessories P 18X11 T3812600 +40%-30% Sold as set

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Datasheet

1,236In Stock

$5.07

$3.47

$2.92

$2.55

$2.30

Min.: 1
Mult.: 1

Ferrite Cores & Accessories

Ferrite Cores

Ungapped

Bulk

Ferrite Cores & Accessories RM6 N87 250 +3%-3% Sold as set

B65807J0250A087
TDK
1: $3.12
1,031In Stock

Mfr. Part No.
B65807J0250A087

Mouser Part No
871-B65807J0250A087

TDK

Ferrite Cores & Accessories RM6 N87 250 +3%-3% Sold as set

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Datasheet

1,031In Stock

$3.12

$2.15

$1.83

$1.60

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Min.: 1
Mult.: 1

Ferrite Cores & Accessories

Ferrite Cores

Gapped

Blister Pack

Ferrite Cores & Accessories RM8 N41 630 +5%-5% Sold as set

B65811J0630J041
TDK
1: $3.83
1,517In Stock

Mfr. Part No.
B65811J0630J041

Mouser Part No
871-B65811J0630J041

TDK

Ferrite Cores & Accessories RM8 N41 630 +5%-5% Sold as set

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Datasheet

1,517In Stock

$3.83

$2.62

$2.23

$1.95

$1.65

Min.: 1
Mult.: 1

Ferrite Cores & Accessories

Ferrite Cores

Gapped

Blister Pack

Ferrite Cores & Accessories RM12/I-N97 '+30%-20% Sold as set

B65815E0000R097
TDK
1: $7.28
551In Stock

Mfr. Part No.
B65815E0000R097

Mouser Part No
871-B65815E0000R097

TDK

Ferrite Cores & Accessories RM12/I-N97 '+30%-20% Sold as set

Learn More

Datasheet

551In Stock

$7.28

$4.92

$4.14

$3.61

$3.51

Min.: 1
Mult.: 1

Ferrite Cores & Accessories

Ferrite Cores

Ungapped

SMD/SMT

Bulk

Ferrite Cores & Accessories RM12 N87400 '+5%-5% Sold as set

B65815E0400J087
TDK
1: $6.21
1,120In Stock

Mfr. Part No.
B65815E0400J087

Mouser Part No
871-B65815E0400J087

TDK

Ferrite Cores & Accessories RM12 N87400 '+5%-5% Sold as set

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Datasheet

1,120In Stock

$6.21

$4.21

$3.55

$3.09

$2.91

Min.: 1
Mult.: 1

Ferrite Cores & Accessories

Ferrite Cores

Gapped

SMD/SMT

Bulk

Ferrite Cores & Accessories ELP38/8/25 N49OL

B66289G0000X149
TDK
1: $6.80
449In Stock

Mfr. Part No.
B66289G0000X149

Mouser Part No
871-B66289G0000X149

TDK

Ferrite Cores & Accessories ELP38/8/25 N49OL

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Datasheet

449In Stock

$6.80

$4.61

$3.93

$3.51

View

Min.: 1
Mult.: 1

Ferrite Cores & Accessories

Ferrite Cores

Ungapped

Bulk

Ferrite Cores & Accessories I43/4/28 N87 8500 +25% -25%

B66461K0000X187
TDK
1: $5.47
1,572In Stock

Mfr. Part No.
B66461K0000X187

Mouser Part No
871-B66461KX187

TDK

Ferrite Cores & Accessories I43/4/28 N87 8500 +25% -25%

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Datasheet

1,572In Stock

$5.47

$4.11

$3.28

$3.01

View

Min.: 1
Mult.: 1

Ferrite Cores & Accessories

Ferrite Cores

Ungapped

Bulk

Ferrite Cores & Accessories R34/20.5/12.5 K 1 toroid

B64290A0048X001
TDK
1: $12.89
216In Stock

Mfr. Part No.
B64290A0048X001

Mouser Part No
871-B64290A48X1

TDK

Ferrite Cores & Accessories R34/20.5/12.5 K 1 toroid

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216In Stock

$12.89

$8.97

$7.33

$6.93

View

Min.: 1
Mult.: 1

Ferrite Cores & Accessories

Ungapped

Bulk

Ferrite Cores & Accessories

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