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E Core Ferrite Cores & Accessories

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Core = E Core

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Part #

Ferrite Cores & Accessories E80/38/20 N97 4700 +30% -20%

B66375G0000X197
TDK
1: S/21.68
716On Order

Mfr. Part #
B66375G0000X197

Mouser Part #
871-B66375G0000X197

TDK

Ferrite Cores & Accessories E80/38/20 N97 4700 +30% -20%

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Datasheet

716On Order

S/21.68

S/14.75

S/11.37

S/9.81

S/9.54

Min.: 1
Mult.: 1

E80/38/20

Ferrite Cores

Ungapped

E Core

80 x 38 x 20

4.7 uH

- 20 %, + 30 %

N97

SMD/SMT

Bulk

Ferrite Cores & Accessories E42/21/15 N27OL

B66325G0000X127
TDK
1: S/12.34
832Expected 8/10/2026

Mfr. Part #
B66325G0000X127

Mouser Part #
871-B66325GX127

TDK

Ferrite Cores & Accessories E42/21/15 N27OL

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Datasheet

832Expected 8/10/2026

S/12.34

S/8.49

S/7.24

S/6.34

View

Min.: 1
Mult.: 1

E10/5.5/5

Ferrite Cores

Ungapped

E Core

42 x 21 x 15

3.5 uH

- 20 %, + 30 %

N27

Bulk

Ferrite Cores & Accessories E42/21/20 N27 4750 +30% -20%

B66329G0000X127
TDK
1: S/15.06
360Expected 11/16/2026

Mfr. Part #
B66329G0000X127

Mouser Part #
871-B66329GX127

TDK

Ferrite Cores & Accessories E42/21/20 N27 4750 +30% -20%

Learn More

Datasheet

360Expected 11/16/2026

S/15.06

S/10.32

S/8.76

S/7.71

View

Min.: 1
Mult.: 1

E42/21/15

Ferrite Cores

Ungapped

E Core

42 x 21 x 20

4.75 nH

- 20 %, + 30 %

N27

Bulk

Ferrite Cores & Accessories E40/16/12 N87 4150 +30% -20%

B66381GX187
TDK
1: S/9.30
1,248Expected 12/3/2026

Mfr. Part #
B66381GX187

Mouser Part #
871-B66381GX187

TDK

Ferrite Cores & Accessories E40/16/12 N87 4150 +30% -20%

Learn More

Datasheet

1,248Expected 12/3/2026

S/9.30

S/6.42

S/5.49

S/4.83

View

Min.: 1
Mult.: 1

B66381G

Ferrite Cores

Ungapped

E Core

40 x 16 x 12

4.15 uH

- 20 %, + 30 %

N87

Bulk

Ferrite Cores & Accessories E25/13/7 N27LP=0.5MM

B66317G0500X127
TDK
1: S/4.05
3,600Expected 12/3/2026

Mfr. Part #
B66317G0500X127

Mouser Part #
871-B66317G0500X127

TDK

Ferrite Cores & Accessories E25/13/7 N27LP=0.5MM

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Datasheet

3,600Expected 12/3/2026

S/4.05

S/2.82

S/2.42

S/2.15

View

Min.: 1
Mult.: 1

E25/13/7

Ferrite Cores

Gapped

E Core

25 x 13 x 7 (EF 25)

500 nH

0.08 %

N27

Bulk

Ferrite Cores & Accessories E25/13/7 N87LP=1.0MM

B66317G1000X187
TDK
1: S/3.54
3,600Expected 8/10/2026

Mfr. Part #
B66317G1000X187

Mouser Part #
871-B66317G1000X187

TDK

Ferrite Cores & Accessories E25/13/7 N87LP=1.0MM

Learn More

Datasheet

3,600Expected 8/10/2026

S/3.54

S/2.48

S/2.13

S/1.90

View

Min.: 1
Mult.: 1

E25/13/7

Ferrite Cores

Gapped

E Core

25 x 13 x 7 (EF 25)

91 nH

N87

Bulk

Ferrite Cores & Accessories E25/13/7 N87 gap 0.5 mm

B66317G500X187
TDK
1: S/3.74
3,587Expected 9/14/2026

Mfr. Part #
B66317G500X187

Mouser Part #
871-B66317G500X187

TDK

Ferrite Cores & Accessories E25/13/7 N87 gap 0.5 mm

Learn More

Datasheet

3,587Expected 9/14/2026

S/3.74

S/2.60

S/2.23

S/1.99

View

Min.: 1
Mult.: 1

B66317G

Ferrite Cores

Gapped

E Core

25 x 13 x 7 (EF 25)

151 nH

N87

Bulk

Ferrite Cores & Accessories E55/28/21 N97 6700 +30% -20%

B66335G0000X197
TDK
1: S/24.25
216Expected 9/14/2026

Mfr. Part #
B66335G0000X197

Mouser Part #
871-B66335GX197

TDK

Ferrite Cores & Accessories E55/28/21 N97 6700 +30% -20%

Learn More

Datasheet

216Expected 9/14/2026

S/24.25

S/16.62

S/14.13

S/12.38

View

Min.: 1
Mult.: 1

E55/28/21

Ferrite Cores

Ungapped

E Core

55 x 28 x 21

6.7 uH

- 20 %, + 30 %

N97

Bulk

Ferrite Cores & Accessories E65/32/27 N87LP 1MM+/-0.05

B66387G1000X187
TDK
1: S/45.97
56Expected 10/21/2026

Mfr. Part #
B66387G1000X187

Mouser Part #
871-B66387G1000X187

TDK

Ferrite Cores & Accessories E65/32/27 N87LP 1MM+/-0.05

Learn More

Datasheet

56Expected 10/21/2026

S/45.97

S/33.44

S/26.78

S/25.42

S/21.91

Min.: 1
Mult.: 1

E65/32/27

Ferrite Cores

Gapped

E Core

65 x 32 x 27

716 nH

N87

Bulk

Ferrite Cores & Accessories E65/32/27-N87-DG100 FERRITE CORE SET

B66387Q0100K187
TDK
1: S/36.63
160Expected 11/16/2026

Mfr. Part #
B66387Q0100K187

Mouser Part #
871-B66387Q0100K187

TDK

Ferrite Cores & Accessories E65/32/27-N87-DG100 FERRITE CORE SET

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Datasheet

160Expected 11/16/2026

S/36.63

S/24.60

S/23.63

S/17.71

Min.: 1
Mult.: 1

E65/32/27

Ferrite Cores

Distributed Gap

E Core

E 65 x 32 x 27

100 nH

N87

Tray

Ferrite Cores & Accessories E65/32/27-N87-DG250 FERRITE CORE SET

B66387Q0250K187
TDK
1: S/37.37
150Expected 12/21/2026

Mfr. Part #
B66387Q0250K187

Mouser Part #
871-B66387Q0250K187

TDK

Ferrite Cores & Accessories E65/32/27-N87-DG250 FERRITE CORE SET

Learn More

Datasheet

150Expected 12/21/2026

S/37.37

S/25.11

S/18.41

S/17.71

Min.: 1
Mult.: 1

E65/32/27

Ferrite Cores

Distributed Gap

E Core

E 65 x 32 x 27

250 nH

N87

Tray

Ferrite Cores & Accessories E65/32/27-N87-DG400 FERRITE CORE

B66387Q0400K187
TDK
1: S/36.63
55Expected 8/27/2026

Mfr. Part #
B66387Q0400K187

Mouser Part #
871-B66387Q0400K187

TDK

Ferrite Cores & Accessories E65/32/27-N87-DG400 FERRITE CORE

Learn More

Datasheet

55Expected 8/27/2026

S/36.63

S/24.60

S/18.68

S/17.71

Min.: 1
Mult.: 1

E65/32/27

Ferrite Cores

Distributed Gap

E Core

E 65 x 32 x 27

400 nH

N87

Tray

Ferrite Cores & Accessories E100/60/28 N95 UNGAPPED

B66894G0000X195
TDK
1: S/104.40
20Expected 10/15/2026

Mfr. Part #
B66894G0000X195

Mouser Part #
871-B66894GX195

TDK

Ferrite Cores & Accessories E100/60/28 N95 UNGAPPED

Learn More

Datasheet

20Expected 10/15/2026

S/104.40

S/71.58

S/59.67

Min.: 1
Mult.: 1

E100/60/28

Ferrite Cores

Ungapped

E Core

100 x 60 x 28

8.5 uH

- 20 %, + 30 %

N95

Bulk

Ferrite Cores & Accessories E100/60/28DG N87 80 +10% -10%

B66894Y0080K187
TDK
1: S/98.67
48Expected 10/15/2026
New Product

Mfr. Part #
B66894Y0080K187

Mouser Part #
871-B66894Y0080K187

New Product

TDK

Ferrite Cores & Accessories E100/60/28DG N87 80 +10% -10%

Learn More

Datasheet

48Expected 10/15/2026

S/98.67

S/58.12

S/57.26

Min.: 1
Mult.: 1

E100/60/28

Ferrite Cores

E Core

80 nH

10 %

N87

Bulk

Ferrite Cores & Accessories E100/60/28DG N87 100 +10% -10%

B66894Y0100K187
TDK
1: S/98.67
24Expected 9/14/2026
New Product

Mfr. Part #
B66894Y0100K187

Mouser Part #
871-B66894Y0100K187

New Product

TDK

Ferrite Cores & Accessories E100/60/28DG N87 100 +10% -10%

Learn More

Datasheet

24Expected 9/14/2026

S/98.67

S/58.12

S/57.26

Min.: 1
Mult.: 1

E100/60/28

Ferrite Cores

E Core

100 nH

10 %

N87

Bulk

Ferrite Cores & Accessories E14/8/4 N41 1050 +30% -20%

B66219GX141
TDK
8,550: S/0.899
Non-Stocked Lead-Time 7 Weeks

Mfr. Part #
B66219GX141

Mouser Part #
871-B66219GX141

TDK

Ferrite Cores & Accessories E14/8/4 N41 1050 +30% -20%

Learn More

Datasheet

Non-Stocked Lead-Time 7 Weeks

S/0.899

Min.: 8,550
Mult.: 2,850

B66219G

Ferrite Cores

Ungapped

E Core

14 x 8 x 4

1 uH

- 20 %, + 30 %

N41

Bulk

Ferrite Cores & Accessories E14/8/4 N41 500 +20% -20%

B66219U0500M141
TDK
8,550: S/0.938
Non-Stocked Lead-Time 7 Weeks

Mfr. Part #
B66219U0500M141

Mouser Part #
871-B66219U500M141

TDK

Ferrite Cores & Accessories E14/8/4 N41 500 +20% -20%

Learn More

Non-Stocked Lead-Time 7 Weeks

S/0.938

Min.: 8,550
Mult.: 2,850

E14/8/4

Ferrite Cores

Gapped

E Core

14 x 8 x 4

500 nH

20 %

N41

Bulk

Ferrite Cores & Accessories E6.3 K 1 30 +30% -20%

B66300G0000X101
TDK
15,000: S/2.43
Non-Stocked Lead-Time 11 Weeks

Mfr. Part #
B66300G0000X101

Mouser Part #
871-B66300G0000X101

TDK

Ferrite Cores & Accessories E6.3 K 1 30 +30% -20%

Learn More

Datasheet

Non-Stocked Lead-Time 11 Weeks

S/2.43

Min.: 15,000
Mult.: 7,500

E6.3

Ferrite Cores

Ungapped

E Core

E 6.3

Bulk

Ferrite Cores & Accessories E6.3-N30 '+40%-30%

B66300G0000X130
TDK
15,000: S/1.12
Non-Stocked Lead-Time 11 Weeks

Mfr. Part #
B66300G0000X130

Mouser Part #
871-B66300G0000X130

TDK

Ferrite Cores & Accessories E6.3-N30 '+40%-30%

Learn More

Datasheet

Non-Stocked Lead-Time 11 Weeks

S/1.12

Min.: 15,000
Mult.: 7,500

E6.3

Ferrite Cores

Ungapped

E Core

E 6.3

700 nH

- 30 %, + 40 %

N30

Bulk

Ferrite Cores & Accessories E6.3-T38

B66300G0000X138
TDK
15,000: S/1.10
Non-Stocked Lead-Time 11 Weeks

Mfr. Part #
B66300G0000X138

Mouser Part #
871-B66300G0000X138

TDK

Ferrite Cores & Accessories E6.3-T38

Learn More

Datasheet

Non-Stocked Lead-Time 11 Weeks

S/1.10

Min.: 15,000
Mult.: 7,500

E6.3

Ferrite Cores

Ungapped

E Core

E 6.3

1.7 uH

- 30 %, + 40 %

T38

Bulk

Ferrite Cores & Accessories E8.8-N30 '+30%-20%

B66302G0000X130
TDK
10,000: S/1.84
Non-Stocked Lead-Time 9 Weeks

Mfr. Part #
B66302G0000X130

Mouser Part #
871-B66302G0000X130

TDK

Ferrite Cores & Accessories E8.8-N30 '+30%-20%

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

S/1.84

Min.: 10,000
Mult.: 5,000

E8.8/4/2

Ferrite Cores

Ungapped

E Core

E 8.8

1 uH

- 20 %, + 30 %

Core

N30

Bulk

Ferrite Cores & Accessories E8.8-T38

B66302G0000X138
TDK
10,000: S/1.78
Non-Stocked Lead-Time 9 Weeks

Mfr. Part #
B66302G0000X138

Mouser Part #
871-B66302G0000X138

TDK

Ferrite Cores & Accessories E8.8-T38

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

S/1.78

Min.: 10,000
Mult.: 5,000

E8.8/4/2

Ferrite Cores

Ungapped

E Core

E 8.8

2.1 uH

- 30 %, + 40 %

T38

Bulk

Ferrite Cores & Accessories E8.8-N49 '+30%-20%

B66302G0000X149
TDK
10,000: S/2.12
Non-Stocked Lead-Time 9 Weeks

Mfr. Part #
B66302G0000X149

Mouser Part #
871-B66302G0000X149

TDK

Ferrite Cores & Accessories E8.8-N49 '+30%-20%

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

S/2.12

Min.: 10,000
Mult.: 5,000

E8.8/4/2

Ferrite Cores

Ungapped

E Core

E 8.8

400 nH

- 20 %, + 30 %

N49

Bulk

Ferrite Cores & Accessories E13/7/4 N87 gap 0.3 +-0.02 mm

B66305G0300X187
TDK
6,900: S/0.763
Non-Stocked Lead-Time 8 Weeks

Mfr. Part #
B66305G0300X187

Mouser Part #
871-B66305G300X187

TDK

Ferrite Cores & Accessories E13/7/4 N87 gap 0.3 +-0.02 mm

Learn More

Datasheet

Non-Stocked Lead-Time 8 Weeks

S/0.763

Min.: 6,900
Mult.: 3,450

E13/7/4

Ferrite Cores

Gapped

E Core

13 x 7 x 4 (EF 12.6)

300 nH

N87

Bulk

Ferrite Cores & Accessories E13/7/4 N87 160 +7% -7%

B66305U0160X187
TDK
10,350: S/0.946
Non-Stocked Lead-Time 8 Weeks

Mfr. Part #
B66305U0160X187

Mouser Part #
871-B66305U160X187

TDK

Ferrite Cores & Accessories E13/7/4 N87 160 +7% -7%

Learn More

Non-Stocked Lead-Time 8 Weeks

S/0.946

Min.: 10,350
Mult.: 3,450

E13/7/4

Ferrite Cores

Gapped

E Core

13 x 7 x 4 (EF 12.6)

160 nH

7 %

N87

Bulk

E Core Ferrite Cores & Accessories

Customer Service Office

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B66206J
B66208A
B66208B
B66219G
B66232J
B66233G
B66243B
B66252B
B66305G
B66306C
B66307G
B66307H
B66310G
B66311A
B66311G
B66313G
B66314G
B66315G
B66317G

32 mm x 11 mm
55 mm x 21 mm
10 x 5.5 x 5
12.6 x 3.7 x 6.5
12.7 x 6.35 x 3.6
13 x 7 x 4 (EF 12.6)
14 x 3.5 x 5
14 x 5 x 3.5
14 x 8 x 4
16 x 6 x 5
16 x 8.05 x 4.5
16 x 8.2 x 4.7
16 x 8 x 5
16 x 8 x 5 (EF 16)
18 x 10 x 4
18 x 4 x 10
19 x 8 x 4.8
19 x 8 x 5
20 x 10 x 11
20 x 10 x 5

4.75 nH
5.2 nH
40 nH
50 nH
60 nH
69 nH
80 nH
86 nH
91 nH
100 nH
103 nH
122 nH
125 nH
130 nH
145 nH
146 nH
150 nH
151 nH
160 nH
170 nH