.hide-partial { max-height: none; } .show-more { display: none; }

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.
More...

Please view our selection of ferrite cores below.

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 3,245

Applied Filters:

Manufacturer

Series

Product

Type

Core

Core Size

Inductance

Tolerance

Accessory Type

Number of Pins

Core Material

Termination Style

Packaging

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

Ferrite Cores & Accessories EC52/24/14 N27OL

B66341G0000X127
TDK
1: £4.21
97In Stock

Mfr. Part No.
B66341G0000X127

Mouser Part No
871-B66341G0000X127

TDK

Ferrite Cores & Accessories EC52/24/14 N27OL

Learn More

97In 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: £1.96
934In Stock

Mfr. Part No.
B66358G0200X187

Mouser Part No
871-B66358G0200X187

TDK

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

Learn More

Datasheet

934In Stock

£1.96

£1.36

£1.15

£1.02

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
75In 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

75In 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 COIL FORMER VALOX 420 SEO

B66359B1013T001
TDK
1: £1.72
6,941On Order

Mfr. Part No.
B66359B1013T001

Mouser Part No
871-B66359B1013T001

TDK

Ferrite Cores & Accessories COIL FORMER VALOX 420 SEO

Learn More

Datasheet

6,941On 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: £2.07
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

£2.07

£1.42

£1.22

£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
852In 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

852In 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: £2.06
1,171In 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

1,171In Stock

£2.06

£1.42

£1.21

£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 ETD39/20/13-N87-DG100

B66363Q0100K187
TDK
1: £2.94
395In Stock

Mfr. Part No.
B66363Q0100K187

Mouser Part No
871-B66363Q0100K187

TDK

Ferrite Cores & Accessories ETD39/20/13-N87-DG100

Learn More

Datasheet

395In Stock

£2.94

£2.02

£1.71

£1.50

£1.16

Min.: 1
Mult.: 1

ETD39/20/13

Ferrite Cores

Gapped

ETD Core

38.9 mm x 12.8 mm

100 nH

10 %

N87

Tray

Ferrite Cores & Accessories ETD39/20/13-N87-DG150

B66363Q0150K187
TDK
1: £2.38
378In Stock

Mfr. Part No.
B66363Q0150K187

Mouser Part No
871-B66363Q0150K187

TDK

Ferrite Cores & Accessories ETD39/20/13-N87-DG150

Learn More

Datasheet

378In Stock

£2.38

£1.63

£1.39

£1.22

View

Min.: 1
Mult.: 1

ETD39/20/13

Ferrite Cores

Gapped

ETD Core

38.9 mm x 12.8 mm

150 nH

10 %

N87

Tray

Ferrite Cores & Accessories CLM-ETD39

B66364A2000X
TDK
200: £0.258
2,800In Stock

Mfr. Part No.
B66364A2000X

Mouser Part No
871-B66364A2000X

TDK

Ferrite Cores & Accessories CLM-ETD39

Learn More

Datasheet

2,800In Stock

£0.258

£0.241

£0.223

Min.: 200
Mult.: 200

B66364A

Hardware & Accessories

Gapped

ETD Core

39 x 20 x 13

Bulk

Ferrite Cores & Accessories ETD44/22 15-N87-G1000

B66365G1000X187
TDK
1: £3.88
39In Stock
576Expected 19/10/2026

Mfr. Part No.
B66365G1000X187

Mouser Part No
871-B66365G1000X187

TDK

Ferrite Cores & Accessories ETD44/22 15-N87-G1000

Learn More

Datasheet

39In Stock

576Expected 19/10/2026

£3.88

£2.65

£2.25

£1.97

View

Min.: 1
Mult.: 1

ETD44/22/15

Ferrite Cores

Gapped

ETD Core

44 x 22 x 15

262 nH

N87

Bulk

Ferrite Cores & Accessories 2 uH 44 x 22 x 15 ETD Core Gapped N87

B66365G2000X187
TDK
1: £3.46
88In Stock

Mfr. Part No.
B66365G2000X187

Mouser Part No
871-B66365G2000X187

TDK

Ferrite Cores & Accessories 2 uH 44 x 22 x 15 ETD Core Gapped N87

Learn More

Datasheet

88In Stock

£3.46

£2.37

£2.00

£1.75

£1.50

Min.: 1
Mult.: 1

ETD44/22/15

Ferrite Cores

Gapped

ETD Core

44 x 22 x 15

2 uH

N87

Tray

Ferrite Cores & Accessories ETD44/22/15 N87LP 0.5MM

B66365G0500X187
TDK
1: £3.75
258In Stock
288Expected 18/01/2027

Mfr. Part No.
B66365G0500X187

Mouser Part No
871-B66365G500X187

TDK

Ferrite Cores & Accessories ETD44/22/15 N87LP 0.5MM

Learn More

Datasheet

258In Stock

288Expected 18/01/2027

£3.75

£2.57

£2.17

£1.90

View

Min.: 1
Mult.: 1

ETD44/22/15

Ferrite Cores

Gapped

ETD Core

44 x 22 x 15

438 nH

N87

Bulk

Ferrite Cores & Accessories COIL FORMER VALOX 420 SEO

B66366B1018T1
TDK
1: £2.19
281In Stock
300Expected 20/10/2026

Mfr. Part No.
B66366B1018T1

Mouser Part No
871-B66366B1018T1

TDK

Ferrite Cores & Accessories COIL FORMER VALOX 420 SEO

Learn More

Datasheet

281In Stock

300Expected 20/10/2026

£2.19

£1.99

£1.90

£1.85

View

Min.: 1
Mult.: 1

B66366B

Hardware & Accessories

Ungapped

ETD Core

44 x 22 x 15

Coil Former with Solder Pins

18 Pin

Tray

Ferrite Cores & Accessories COIL FORMER RYNITE FR 530

B66366W1018T001
TDK
1: £2.37
215In Stock
1,200On Order

Mfr. Part No.
B66366W1018T001

Mouser Part No
871-B66366W1018T001

TDK

Ferrite Cores & Accessories COIL FORMER RYNITE FR 530

Learn More

Datasheet

215In Stock

1,200On Order

£2.37

£1.86

£1.58

£1.27

£1.15

Min.: 1
Mult.: 1

ETD44/22/15

Hardware & Accessories

Ungapped

ETD Core

44 x 22 x 15

18 Pin

Tray

Ferrite Cores & Accessories ETD49/25/16 N87LP 0.2MM

B66367G0200X187
TDK
1: £4.64
51In Stock

Mfr. Part No.
B66367G0200X187

Mouser Part No
871-B66367G0200X187

TDK

Ferrite Cores & Accessories ETD49/25/16 N87LP 0.2MM

Learn More

Datasheet

51In Stock

£4.64

£3.19

£2.71

£2.37

View

Min.: 1
Mult.: 1

ETD49/25/16

Ferrite Cores

Gapped

ETD Core

49 x 25 x 16

1.035 uH

N87

Bulk

Ferrite Cores & Accessories ETD49/25/16 N87LP 0.5MM

B66367G0500X187
TDK
1: £4.65
16In Stock
2,400On Order

Mfr. Part No.
B66367G0500X187

Mouser Part No
871-B66367G500X187

TDK

Ferrite Cores & Accessories ETD49/25/16 N87LP 0.5MM

Learn More

Datasheet

16In Stock

2,400On Order

£4.65

£3.16

£2.51

£2.19

View

Min.: 1
Mult.: 1

ETD49/25/16

Ferrite Cores

Gapped

ETD Core

49 x 25 x 16

525 nH

N87

Bulk

Ferrite Cores & Accessories ETD49/25/16 N27 3700 +30% -20%

B66367GX127
TDK
1: £4.51
210In Stock

Mfr. Part No.
B66367GX127

Mouser Part No
871-B66367GX127

TDK

Ferrite Cores & Accessories ETD49/25/16 N27 3700 +30% -20%

Learn More

Datasheet

210In Stock

£4.51

£3.07

£2.60

£2.27

£1.88

Min.: 1
Mult.: 1

B66367G

Ferrite Cores

Ungapped

ETD Core

49 x 25 x 16

3.7 uH

- 20 %, + 30 %

N27

Bulk

Ferrite Cores & Accessories ETD49/25/16 N97 3900 +30% -20%

B66367G0000X197
TDK
1: £7.40
246In Stock

Mfr. Part No.
B66367G0000X197

Mouser Part No
871-B66367GX197

TDK

Ferrite Cores & Accessories ETD49/25/16 N97 3900 +30% -20%

Learn More

Datasheet

246In Stock

£7.40

£5.08

£4.16

£3.68

£3.43

Min.: 1
Mult.: 1

ETD49/25/16

Ferrite Cores

Ungapped

ETD Core

49 x 25 x 16

3.9 uH

- 20 %, + 30 %

N97

Bulk

Ferrite Cores & Accessories ETD49/25/16-N87-DG250

B66367Q0250K187
TDK
1: £5.48
55In Stock

Mfr. Part No.
B66367Q0250K187

Mouser Part No
871-B66367Q0250K187

TDK

Ferrite Cores & Accessories ETD49/25/16-N87-DG250

Learn More

Datasheet

55In Stock

£5.48

£3.76

£3.07

£2.76

£2.43

Min.: 1
Mult.: 1

ETD49/25/16

Ferrite Cores

Gapped

ETD Core

48.5 mm x 16.7 mm

250 nH

10 %

N87

Tray

Ferrite Cores & Accessories E70/33/32 N27LP 1.5 MM

B66371G1500X127
TDK
1: £13.54
42In Stock

Mfr. Part No.
B66371G1500X127

Mouser Part No
871-B66371G1500X127

TDK

Ferrite Cores & Accessories E70/33/32 N27LP 1.5 MM

Learn More

Datasheet

42In Stock

£13.54

£9.25

£8.24

£7.32

Min.: 1
Mult.: 1

E70/33/32

Ferrite Cores

Gapped

E Core

70 x 33 x 32

655 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