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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: 3,246

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Part #

Ferrite Cores & Accessories COIL FORMER VALOX 420 SEO

B65808E1508T001
TDK
1: ¥380.4
2,569In Stock
2,000Expected 9/1/2026

Mfr. Part #
B65808E1508T001

Mouser Part #
871-B65808E1508T1

TDK

Ferrite Cores & Accessories COIL FORMER VALOX 420 SEO

Learn More

Datasheet

2,569In Stock

2,000Expected 9/1/2026

¥380.4

¥262.4

¥224.2

¥197.7

View

Min.: 1
Mult.: 1

RM6

Hardware & Accessories

Ungapped

RM Core

RM 6

Coil Former with Angled Pins

8 Pin

Angled Pin

Bulk

Ferrite Cores & Accessories CLM-RM6 2 PCS REQUIRED

B65808J2204X000
TDK
1: ¥49.8
27,003In Stock

Mfr. Part #
B65808J2204X000

Mouser Part #
871-B65808J2204X000

TDK

Ferrite Cores & Accessories CLM-RM6 2 PCS REQUIRED

Learn More

Datasheet

27,003In Stock

¥49.8

¥35.4

¥30.7

¥27.4

View

Min.: 1
Mult.: 1

RM6

Hardware & Accessories

Ungapped

RM Core

RM 6

Bulk

Ferrite Cores & Accessories COIL FORMER RM 6 6/1

B65808N1006D001
TDK
1: ¥212.6
13,331In Stock
1,000Expected 8/19/2026

Mfr. Part #
B65808N1006D001

Mouser Part #
871-B65808N1006D001

TDK

Ferrite Cores & Accessories COIL FORMER RM 6 6/1

Learn More

Datasheet

13,331In Stock

1,000Expected 8/19/2026

¥212.6

¥167.8

¥143.8

¥132.4

View

Min.: 1
Mult.: 1

RM6

Hardware & Accessories

Ungapped

RM Core

RM 6

6 Pin

Tray

Ferrite Cores & Accessories COIL FORMER SUMIKON PM 9630

B65808N1006D002
TDK
1: ¥348.8
1,754In Stock

Mfr. Part #
B65808N1006D002

Mouser Part #
871-B65808N1006D002

TDK

Ferrite Cores & Accessories COIL FORMER SUMIKON PM 9630

Learn More

Datasheet

1,754In Stock

¥348.8

¥240.8

¥206

¥182.7

View

Min.: 1
Mult.: 1

RM6

Hardware & Accessories

Ungapped

RM Core

RM 6

6 Pin

Tray

Ferrite Cores & Accessories 250 nH 0.03 RM 8 RM Core Gapped N48

B65811F250A48
TDK
1: ¥1,362
509In Stock

Mfr. Part #
B65811F250A48

Mouser Part #
871-B65811F250A48

TDK

Ferrite Cores & Accessories 250 nH 0.03 RM 8 RM Core Gapped N48

Learn More

Datasheet

509In Stock

¥1,362

¥945.1

¥757.4

¥694.3

View

Min.: 1
Mult.: 1

B65811F

Ferrite Cores

Gapped

RM Core

RM 8

250 nH

3 %

N48

Blister Pack

Ferrite Cores & Accessories RM8/I-N97 Sold as set

B65811J0000R097
TDK
1: ¥842.1
941In Stock

Mfr. Part #
B65811J0000R097

Mouser Part #
871-B65811J0000R097

TDK

Ferrite Cores & Accessories RM8/I-N97 Sold as set

Learn More

Datasheet

941In Stock

¥842.1

¥578

¥490

¥430.2

View

Min.: 1
Mult.: 1

RM8

Ferrite Cores

Ungapped

RM Core

RM 8

3.3 uH

- 20 %, + 30 %

N97

Blister Pack

Ferrite Cores & Accessories RM8 N87 250 +3%-3% Sold as set

B65811J0250A087
TDK
1: ¥681
1,388In Stock

Mfr. Part #
B65811J0250A087

Mouser Part #
871-B65811J0250A087

TDK

Ferrite Cores & Accessories RM8 N87 250 +3%-3% Sold as set

Learn More

Datasheet

1,388In Stock

¥681

¥466.7

¥397

¥347.1

View

Min.: 1
Mult.: 1

RM8

Ferrite Cores

Gapped

RM Core

RM 8

250 nH

3 %

N87

Blister Pack

Ferrite Cores & Accessories RM8 N41 250 +5%-5% Sold as set

B65811J0250J041
TDK
1: ¥813.9
1,824In Stock

Mfr. Part #
B65811J0250J041

Mouser Part #
871-B65811J0250J041

TDK

Ferrite Cores & Accessories RM8 N41 250 +5%-5% Sold as set

Learn More

Datasheet

1,824In Stock

¥813.9

¥558.1

¥473.4

¥415.3

View

Min.: 1
Mult.: 1

RM8

Ferrite Cores

Gapped

RM Core

RM 8

250 nH

5 %

N41

Blister Pack

Ferrite Cores & Accessories RM8N41 1600 +10%-10% Sold as set

B65811J1600K041
TDK
1: ¥813.9
1,264In Stock

Mfr. Part #
B65811J1600K041

Mouser Part #
871-B65811J1600K041

TDK

Ferrite Cores & Accessories RM8N41 1600 +10%-10% Sold as set

Learn More

Datasheet

1,264In Stock

¥813.9

¥558.1

¥473.4

¥415.3

View

Min.: 1
Mult.: 1

RM8

Ferrite Cores

Gapped

RM Core

RM 8

160 nH

10 %

N41

Blister Pack

Ferrite Cores & Accessories RM8/I-N87

B65811JR87
TDK
1: ¥649.5
2,019In Stock
3,200Expected 3/8/2027

Mfr. Part #
B65811JR87

Mouser Part #
871-B65811JR87

TDK

Ferrite Cores & Accessories RM8/I-N87

Learn More

Datasheet

2,019In Stock

3,200Expected 3/8/2027

¥649.5

¥445.1

¥378.7

¥332.2

View

Min.: 1
Mult.: 1

B65811J

Ferrite Cores

Ungapped

RM Core

RM 8

3.3 uH

- 20 %, + 30 %

N87

Blister Pack

Ferrite Cores & Accessories CLM-RM8-G 2 PCS REQUIRED

B65812A2203X
TDK
1: ¥53.2
54,785In Stock

Mfr. Part #
B65812A2203X

Mouser Part #
871-B65812A2203X

TDK

Ferrite Cores & Accessories CLM-RM8-G 2 PCS REQUIRED

Learn More

Datasheet

54,785In Stock

¥53.2

¥37.7

¥32.7

¥29.2

View

Min.: 1
Mult.: 1

B65812A

Hardware & Accessories

Ungapped

RM Core

RM 8

Clamp with Ground Terminal

Bulk

Ferrite Cores & Accessories Adjusting screw N22 M2 Pocan B3235

B65812B3003X22
TDK
1: ¥397
5,985In Stock

Mfr. Part #
B65812B3003X22

Mouser Part #
871-B65812B3003X22

TDK

Ferrite Cores & Accessories Adjusting screw N22 M2 Pocan B3235

Learn More

Datasheet

5,985In Stock

¥397

¥274.1

¥234.2

¥206

View

Min.: 1
Mult.: 1

B65812B

Hardware & Accessories

Ungapped

RM Core

RM 8

Gray

N22

Bulk

Ferrite Cores & Accessories COIL FORMER VALOX 420 SEO

B65812C1512T001
TDK
1: ¥335.5
6,023In Stock

Mfr. Part #
B65812C1512T001

Mouser Part #
871-B65812C1512T1

TDK

Ferrite Cores & Accessories COIL FORMER VALOX 420 SEO

Learn More

Datasheet

6,023In Stock

¥335.5

¥230.9

¥197.7

¥174.4

View

Min.: 1
Mult.: 1

RM8

Hardware & Accessories

Ungapped

RM Core

RM 8

12 Pin

Bulk

Ferrite Cores & Accessories WAS-RM8-2 MAKROFOL KL3

B65812C2005X000
TDK
1: ¥147.8
5,128In Stock

Mfr. Part #
B65812C2005X000

Mouser Part #
871-B65812C2005X

TDK

Ferrite Cores & Accessories WAS-RM8-2 MAKROFOL KL3

Learn More

Datasheet

5,128In Stock

¥147.8

¥102.2

¥88

¥78.6

View

Min.: 1
Mult.: 1

RM8

Hardware & Accessories

Ungapped

RM Core

RM 8

Bulk

Ferrite Cores & Accessories Insulating washer RM8 Flexiso FI 16000

B65812F5000X000
TDK
1: ¥172.7
7,632In Stock

Mfr. Part #
B65812F5000X000

Mouser Part #
871-B65812F5000X000

TDK

Ferrite Cores & Accessories Insulating washer RM8 Flexiso FI 16000

Learn More

Datasheet

7,632In Stock

¥172.7

¥119.4

¥102.6

¥91.2

View

Min.: 1
Mult.: 1

RM8

Ungapped

Bulk

Ferrite Cores & Accessories COIL FORMER SUMIKON PM 9630

B65812N1005D001
TDK
1: ¥235.9
1,731In Stock

Mfr. Part #
B65812N1005D001

Mouser Part #
871-B65812N1005D001

TDK

Ferrite Cores & Accessories COIL FORMER SUMIKON PM 9630

Learn More

Datasheet

1,731In Stock

¥235.9

¥214.3

¥197.7

¥182.7

View

Min.: 1
Mult.: 1

RM8

Hardware & Accessories

Ungapped

RM Core

RM 8

5 Pin

Tray

Ferrite Cores & Accessories COIL FORMER SUMIKON PM 9630

B65812N1008D001
TDK
1: ¥206
6,825In Stock
14,800On Order

Mfr. Part #
B65812N1008D001

Mouser Part #
871-B65812N1008D001

TDK

Ferrite Cores & Accessories COIL FORMER SUMIKON PM 9630

Learn More

Datasheet

6,825In Stock

14,800On Order

¥206

¥187.7

¥176.1

¥162.8

View

Min.: 1
Mult.: 1

RM8

Hardware & Accessories

Ungapped

RM Core

RM 8

8 Pin

Tray

Ferrite Cores & Accessories Coil former RM8 Sumikon PM 9630

B65812N1108D002
TDK
1: ¥602.9
1,051In Stock

Mfr. Part #
B65812N1108D002

Mouser Part #
871-B65812N1108D002

TDK

Ferrite Cores & Accessories Coil former RM8 Sumikon PM 9630

Learn More

Datasheet

1,051In Stock

¥602.9

¥413.6

¥350.5

¥307.3

View

Min.: 1
Mult.: 1

RM8

Ferrite Cores

Ungapped

RM 8

8 Pin

Tray

Ferrite Cores & Accessories RM10/I-N49 '+30%-20% Sold as set

B65813J0000R049
TDK
1: ¥985
753In Stock

Mfr. Part #
B65813J0000R049

Mouser Part #
871-B65813J0000R049

TDK

Ferrite Cores & Accessories RM10/I-N49 '+30%-20% Sold as set

Learn More

Datasheet

753In Stock

¥985

¥684.3

¥548.1

¥501.6

View

Min.: 1
Mult.: 1

RM10

Ferrite Cores

Ungapped

RM Core

RM 10

2.9 uH

- 20 %, + 30 %

N49

Blister Pack

Ferrite Cores & Accessories RM10/I-T38 '+40%-30% Sold as set

B65813J0000Y038
TDK
1: ¥1,061.4
693In Stock

Mfr. Part #
B65813J0000Y038

Mouser Part #
871-B65813J0000Y038

TDK

Ferrite Cores & Accessories RM10/I-T38 '+40%-30% Sold as set

Learn More

Datasheet

693In Stock

¥1,061.4

¥735.8

¥589.7

¥539.8

View

Min.: 1
Mult.: 1

RM10

Ferrite Cores

Ungapped

RM Core

RM 10

16 uH

- 30 %, + 40 %

T38

Blister Pack

Ferrite Cores & Accessories RM 10 N87 160 '+3%-3% Sold as set

B65813J0160A087
TDK
1: ¥906.9
710In Stock

Mfr. Part #
B65813J0160A087

Mouser Part #
871-B65813J0160A087

TDK

Ferrite Cores & Accessories RM 10 N87 160 '+3%-3% Sold as set

Learn More

Datasheet

710In Stock

¥906.9

¥621.2

¥528.2

¥461.8

View

Min.: 1
Mult.: 1

RM10

Ferrite Cores

Gapped

RM Core

RM 10

160 nH

3 %

N87

Blister Pack

Ferrite Cores & Accessories RM 10 N87 250 '+3%-3% Sold as set

B65813J0250A087
TDK
1: ¥908.6
808In Stock

Mfr. Part #
B65813J0250A087

Mouser Part #
871-B65813J0250A087

TDK

Ferrite Cores & Accessories RM 10 N87 250 '+3%-3% Sold as set

Learn More

Datasheet

808In Stock

¥908.6

¥622.9

¥529.9

¥463.4

View

Min.: 1
Mult.: 1

RM10

Ferrite Cores

Gapped

RM Core

RM 10

250 nH

3 %

N87

Blister Pack

Ferrite Cores & Accessories RM 10 N48 400 '+3%-3% Sold as set

B65813N0400A048
TDK
1: ¥1,325.5
939In Stock

Mfr. Part #
B65813N0400A048

Mouser Part #
871-B65813N0400A048

TDK

Ferrite Cores & Accessories RM 10 N48 400 '+3%-3% Sold as set

Learn More

Datasheet

939In Stock

¥1,325.5

¥920.2

¥735.8

¥674.4

View

Min.: 1
Mult.: 1

RM10

Ferrite Cores

Gapped

RM Core

RM 10

400 nH

3 %

N48

Blister Pack

Ferrite Cores & Accessories WAS-RM10-2 MAKROFOL KL3

B65814B2005X000
TDK
1: ¥147.8
4,845In Stock
19,200On Order

Mfr. Part #
B65814B2005X000

Mouser Part #
871-B65814B2005X000

TDK

Ferrite Cores & Accessories WAS-RM10-2 MAKROFOL KL3

Learn More

Datasheet

4,845In Stock

19,200On Order

¥147.8

¥103

¥88.5

¥78.6

View

Min.: 1
Mult.: 1

RM10

Hardware & Accessories

Ungapped

RM Core

RM 10

Insulating Washer

Polycarbonate

Bulk

Ferrite Cores & Accessories Clamp RM10

B65814B2203X000
TDK
400: ¥21.3
97,600In Stock

Mfr. Part #
B65814B2203X000

Mouser Part #
871-B65814B2203X000

TDK

Ferrite Cores & Accessories Clamp RM10

Learn More

Datasheet

97,600In Stock

¥21.3

¥18.6

¥16.4

Min.: 400
Mult.: 400

RM10

Hardware & Accessories

Ungapped

RM Core

RM 10

Clamp with Ground Terminal

Stainless Spring Steel

Bulk

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