.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; }

Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	Series	Product	Type	Core	Core Size	Inductance	Tolerance	Accessory Type	Number of Pins	Core Material	Termination Style	Packaging
Ferrite Cores & Accessories 50X30X20 N27 TOROID B64290L0082X027 TDK 1: $17.55 208In Stock 120Expected 2027/01/11	Mfr. Part No. B64290L0082X027 Mouser Part No 871-B64290L0082X027	TDK	Ferrite Cores & Accessories 50X30X20 N27 TOROID Learn More about TDK infineon powertrain	Datasheet	208In Stock 120Expected 2027/01/11	$17.55 $12.70 $10.83 $10.26 View $9.62 $9.56 Quote	Min.: 1 Mult.: 1	TX50/30/20	Toroids	Ungapped							N27		Bulk
Ferrite Cores & Accessories COIL FORMER SUMIKON PM 9630 B66422W1010D1 TDK 1: $2.27 4,225In Stock 3,900Expected 2027/01/21	Mfr. Part No. B66422W1010D1 Mouser Part No 871-B66422W1010D1	TDK	Ferrite Cores & Accessories COIL FORMER SUMIKON PM 9630 Learn More about TDK ferrite cores	Datasheet	4,225In Stock 3,900Expected 2027/01/21	$2.27 $1.57 $1.34 $1.19 View $1.04 $0.918 $0.868	Min.: 1 Mult.: 1	B66422W	Hardware & Accessories	Ungapped	EFD Core	25 x 13 x 9			Coil Former with Solder Pins	10 Pin		Pin	Tray
Ferrite Cores & Accessories PQ 40/40 N87 4300 Tol +30-20% Sold as set B65883A0000R087 TDK 1: $11.77 269In Stock 270Expected 2026/10/29	Mfr. Part No. B65883A0000R087 Mouser Part No 871-B65883A0000R087	TDK	Ferrite Cores & Accessories PQ 40/40 N87 4300 Tol +30-20% Sold as set Learn More about TDK ferrite cores	Datasheet	269In Stock 270Expected 2026/10/29	$11.77 $7.89 $6.28 Reel $6.28 $5.97 View $5.63 $5.35	Min.: 1 Mult.: 1 : 45	PQ40/40	Ferrite Cores	Ungapped	PQ Core	40 x 40	4.3 uH	- 20 %, + 30 %			N87		Ammo Pack
Ferrite Cores & Accessories 77 3PC Bobbin Imp 55 nH 10% TOL 9677142009 Fair-Rite 1: $1.41 2,246In Stock	Mfr. Part No. 9677142009 Mouser Part No 623-9677142009	Fair-Rite	Ferrite Cores & Accessories 77 3PC Bobbin Imp 55 nH 10% TOL Learn More about Fair-Rite fair rite 43 bobbin grounds		2,246In Stock	$1.41 $1.24 $1.15 $1.08 View $0.933 $0.743 $0.742 $0.691	Min.: 1 Mult.: 1	96	Hardware & Accessories	Coil Former (Bobbins)			55 nH	10 %			77		Bulk
Ferrite Cores & Accessories 1880n 25% Mn-Zn PC95 Ferrite Core PC95ER14.5/6-Z TDK 1: $1.28 3,562In Stock	Mfr. Part No. PC95ER14.5/6-Z Mouser Part No 810-PC95ER14.5/6-Z	TDK	Ferrite Cores & Accessories 1880n 25% Mn-Zn PC95 Ferrite Core Learn More about TDK planar ferrite cores switching power supplies	Datasheet	3,562In Stock	$1.28 $0.883 $0.762 $0.69 View $0.608 $0.501 $0.465 $0.454	Min.: 1 Mult.: 1	Planar	Ferrite Bead Cores										Tray
Ferrite Cores & Accessories 41.8/26.2/12.5T37 TOROID B64290L0022X037 TDK 1: $8.13 551In Stock	Mfr. Part No. B64290L0022X037 Mouser Part No 871-B64290L0022X037	TDK	Ferrite Cores & Accessories 41.8/26.2/12.5T37 TOROID Learn More about TDK infineon powertrain	Datasheet	551In Stock	$8.13 $6.06 $4.68 $4.38 $4.02	Min.: 1 Mult.: 1	TX42/26/13	Toroids	Ungapped			7 uH				T37		Bulk
Ferrite Cores & Accessories 10/6/4 N49 TOROID B64290L0038X049 TDK 1: $0.68 8,872In Stock	Mfr. Part No. B64290L0038X049 Mouser Part No 871-B64290L0038X049	TDK	Ferrite Cores & Accessories 10/6/4 N49 TOROID Learn More about TDK infineon powertrain	Datasheet	8,872In Stock	Cut Tape $0.68 $0.468 $0.404 $0.359 View Reel $0.195 $0.319 $0.271 $0.237 $0.226 $0.195	Min.: 1 Mult.: 1 : 3,000	TX10/6/4	Toroids	Ungapped			610 nH				N49		Reel, Cut Tape
Ferrite Cores & Accessories 12.5X7.5X5 N27 TOROID B64290L0044X027 TDK 1: $0.53 8,135In Stock	Mfr. Part No. B64290L0044X027 Mouser Part No 871-B64290L0044X027	TDK	Ferrite Cores & Accessories 12.5X7.5X5 N27 TOROID Learn More about TDK infineon powertrain	Datasheet	8,135In Stock	$0.53 $0.374 $0.354 Reel $0.354	Min.: 1 Mult.: 1 : 1,500	TX12.5/7.5/5	Toroids	Ungapped							N27		Ammo Pack
Ferrite Cores & Accessories 12.7X7.9X6.35 T38 TOROID B64290L0742X038 TDK 1: $0.94 3,443In Stock	Mfr. Part No. B64290L0742X038 Mouser Part No 871-B64290L0742X038	TDK	Ferrite Cores & Accessories 12.7X7.9X6.35 T38 TOROID Learn More about TDK infineon powertrain	Datasheet	3,443In Stock	$0.94 $0.659 $0.568 $0.504 View Reel $0.381 $0.445 $0.381 $0.381	Min.: 1 Mult.: 1 : 1,500	TX13/7.9/6.4	Toroids	Ungapped			6.03 uH				T38		Ammo Pack
Ferrite Cores & Accessories TOROID 10X6X4 N87 B64290L38X87 TDK 1: $0.34 22,206In Stock	Mfr. Part No. B64290L38X87 Mouser Part No 871-B64290L38X87	TDK	Ferrite Cores & Accessories TOROID 10X6X4 N87 Learn More about TDK infineon powertrain	Datasheet	22,206In Stock	$0.34 $0.24 $0.207 $0.185 View Reel $0.116 $0.165 $0.14 $0.123 $0.116 $0.116	Min.: 1 Mult.: 1 : 3,000	B64290L	Toroids	Ungapped			900 nH				N87		Ammo Pack
Ferrite Cores & Accessories R25.3/14.8/10 T65 toroid B64290L0618X065 TDK 1: $2.48 1,951In Stock	Mfr. Part No. B64290L0618X065 Mouser Part No 871-B64290L618X65	TDK	Ferrite Cores & Accessories R25.3/14.8/10 T65 toroid Learn More about TDK infineon powertrain	Datasheet	1,951In Stock	$2.48 $1.76 $1.48 $1.34 View Reel $1.01 $1.15 $1.01 $1.01	Min.: 1 Mult.: 1 : 500	TX25.3/14.8/10	Toroids	Ungapped							T65		Ammo Pack
Ferrite Cores & Accessories R140/103/25 N30 toroid B64290L0705X830 TDK 1: $164.48 16In Stock	Mfr. Part No. B64290L0705X830 Mouser Part No 871-B64290L705X830	TDK	Ferrite Cores & Accessories R140/103/25 N30 toroid Learn More about TDK infineon powertrain	Datasheet	16In Stock	$164.48 $127.80	Min.: 1 Mult.: 1	TX140/103/25		Ungapped							N30		Bulk
Ferrite Cores & Accessories P26/16-N48 +30%-20% Sold as set B65671D0000R048 TDK 1: $7.87 1,183In Stock	Mfr. Part No. B65671D0000R048 Mouser Part No 871-B65671D0000R048	TDK	Ferrite Cores & Accessories P26/16-N48 +30%-20% Sold as set Learn More about TDK ferrite cores	Datasheet	1,183In Stock	$7.87 $4.80 $4.04 $4.02	Min.: 1 Mult.: 1	P26/16	Ferrite Cores	Ungapped	P Core	P 26 x 16	4.9 uH	- 20 %, + 30 %			N48		Bulk
Ferrite Cores & Accessories P 26X16 N87 5500 +30%-20% Sold as set B65671W0000R087 TDK 1: $6.59 1,370In Stock	Mfr. Part No. B65671W0000R087 Mouser Part No 871-B65671W0000R087	TDK	Ferrite Cores & Accessories P 26X16 N87 5500 +30%-20% Sold as set Learn More about TDK ferrite cores	Datasheet	1,370In Stock	$6.59 $4.61 $3.68 $3.37 $2.99	Min.: 1 Mult.: 1	P26/16	Ferrite Cores	Ungapped	P Core	P 26 x 16	5.5 uH	- 20 %, + 30 %			N87		Bulk
Ferrite Cores & Accessories YOKE EF25 B66208A2003X000 TDK 1: $2.73 2,364In Stock	Mfr. Part No. B66208A2003X000 Mouser Part No 871-B66208A2003X000	TDK	Ferrite Cores & Accessories YOKE EF25 Learn More about TDK ferrite cores	Datasheet	2,364In Stock	$2.73 $2.48 $2.44	Min.: 1 Mult.: 1	E25/13/7	Hardware & Accessories	Ungapped	E Core	25 x 13 x 7 (EF 25)			Yoke				Bulk
Ferrite Cores & Accessories I18/2/10 N49 2100 +25% -25% B66283K0000X149 TDK 1: $2.33 1,784In Stock	Mfr. Part No. B66283K0000X149 Mouser Part No 871-B66283KX149	TDK	Ferrite Cores & Accessories I18/2/10 N49 2100 +25% -25% Learn More about TDK ferrite cores	Datasheet	1,784In Stock	$2.33 $1.60 $1.37 $1.21 $1.08	Min.: 1 Mult.: 1	I18/2/10	Ferrite Cores	Ungapped	I Core	18 x 2 x 10	2.1 uH	25 %	EILP 18 Core Set		N49		Bulk
Ferrite Cores & Accessories E16/8/5 N30 1400 +30% -20% B66307GX130 TDK 1: $0.911 8,870In Stock	Mfr. Part No. B66307GX130 Mouser Part No 871-B66307GX130	TDK	Ferrite Cores & Accessories E16/8/5 N30 1400 +30% -20% Learn More about TDK ferrite cores	Datasheet	8,870In Stock	$0.911 $0.608 $0.526 $0.468 View $0.414 $0.359 $0.313 $0.298 $0.291	Min.: 1 Mult.: 1	B66307G	Ferrite Cores	Ungapped	E Core	16 x 8 x 5 (EF 16)	1.4 uH	- 20 %, + 30 %			N30		Bulk
Ferrite Cores & Accessories E20/10/6 N87LP 0.250 MM B66311G0250X187 TDK 1: $1.22 18,502In Stock	Mfr. Part No. B66311G0250X187 Mouser Part No 871-B66311G0250X187	TDK	Ferrite Cores & Accessories E20/10/6 N87LP 0.250 MM Learn More about TDK ferrite cores	Datasheet	18,502In Stock	$1.22 $0.839 $0.723 $0.666 View $0.586 $0.476 $0.441 $0.419	Min.: 1 Mult.: 1	E20/10/6	Ferrite Cores	Gapped	E Core	20 x 10 x 6 (EF 20)	171 nH		Core		N87		Bulk
Ferrite Cores & Accessories E25/13/7 N87LP=1.0MM B66317G1000X187 TDK 1: $1.20 3,600In Stock	Mfr. Part No. B66317G1000X187 Mouser Part No 871-B66317G1000X187	TDK	Ferrite Cores & Accessories E25/13/7 N87LP=1.0MM Learn More about TDK ferrite cores	Datasheet	3,600In Stock	$1.20 $0.765 $0.676 $0.605 View $0.535 $0.458 $0.435 $0.402	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 ETD29/16/10 N87LP 0.5MM B66358G0500X187 TDK 1: $2.62 5,265In Stock	Mfr. Part No. B66358G0500X187 Mouser Part No 871-B66358G0500X187	TDK	Ferrite Cores & Accessories ETD29/16/10 N87LP 0.5MM Learn More about TDK ferrite cores	Datasheet	5,265In Stock	$2.62 $1.81 $1.55 $1.36 View $1.19 $0.949	Min.: 1 Mult.: 1	ETD29/16/10	Ferrite Cores	Gapped	ETD Core	29 x 16 x 10	201 nH				N87		Bulk
Ferrite Cores & Accessories E70/33/32-N95-DG100 B66371Q0100K195 TDK 1: $20.10 134In Stock	Mfr. Part No. B66371Q0100K195 Mouser Part No 871-B66371Q0100K195	TDK	Ferrite Cores & Accessories E70/33/32-N95-DG100 Learn More about TDK epcos distributed gapped cores	Datasheet	134In Stock	$20.10 $13.74 $11.37 $10.87	Min.: 1 Mult.: 1	E70/33/32											Tray
Ferrite Cores & Accessories 95 PQ Core PQ40/40 Ind 6500 nH 25% TOL 6695404121 Fair-Rite 1: $6.56 532In Stock	Mfr. Part No. 6695404121 Mouser Part No 623-6695404121	Fair-Rite	Ferrite Cores & Accessories 95 PQ Core PQ40/40 Ind 6500 nH 25% TOL Learn More about Fair-Rite fairrite pq cores		532In Stock	$6.56 $4.40 $3.64 $3.34 View $3.04 $2.97	Min.: 1 Mult.: 1	66	Ferrite Cores		PQ Core	40 x 40	5.85 uH	25 %			95		Bulk
Ferrite Cores & Accessories 43 Bobbin Ground For HF designs 9643001015 Fair-Rite 1: $1.66 1,998In Stock	Mfr. Part No. 9643001015 Mouser Part No 623-9643001015	Fair-Rite	Ferrite Cores & Accessories 43 Bobbin Ground For HF designs Learn More about Fair-Rite fair rite 43 bobbin grounds		1,998In Stock	$1.66 $1.47 $1.27 $1.12 View $0.98 $0.868 $0.811 $0.79	Min.: 1 Mult.: 1	96	Hardware & Accessories	Coil Former (Bobbins)			38 nH	10 %			43		Bulk
Ferrite Cores & Accessories 41.8/26.2/12.5N87 TOROID B64290L0022X087 TDK 1: $6.58 1,501In Stock	Mfr. Part No. B64290L0022X087 Mouser Part No 871-B64290L0022X087	TDK	Ferrite Cores & Accessories 41.8/26.2/12.5N87 TOROID Learn More about TDK infineon powertrain	Datasheet	1,501In Stock	$6.58 $4.56 $3.66 $3.35 View $2.99 $2.98	Min.: 1 Mult.: 1	TX42/26/13	Toroids	Ungapped			2.56 uH				N87		Bulk
Ferrite Cores & Accessories 16X9.6X6.3 T35 TOROID B64290L0045X035 TDK 1: $1.04 4,103In Stock	Mfr. Part No. B64290L0045X035 Mouser Part No 871-B64290L0045X035	TDK	Ferrite Cores & Accessories 16X9.6X6.3 T35 TOROID Learn More about TDK infineon powertrain	Datasheet	4,103In Stock	$1.04 $0.722 $0.621 $0.551 View Reel $0.39 $0.487 $0.409 $0.39 $0.39	Min.: 1 Mult.: 1 : 2,000	TX16/9.6/6.3	Toroids	Ungapped			3.87 uH				T35		Ammo Pack