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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 COIL FORMER VALOX 420 SEO

B66359B1013T001
TDK
1: ¥380.4
1,315In Stock
7,200On Order

Mfr. Part #
B66359B1013T001

Mouser Part #
871-B66359B1013T001

TDK

Ferrite Cores & Accessories COIL FORMER VALOX 420 SEO

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Datasheet

1,315In Stock

7,200On Order

¥380.4

¥292.3

¥274.1

¥265.8

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: ¥453.5
1,097In Stock

Mfr. Part #
B66361G0000X127

Mouser Part #
871-B66361G0000X127

TDK

Ferrite Cores & Accessories ETD34/17/11 N27OL

Learn More

Datasheet

1,097In Stock

¥453.5

¥313.9

¥267.4

¥235.9

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: ¥455.1
874In Stock
1,200Expected 12/21/2026

Mfr. Part #
B66361G0500X187

Mouser Part #
871-B66361G0500X187

TDK

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

Learn More

Datasheet

874In Stock

1,200Expected 12/21/2026

¥455.1

¥313.9

¥269.1

¥237.5

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 N27 gap 0.5 mm

B66361G500X127
TDK
1: ¥466.7
285In Stock

Mfr. Part #
B66361G500X127

Mouser Part #
871-B66361G500X127

TDK

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

Learn More

Datasheet

285In Stock

¥466.7

¥322.2

¥275.7

¥242.5

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: ¥641.1
395In Stock

Mfr. Part #
B66363Q0100K187

Mouser Part #
871-B66363Q0100K187

TDK

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

Learn More

Datasheet

395In Stock

¥641.1

¥440.2

¥373.7

¥327.2

View

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: ¥639.5
382In Stock

Mfr. Part #
B66363Q0150K187

Mouser Part #
871-B66363Q0150K187

TDK

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

Learn More

Datasheet

382In Stock

¥639.5

¥438.5

¥372.1

¥325.6

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: ¥55.5
2,800In Stock

Mfr. Part #
B66364A2000X

Mouser Part #
871-B66364A2000X

TDK

Ferrite Cores & Accessories CLM-ETD39

Learn More

Datasheet

2,800In Stock

¥55.5

¥51.8

¥49.5

Min.: 200
Mult.: 200

B66364A

Hardware & Accessories

Gapped

ETD Core

39 x 20 x 13

Bulk

Ferrite Cores & Accessories COIL FORMER RNITE FR 530

B66364W1016T1
TDK
1: ¥367.1
621In Stock
800Expected 8/26/2026

Mfr. Part #
B66364W1016T1

Mouser Part #
871-B66364W1016T1

TDK

Ferrite Cores & Accessories COIL FORMER RNITE FR 530

Learn More

Datasheet

621In Stock

800Expected 8/26/2026

¥367.1

¥332.2

¥320.6

¥308.9

View

Min.: 1
Mult.: 1

B66364W

Hardware & Accessories

Gapped

ETD Core

39 x 20 x 13

16 Pin

Tray

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

B66365G1000X187
TDK
1: ¥858.7
59In Stock
576Expected 10/19/2026

Mfr. Part #
B66365G1000X187

Mouser Part #
871-B66365G1000X187

TDK

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

Learn More

Datasheet

59In Stock

576Expected 10/19/2026

¥858.7

¥588

¥498.3

¥436.8

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: ¥837.1
88In Stock

Mfr. Part #
B66365G2000X187

Mouser Part #
871-B66365G2000X187

TDK

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

Learn More

Datasheet

88In Stock

¥837.1

¥574.7

¥486.7

¥426.9

View

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: ¥837.1
254In Stock
288Expected 1/18/2027

Mfr. Part #
B66365G0500X187

Mouser Part #
871-B66365G500X187

TDK

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

Learn More

Datasheet

254In Stock

288Expected 1/18/2027

¥837.1

¥574.7

¥486.7

¥426.9

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 CLM-ETD44 2 PCS REQUIRED

B66366A2000X000
TDK
1: ¥99.7
3,916In Stock
2,700Expected 8/26/2026

Mfr. Part #
B66366A2000X000

Mouser Part #
871-B66366A2000X

TDK

Ferrite Cores & Accessories CLM-ETD44 2 PCS REQUIRED

Learn More

Datasheet

3,916In Stock

2,700Expected 8/26/2026

¥99.7

¥90.2

¥83.9

¥79.9

View

Min.: 1
Mult.: 1

ETD44/22/15

Hardware & Accessories

Ungapped

ETD Core

44 x 22 x 15

Bulk

Ferrite Cores & Accessories COIL FORMER VALOX 420 SEO

B66366B1018T1
TDK
1: ¥578
306In Stock
300Expected 10/20/2026

Mfr. Part #
B66366B1018T1

Mouser Part #
871-B66366B1018T1

TDK

Ferrite Cores & Accessories COIL FORMER VALOX 420 SEO

Learn More

Datasheet

306In Stock

300Expected 10/20/2026

¥578

¥397

¥337.2

¥294

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: ¥584.7
235In Stock
1,200On Order

Mfr. Part #
B66366W1018T001

Mouser Part #
871-B66366W1018T001

TDK

Ferrite Cores & Accessories COIL FORMER RYNITE FR 530

Learn More

Datasheet

235In Stock

1,200On Order

¥584.7

¥402

¥340.5

¥297.3

View

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: ¥1,056.4
51In Stock

Mfr. Part #
B66367G0200X187

Mouser Part #
871-B66367G0200X187

TDK

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

Learn More

Datasheet

51In Stock

¥1,056.4

¥724.2

¥614.6

¥538.2

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: ¥918.5
16In Stock
2,400On Order

Mfr. Part #
B66367G0500X187

Mouser Part #
871-B66367G500X187

TDK

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

Learn More

Datasheet

16In Stock

2,400On Order

¥918.5

¥629.5

¥534.8

¥468.4

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: ¥1,039.8
210In Stock

Mfr. Part #
B66367GX127

Mouser Part #
871-B66367GX127

TDK

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

Learn More

Datasheet

210In Stock

¥1,039.8

¥712.6

¥604.6

¥529.9

View

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: ¥1,606.2
248In Stock

Mfr. Part #
B66367G0000X197

Mouser Part #
871-B66367GX197

TDK

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

Learn More

Datasheet

248In Stock

¥1,606.2

¥1,139.4

¥901.9

¥848.8

¥798.9

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: ¥1,186
55In Stock

Mfr. Part #
B66367Q0250K187

Mouser Part #
871-B66367Q0250K187

TDK

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

Learn More

Datasheet

55In Stock

¥1,186

¥823.9

¥659.4

¥604.6

View

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: ¥2,993.1
42In Stock

Mfr. Part #
B66371G1500X127

Mouser Part #
871-B66371G1500X127

TDK

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

Learn More

Datasheet

42In Stock

¥2,993.1

¥2,044.7

¥1,822.1

¥1,730.8

Min.: 1
Mult.: 1

E70/33/32

Ferrite Cores

Gapped

E Core

70 x 33 x 32

655 nH

N27

Bulk

Ferrite Cores & Accessories E70/33/32 N27OL

B66371G0000X127
TDK
1: ¥2,398.5
36In Stock

Mfr. Part #
B66371G0000X127

Mouser Part #
871-B66371GX127

TDK

Ferrite Cores & Accessories E70/33/32 N27OL

Learn More

Datasheet

36In Stock

¥2,398.5

¥1,735.7

¥1,393.6

¥1,353.7

Min.: 1
Mult.: 1

E34/14/9

Ferrite Cores

Ungapped

E Core

70 x 33 x 32

2.15 uH

- 20 %, + 30 %

N27

Bulk

Ferrite Cores & Accessories E70/33/32 N95 ungapped

B66371G0000X195
TDK
1: ¥3,036.3
60In Stock
180Expected 12/18/2026

Mfr. Part #
B66371G0000X195

Mouser Part #
871-B66371GX195

TDK

Ferrite Cores & Accessories E70/33/32 N95 ungapped

Learn More

Datasheet

60In Stock

180Expected 12/18/2026

¥3,036.3

¥2,049.7

¥1,823.8

¥1,732.4

¥1,558

Min.: 1
Mult.: 1

E70/33/32

Ferrite Cores

Ungapped

E Core

70 x 33 x 32

N95

Bulk

Ferrite Cores & Accessories E70/33/32-N87-DG250 FERRITE CORE SET

B66371Q0250K187
TDK
1: ¥3,074.5
45In Stock

Mfr. Part #
B66371Q0250K187

Mouser Part #
871-B66371Q0250K187

TDK

Ferrite Cores & Accessories E70/33/32-N87-DG250 FERRITE CORE SET

Learn More

Datasheet

45In Stock

¥3,074.5

¥2,225.7

¥1,787.2

¥1,734.1

Min.: 1
Mult.: 1

E70/33/32

Ferrite Cores

Distributed Gap

E Core

E 70 x 33 x 32

250 nH

N87

Tray

Ferrite Cores & Accessories E70/33/32-N87-DG400

B66371Q0400K187
TDK
1: ¥3,074.5
37In Stock
36Expected 9/11/2026

Mfr. Part #
B66371Q0400K187

Mouser Part #
871-B66371Q0400K187

TDK

Ferrite Cores & Accessories E70/33/32-N87-DG400

Learn More

Datasheet

37In Stock

36Expected 9/11/2026

¥3,074.5

¥2,225.7

¥1,788.9

¥1,734.1

Min.: 1
Mult.: 1

E70/33/32

Ferrite Cores

Distributed Gap

E Core

70 x 33 x 32

400 nH

N87

Tray

Ferrite Cores & Accessories CF-E70-1S

B66372A2000T001
TDK
1: ¥1,885.2
126In Stock

Mfr. Part #
B66372A2000T001

Mouser Part #
871-B66372A2000T1

TDK

Ferrite Cores & Accessories CF-E70-1S

Learn More

Datasheet

126In Stock

¥1,885.2

¥1,372

¥1,096.3

¥1,043.1

¥1,029.8

Min.: 1
Mult.: 1

E70/33/32

Hardware & Accessories

Ungapped

E Core

70 x 33 x 32

Coil Former

Tray

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