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Ferrite Cores & Accessories

Ferrite Cores are in stock with same-day shipping at Mouser from industry leading manufacturers. Mouser is an authorized distributor for many ferrite core manufacturers including Fair-Rite, Proterial, TDK, & more.
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Please view our selection of ferrite cores below.

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Results: 3,245

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Part #

Ferrite Cores & Accessories E25/13/7 N27LP 0.25MM

B66317G0250X127
TDK
1: £0.841
618In Stock

Mfr. Part No.
B66317G0250X127

Mouser Part No
871-B66317G0250X127

TDK

Ferrite Cores & Accessories E25/13/7 N27LP 0.25MM

Learn More

Datasheet

618In Stock

£0.841

£0.589

£0.507

£0.45

View

Min.: 1
Mult.: 1

E25/13/7

Ferrite Cores

Gapped

E Core

25 x 13 x 7 (EF 25)

250 nH

N27

Bulk

Ferrite Cores & Accessories E25/13/7 N27 1750 +30% -20%

B66317GX127
TDK
1: £0.899
2,178In Stock

Mfr. Part No.
B66317GX127

Mouser Part No
871-B66317GX127

TDK

Ferrite Cores & Accessories E25/13/7 N27 1750 +30% -20%

Learn More

Datasheet

2,178In Stock

£0.899

£0.625

£0.537

£0.477

View

Min.: 1
Mult.: 1

B66317G

Ferrite Cores

Ungapped

E Core

25 x 13 x 7 (EF 25)

1.75 uH

- 20 %, + 30 %

N27

Bulk

Ferrite Cores & Accessories E30/15/7 N27LP=0.1MM

B66319G0100X127
TDK
1: £1.20
1,309In Stock

Mfr. Part No.
B66319G0100X127

Mouser Part No
871-B66319G0100X127

TDK

Ferrite Cores & Accessories E30/15/7 N27LP=0.1MM

Learn More

Datasheet

1,309In Stock

£1.20

£0.826

£0.715

£0.657

View

Min.: 1
Mult.: 1

E30/15/7

Ferrite Cores

Gapped

E Core

30 x 15 x 7

460 nH

N27

Bulk

Ferrite Cores & Accessories E30/15/7 N87460NH LP=0.1+-0.02

B66319G0100X187
TDK
1: £1.22
1,955In Stock

Mfr. Part No.
B66319G0100X187

Mouser Part No
871-B66319G0100X187

TDK

Ferrite Cores & Accessories E30/15/7 N87460NH LP=0.1+-0.02

Learn More

Datasheet

1,955In Stock

£1.22

£0.841

£0.729

£0.671

View

Min.: 1
Mult.: 1

E30/15/7

Ferrite Cores

Gapped

E Core

30 x 15 x 7

460 nH

N87

Bulk

Ferrite Cores & Accessories E30/15/7 N87 gap 0.5+-0.05 mm

B66319G500X187
TDK
1: £1.22
266In Stock

Mfr. Part No.
B66319G500X187

Mouser Part No
871-B66319G500X187

TDK

Ferrite Cores & Accessories E30/15/7 N87 gap 0.5+-0.05 mm

Learn More

Datasheet

266In Stock

£1.22

£0.841

£0.729

£0.671

View

Min.: 1
Mult.: 1

B66319G

Ferrite Cores

Gapped

E Core

30 x 15 x 7

500 nH

N87

Bulk

Ferrite Cores & Accessories E30/15/7 N27 1700 +30% -20%

B66319GX127
TDK
1: £1.24
1,896In Stock

Mfr. Part No.
B66319GX127

Mouser Part No
871-B66319GX127

TDK

Ferrite Cores & Accessories E30/15/7 N27 1700 +30% -20%

Learn More

Datasheet

1,896In Stock

£1.24

£0.856

£0.738

£0.678

View

Min.: 1
Mult.: 1

B66319G

Ferrite Cores

Ungapped

E Core

30 x 15 x 7

1.7 uH

- 20 %, + 30 %

N27

Bulk

Ferrite Cores & Accessories E42/21/20 N27LP 0.5MM

B66329G0500X127
TDK
1: £4.20
234In Stock

Mfr. Part No.
B66329G0500X127

Mouser Part No
871-B66329G0500X127

TDK

Ferrite Cores & Accessories E42/21/20 N27LP 0.5MM

Learn More

Datasheet

234In Stock

£4.20

£2.87

£2.44

£2.14

View

Min.: 1
Mult.: 1

E42/21/20

Ferrite Cores

Gapped

E Core

42 x 21 x 20

500 nH

N27

Bulk

Ferrite Cores & Accessories E42/21/20 N27LP 1.0MM

B66329G1000X127
TDK
1: £4.24
97In Stock

Mfr. Part No.
B66329G1000X127

Mouser Part No
871-B66329G1000X127

TDK

Ferrite Cores & Accessories E42/21/20 N27LP 1.0MM

Learn More

Datasheet

97In Stock

£4.24

£2.91

£2.47

£2.17

View

Min.: 1
Mult.: 1

E42/21/20

Ferrite Cores

Gapped

E Core

42 x 21 x 20

1 uH

N27

Bulk

Ferrite Cores & Accessories E42/21/20 N87LP 1.5MM

B66329G1500X187
TDK
1: £4.55
86In Stock

Mfr. Part No.
B66329G1500X187

Mouser Part No
871-B66329G1500X187

TDK

Ferrite Cores & Accessories E42/21/20 N87LP 1.5MM

Learn More

Datasheet

86In Stock

£4.55

£3.10

£2.61

£2.28

£1.89

Min.: 1
Mult.: 1

E42/21/20

Ferrite Cores

Gapped

E Core

42 x 21 x 20

259 nH

N87

Bulk

Ferrite Cores & Accessories E 55/28/21 N87 GAP 1.0+-0

B66335G1000X187
TDK
1: £4.65
26In Stock
216Expected 18/01/2027

Mfr. Part No.
B66335G1000X187

Mouser Part No
871-B66335G1000X187

TDK

Ferrite Cores & Accessories E 55/28/21 N87 GAP 1.0+-0

Learn More

Datasheet

26In Stock

216Expected 18/01/2027

£4.65

£3.23

£2.58

£2.37

£2.23

Min.: 1
Mult.: 1

E55/28/21

Ferrite Cores

Gapped

E Core

55 x 28 x 21

1 uH

N87

Bulk

Ferrite Cores & Accessories E55/28/21 N87LP 2.0MM

B66335G2000X187
TDK
1: £4.66
118In Stock
432Expected 18/01/2027

Mfr. Part No.
B66335G2000X187

Mouser Part No
871-B66335G2000X187

TDK

Ferrite Cores & Accessories E55/28/21 N87LP 2.0MM

Learn More

Datasheet

118In Stock

432Expected 18/01/2027

£4.66

£3.24

£2.59

£2.37

£2.23

Min.: 1
Mult.: 1

E55/28/21

Ferrite Cores

Gapped

E Core

55 x 28 x 21

292 nH

N87

Bulk

Ferrite Cores & Accessories E55/28/21-N87-DG250

B66335Q0250K187
TDK
1: £5.12
137In Stock

Mfr. Part No.
B66335Q0250K187

Mouser Part No
871-B66335Q0250K187

TDK

Ferrite Cores & Accessories E55/28/21-N87-DG250

Learn More

Datasheet

137In Stock

£5.12

£3.56

£2.85

£2.61

View

Min.: 1
Mult.: 1

E55/28/21

Ferrite Cores

Gapped

E Core

55 mm x 21 mm

250 nH

10 %

N87

Tray

Ferrite Cores & Accessories EC41/20/12 N27OL

B66339G0000X127
TDK
1: £2.82
1In Stock

Mfr. Part No.
B66339G0000X127

Mouser Part No
871-B66339GX127

TDK

Ferrite Cores & Accessories EC41/20/12 N27OL

Learn More

Datasheet

1In Stock

£2.82

£1.94

£1.64

£1.44

View

Min.: 1
Mult.: 1

EC35/17/10

Ferrite Cores

Ungapped

EC Core

41 x 20 x 12

2.7 uH

- 20 %, + 30 %

N27

Bulk

Ferrite Cores & Accessories EC52/24/14 N27OL

B66341G0000X127
TDK
1: £4.21
134In Stock

Mfr. Part No.
B66341G0000X127

Mouser Part No
871-B66341G0000X127

TDK

Ferrite Cores & Accessories EC52/24/14 N27OL

Learn More

134In Stock

£4.21

£2.87

£2.43

£2.12

View

Min.: 1
Mult.: 1

EC41/20/12

Ferrite Cores

Ungapped

EC Core

52 x 24 x 14

N27

Bulk

Ferrite Cores & Accessories E55/28/25-N87-DG250

B66344Q0250K187
TDK
1: £6.29
167In Stock

Mfr. Part No.
B66344Q0250K187

Mouser Part No
871-B66344Q0250K187

TDK

Ferrite Cores & Accessories E55/28/25-N87-DG250

Learn More

Datasheet

167In Stock

£6.29

£4.36

£3.49

£3.17

£2.84

Min.: 1
Mult.: 1

E55/28/25

Ferrite Cores

Distributed Gap

E Core

55 x 28 x 25

250 nH

N87

Tray

Ferrite Cores & Accessories E55/28/25-N87-DG400

B66344Q0400K187
TDK
1: £6.29
82In Stock
200Expected 19/10/2026

Mfr. Part No.
B66344Q0400K187

Mouser Part No
871-B66344Q0400K187

TDK

Ferrite Cores & Accessories E55/28/25-N87-DG400

Learn More

Datasheet

82In Stock

200Expected 19/10/2026

£6.29

£4.37

£3.49

£3.43

View

Min.: 1
Mult.: 1

E55/28/26

Ferrite Cores

Distributed Gap

E Core

55 x 28 x 25

400 nH

N87

Tray

Ferrite Cores & Accessories ETD29/16/10 N27OL

B66358G0000X127
TDK
1: £1.96
952In Stock

Mfr. Part No.
B66358G0000X127

Mouser Part No
871-B66358G0000X127

TDK

Ferrite Cores & Accessories ETD29/16/10 N27OL

Learn More

Datasheet

952In Stock

£1.96

£1.36

£1.16

£1.03

View

Min.: 1
Mult.: 1

ETD29/16/10

Ferrite Cores

Ungapped

ETD Core

29 x 16 x 10

2 uH

- 20 %, + 30 %

N27

Bulk

Ferrite Cores & Accessories ETD29/16/10 N87LP 0.2MM

B66358G0200X187
TDK
1: £1.95
936In Stock

Mfr. Part No.
B66358G0200X187

Mouser Part No
871-B66358G0200X187

TDK

Ferrite Cores & Accessories ETD29/16/10 N87LP 0.2MM

Learn More

Datasheet

936In Stock

£1.95

£1.34

£1.15

£1.01

View

Min.: 1
Mult.: 1

ETD29/16/10

Ferrite Cores

Gapped

ETD Core

29 x 16 x 10

383 nH

N87

Bulk

Ferrite Cores & Accessories ETD29/16 10-N87-G1000

B66358G1000X187
TDK
1: £1.94
77In Stock
900Expected 16/11/2026

Mfr. Part No.
B66358G1000X187

Mouser Part No
871-B66358G1000X187

TDK

Ferrite Cores & Accessories ETD29/16 10-N87-G1000

Learn More

Datasheet

77In Stock

900Expected 16/11/2026

£1.94

£1.34

£1.14

£1.00

View

Min.: 1
Mult.: 1

ETD29/16/10

Ferrite Cores

Gapped

ETD Core

29 x 16 x 10

124 nH

N87

Bulk

Ferrite Cores & Accessories ETD29/16/10 N27 gap 0.5 mm

B66358G500X127
TDK
1: £1.71
1,156In Stock

Mfr. Part No.
B66358G500X127

Mouser Part No
871-B66358G500X127

TDK

Ferrite Cores & Accessories ETD29/16/10 N27 gap 0.5 mm

Learn More

Datasheet

1,156In Stock

£1.71

£1.26

£1.01

£0.89

View

Min.: 1
Mult.: 1

B66358G

Ferrite Cores

Gapped

ETD Core

29 x 16 x 10

201 nH

N27

Bulk

Ferrite Cores & Accessories COIL FORMER VALOX 420 SEO

B66359B1013T001
TDK
1: £1.72
765In Stock
7,200On Order

Mfr. Part No.
B66359B1013T001

Mouser Part No
871-B66359B1013T001

TDK

Ferrite Cores & Accessories COIL FORMER VALOX 420 SEO

Learn More

Datasheet

765In Stock

7,200On Order

£1.72

£1.32

£1.24

£1.20

View

Min.: 1
Mult.: 1

ETD29/16/10

Hardware & Accessories

Ungapped

ETD Core

29 x 16 x 10

13 Pin

Tray

Ferrite Cores & Accessories ETD34/17/11 N27OL

B66361G0000X127
TDK
1: £2.05
1,097In Stock

Mfr. Part No.
B66361G0000X127

Mouser Part No
871-B66361G0000X127

TDK

Ferrite Cores & Accessories ETD34/17/11 N27OL

Learn More

Datasheet

1,097In Stock

£2.05

£1.42

£1.20

£1.07

View

Min.: 1
Mult.: 1

ETD29/16/10

Ferrite Cores

Ungapped

ETD Core

34 x 17 x 11

2.4 uH

- 20 %, + 30 %

N27

Bulk

Ferrite Cores & Accessories ETD34/17/11 N87LP 0.5MM

B66361G0500X187
TDK
1: £2.06
874In Stock
1,200Expected 21/12/2026

Mfr. Part No.
B66361G0500X187

Mouser Part No
871-B66361G0500X187

TDK

Ferrite Cores & Accessories ETD34/17/11 N87LP 0.5MM

Learn More

Datasheet

874In Stock

1,200Expected 21/12/2026

£2.06

£1.42

£1.21

£1.07

View

Min.: 1
Mult.: 1

ETD34/17/11

Ferrite Cores

Gapped

ETD Core

34 x 17 x 11

251 nH

N87

Bulk

Ferrite Cores & Accessories ETD34/17/11 N87 gap 0.2 mm

B66361G200X187
TDK
1: £2.05
1,223In Stock

Mfr. Part No.
B66361G200X187

Mouser Part No
871-B66361G200X187

TDK

Ferrite Cores & Accessories ETD34/17/11 N87 gap 0.2 mm

Learn More

Datasheet

1,223In Stock

£2.05

£1.41

£1.20

£1.07

View

Min.: 1
Mult.: 1

B66361G

Ferrite Cores

Gapped

ETD Core

34 x 17 x 11

482 nH

N87

Bulk

Ferrite Cores & Accessories ETD34/17/11 N27 gap 0.5 mm

B66361G500X127
TDK
1: £2.11
285In Stock

Mfr. Part No.
B66361G500X127

Mouser Part No
871-B66361G500X127

TDK

Ferrite Cores & Accessories ETD34/17/11 N27 gap 0.5 mm

Learn More

Datasheet

285In Stock

£2.11

£1.46

£1.25

£1.10

View

Min.: 1
Mult.: 1

B66361G

Ferrite Cores

Gapped

ETD Core

34 x 17 x 11

251 nH

N27

Bulk

Ferrite Cores & Accessories

Customer Service Office

Company

Resources

Support

26
30
38
40
56
59
61
62
65
66
78
89
90
92
93
94
95
96
98
35N

Accessories
Amorphous Core
Cable Single
Clamp
Coil Former
Coil Former (Bobbins)
Cut Core
Distributed Gap
Double Aperture Core
End Clip
EQ Core
Ferrite Block
Ferrite Blocks
Ferrite Core for Switching Power Supplies
Ferrite Core for Telecommunication
Gapped
I Core
Insulating Washer
Mounting Assembly
Multi-Hole Connector Plate

DE Core
DU Core
EC Core
E Core
EE Core
EER Core
EF Core
EFD Core
EI Core
ELP Core
EM Core
EP Core
EPO Core
EPX Core
EQ Core
ER Core
ER LP Core
ETD Core
EV Core
FEM Core

5.95 mm x 1.65 mm
9.5 mm x 5 mm
9.7 mm x 3.3 mm
11 mm x 6 mm
11.4 mm x 4.6 mm
12.95 mm x 4.9 mm
12.95 mm x 6.6 mm
14 mm x 5 mm
14.5 mm x 6.7 mm
14.6 mm x 6.8 mm
15 mm x 4.65 mm
17.9 mm x 8.2 mm
18 mm x 10 mm
18 mm x 9.7 mm
20 mm x 6.65 mm
21.8 mm x 15.8 mm
22.5 mm x 6.6 mm
23.2 mm x 11 mm
23.2 mm x 12.5 mm
25 mm x 18 mm

2.4 nH
4.75 nH
5.2 nH
16 nH
17 nH
17.5 nH
18 nH
20 nH
21 nH
25 nH
26 nH
32 nH
35 nH
38 nH
39 nH
40 nH
45 nH
49 nH
50 nH
55 nH

0.03 %
0.04 %
0.05 %
0.08 %
0.1 %
0.15 %
0.25 %
- 30 %, + 40 %
- 20 %, + 30 %
2 %
3 %
4 %
5 %
6 %
7 %
8 %
10 %
12 %
15 %
20 %

31
43
44
52
61
67
68
75
77
78
95
96
98
9415
ABS
E130I
E Core
Ferrite
Finemet
GFR Liquid Crystal Polymer