Ferrite Cores & Accessories

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Ferrite Cores & Accessories

TDK Ferrite Cores and Accessories feature polycrystal, sintered material construction with high electrical resistivity and distributed air gaps. These ferrites are ideal for transportation equipment and medical devices. Ferrite cores include E core, ETD core, PM core, U core, PS core, RM core, EFD core, and more. A wide variety of accessories is also available.

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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 RM6/I-N49 '+30%-20% Sold as set B65807J0000R049 TDK 1: $2.15 12,049In Stock	Mfr. Part No. B65807J0000R049 Mouser Part No 871-B65807J0000R049	TDK	Ferrite Cores & Accessories RM6/I-N49 '+30%-20% Sold as set Learn More about TDK ferrite cores	Datasheet	12,049In Stock	$2.15 $1.84 $1.73 $1.64 View $1.53 $1.46 $1.42	Min.: 1 Mult.: 1	RM6	Ferrite Cores	Ungapped	RM Core	RM 6	1.7 uH	- 20 %, + 30 %			N49		Blister Pack
Ferrite Cores & Accessories R87/54.3/13.5 T37 toroid B64290L0730X037 TDK 1: $53.16 63In Stock	Mfr. Part No. B64290L0730X037 Mouser Part No 871-B64290L0730X037	TDK	Ferrite Cores & Accessories R87/54.3/13.5 T37 toroid Learn More about TDK ferrite cores	Datasheet	63In Stock	$53.16 $38.05 $35.47	Min.: 1 Mult.: 1	TX87/54.3/13.5	Toroids	Ungapped			7 uH				T37		Bulk
Ferrite Cores & Accessories RM5 N48 125 +2% -2% Sold as set B65805N0125G048 TDK 1: $4.49 1,440In Stock	Mfr. Part No. B65805N0125G048 Mouser Part No 871-B65805N0125G048	TDK	Ferrite Cores & Accessories RM5 N48 125 +2% -2% Sold as set Learn More about TDK ferrite cores	Datasheet	1,440In Stock	$4.49 $3.08 $2.62 $2.36 View $2.15 $1.92	Min.: 1 Mult.: 1	RM5	Ferrite Cores	Gapped	RM Core	RM 5	125 nH	2 %			N48		Blister Pack
Ferrite Cores & Accessories P 22X13 N48 630 3% Sold as set B65661T0630A048 TDK 1: $10.37 436In Stock	Mfr. Part No. B65661T0630A048 Mouser Part No 871-B65661T0630A048	TDK	Ferrite Cores & Accessories P 22X13 N48 630 3% Sold as set Learn More about TDK ferrite cores		436In Stock	$10.37 $7.36 $5.83 $5.48 View $5.17 $5.16 $4.66 Quote	Min.: 1 Mult.: 1	P22/13	Ferrite Cores	Gapped	P Core	22 x 13	630 nH	3 %			N48		Bulk
Ferrite Cores & Accessories 70X14.5 B65945A0000X022 TDK 1: $50.01 78In Stock 240On Order	Mfr. Part No. B65945A0000X022 Mouser Part No 871-B65945A0000X022	TDK	Ferrite Cores & Accessories 70X14.5 Learn More about TDK ferrite cores	Datasheet	78In Stock 240On Order On Order Ship Dates Mfr. No: B65945A0000X022 Stock: 78 Can Dispatch Immediately On Order: 160 Expected 02/11/2026 80 Expected 11/01/2027 Factory Lead Time: 7 Weeks	$50.01 $36.69 $32.97	Min.: 1 Mult.: 1	PCH70/14.5	Ferrite Cores	Ungapped	P Core Half	P 70 x 14.5					N22		Bulk
Ferrite Cores & Accessories 6.3 X 3.8 X 2.5 TOROID B64290P0037X001 TDK 1: $1.87 2,938In Stock	Mfr. Part No. B64290P0037X001 Mouser Part No 871-B64290P0037X001	TDK	Ferrite Cores & Accessories 6.3 X 3.8 X 2.5 TOROID Learn More about TDK infineon powertrain	Datasheet	2,938In Stock	$1.87 $1.23 $1.08 $0.968 View $0.857 $0.724 $0.622 $0.621 $0.619	Min.: 1 Mult.: 1	TC6.3/3.8/2.5	Toroids	Ungapped							K1		Bulk
Ferrite Cores & Accessories P 11X7 T387000 +40% -30% Sold as set B65531W0000Y038 TDK 1: $3.40 2,415In Stock	Mfr. Part No. B65531W0000Y038 Mouser Part No 871-B65531W0000Y038	TDK	Ferrite Cores & Accessories P 11X7 T387000 +40% -30% Sold as set Learn More about TDK ferrite cores	Datasheet	2,415In Stock	$3.40 $2.35 $2.01 $1.77 View $1.55 $1.38 $1.31 $1.29 $1.28	Min.: 1 Mult.: 1	P11/7	Ferrite Cores	Ungapped	P Core	11 x 7	7 uH	- 30 %, + 40 %			T38		Bulk
Ferrite Cores & Accessories P 14X8 N48 400 +3%-3% Sold as set B65541T0400A048 TDK 1: $4.54 1,471In Stock	Mfr. Part No. B65541T0400A048 Mouser Part No 871-B65541T0400A048	TDK	Ferrite Cores & Accessories P 14X8 N48 400 +3%-3% Sold as set Learn More about TDK ferrite cores	Datasheet	1,471In Stock	$4.54 $3.15 $2.71 $2.40 View $2.08 $1.81 $1.80 $1.78	Min.: 1 Mult.: 1	P14/8	Ferrite Cores	Gapped	P Core	14 x 8	400 nH	3 %			N48		Bulk
Ferrite Cores & Accessories P 36X22 N48 630 + 3%- 3% Sold as set B65611T0630A048 TDK 1: $13.99 360In Stock	Mfr. Part No. B65611T0630A048 Mouser Part No 871-B65611T0630A048	TDK	Ferrite Cores & Accessories P 36X22 N48 630 + 3%- 3% Sold as set Learn More about TDK ferrite cores	Datasheet	360In Stock	$13.99 $9.51 $7.92 $7.24 View $6.99 Quote	Min.: 1 Mult.: 1	P36/22	Ferrite Cores	Gapped	P Core	36 x 22	630 nH	3 %			N48		Bulk
Ferrite Cores & Accessories P 22X13 N30 8300 +30%-20% Sold as set B65661W0000R030 TDK 1: $5.25 1,232In Stock	Mfr. Part No. B65661W0000R030 Mouser Part No 871-B65661W0000R030	TDK	Ferrite Cores & Accessories P 22X13 N30 8300 +30%-20% Sold as set Learn More about TDK ferrite cores	Datasheet	1,232In Stock	$5.25 $3.61 $3.08 $2.70 View $2.41 $2.29 $2.28 $2.18	Min.: 1 Mult.: 1	P22/13	Ferrite Cores	Ungapped	P Core	P 22 x 13	8.3 uH	- 20 %, + 30 %			N30		Bulk
Ferrite Cores & Accessories P 22X13 T3816000 +40%-30% Sold as set B65661W0000Y038 TDK 1: $6.61 1,270In Stock	Mfr. Part No. B65661W0000Y038 Mouser Part No 871-B65661W0000Y038	TDK	Ferrite Cores & Accessories P 22X13 T3816000 +40%-30% Sold as set Learn More about TDK ferrite cores	Datasheet	1,270In Stock	$6.61 $4.61 $3.71 $3.40 View $3.03 $2.90 $2.89	Min.: 1 Mult.: 1	P22/13	Ferrite Cores	Ungapped	P Core	P 22 x 13	16 uH	- 30 %, + 40 %			T38		Bulk
Ferrite Cores & Accessories Coil former RM4lp SMD Vectra E130i B65804B6010T1 TDK 1: $2.32 2,286In Stock	Mfr. Part No. B65804B6010T1 Mouser Part No 871-B65804B6010T1	TDK	Ferrite Cores & Accessories Coil former RM4lp SMD Vectra E130i Learn More about TDK ferrite cores	Datasheet	2,286In Stock	$2.32 $2.10 $1.99 $1.88 View $1.77 $1.65 $1.58 $1.54 $1.47	Min.: 1 Mult.: 1	B65804B	Hardware & Accessories	Ungapped	RM Core	RM 4				10 Pin		J Hook	Tray
Ferrite Cores & Accessories RM6 N48 400 +3%-3% Sold as set B65807J0400A048 TDK 1: $3.83 2,176In Stock	Mfr. Part No. B65807J0400A048 Mouser Part No 871-B65807J0400A048	TDK	Ferrite Cores & Accessories RM6 N48 400 +3%-3% Sold as set Learn More about TDK ferrite cores	Datasheet	2,176In Stock	$3.83 $2.63 $2.23 $1.96 View $1.70 $1.45 $1.44	Min.: 1 Mult.: 1	RM6	Ferrite Cores	Gapped	RM Core	RM 6	400 nH	3 %			N48		Blister Pack
Ferrite Cores & Accessories RM10/I-N49 '+30%-20% Sold as set B65813J0000R049 TDK 1: $5.71 728In Stock	Mfr. Part No. B65813J0000R049 Mouser Part No 871-B65813J0000R049	TDK	Ferrite Cores & Accessories RM10/I-N49 '+30%-20% Sold as set Learn More about TDK ferrite cores	Datasheet	728In Stock	$5.71 $3.93 $3.33 $2.93 View $2.58 $2.57 $2.46	Min.: 1 Mult.: 1	RM10	Ferrite Cores	Ungapped	RM Core	RM 10	2.9 uH	- 20 %, + 30 %			N49		Blister Pack
Ferrite Cores & Accessories Coil former RM5 SMD Vectra E130i B65822F1008T2 TDK 1: $1.93 1,995In Stock	Mfr. Part No. B65822F1008T2 Mouser Part No 871-B65822F1008T2	TDK	Ferrite Cores & Accessories Coil former RM5 SMD Vectra E130i Learn More about TDK ferrite cores	Datasheet	1,995In Stock	$1.93 $1.75 $1.62 $1.44 View $1.26 $1.12 $1.08	Min.: 1 Mult.: 1	B65822F	Hardware & Accessories	Ungapped	RM Core	RM 5				8 Pin		Gullwing	Tray
Ferrite Cores & Accessories CLAMP EI 32 B66288F2204X000 TDK 1: $0.29 19,254In Stock	Mfr. Part No. B66288F2204X000 Mouser Part No 871-B66288F2204X000	TDK	Ferrite Cores & Accessories CLAMP EI 32 Learn More about TDK ferrite cores	Datasheet	19,254In Stock	$0.29 $0.26 $0.251 $0.244 View $0.233 $0.214 $0.191 $0.173 $0.151	Min.: 1 Mult.: 1	ELP32/6/20	Hardware & Accessories	Ungapped	ELP Core	32 x 3 x 20			Clamp Recess			Pin	Bulk
Ferrite Cores & Accessories RM6 N48 250 +3%-3% Sold as set B65807C0250A048 TDK 1: $3.77 1,975In Stock	Mfr. Part No. B65807C0250A048 Mouser Part No 871-B65807C0250A048	TDK	Ferrite Cores & Accessories RM6 N48 250 +3%-3% Sold as set Learn More about TDK ferrite cores	Datasheet	1,975In Stock	$3.77 $2.59 $2.19 $1.92 View $1.67 $1.60 $1.52 $1.48 $1.44	Min.: 1 Mult.: 1	RM6	Ferrite Cores	Gapped	RM Core	RM 6	250 nH	3 %			N48		Blister Pack
Ferrite Cores & Accessories RM6 N87 Sold as set B65807J0160A087 TDK 1: $3.63 934In Stock	Mfr. Part No. B65807J0160A087 Mouser Part No 871-B65807J0160A087	TDK	Ferrite Cores & Accessories RM6 N87 Sold as set Learn More about TDK ferrite cores	Datasheet	934In Stock	$3.63 $2.45 $1.94 $1.70 View $1.51 $1.45	Min.: 1 Mult.: 1	RM6	Ferrite Cores	Gapped	RM Core	RM 6	160 nH	3 %			N87		Blister Pack
Ferrite Cores & Accessories EP7-N87 Sold as set B65839A0000R087 TDK 1: $1.28 4,242In Stock	Mfr. Part No. B65839A0000R087 Mouser Part No 871-B65839A0000R087	TDK	Ferrite Cores & Accessories EP7-N87 Sold as set Learn More about TDK epcos ep transformers	Datasheet	4,242In Stock	$1.28 $0.889 $0.763 $0.676 View $0.595 $0.508 $0.50	Min.: 1 Mult.: 1	EP7	Ferrite Cores	Ungapped	EP Core	EP 7	1.1 uH	- 20 %, + 30 %			N87		Bulk
Ferrite Cores & Accessories P3.3/2.6-K1 +40%-30% Sold as set B65491C0000Y001 TDK 1: $6.89 1,390In Stock	Mfr. Part No. B65491C0000Y001 Mouser Part No 871-B65491C0000Y001	TDK	Ferrite Cores & Accessories P3.3/2.6-K1 +40%-30% Sold as set Learn More about TDK ferrite cores	Datasheet	1,390In Stock	$6.89 $4.78 $3.83 $3.51 View $3.11 $3.00 $2.99 $2.95	Min.: 1 Mult.: 1	P3.3/2.6	Ferrite Cores	Ungapped	P Core	3.3 x 2.6	25 nH	- 30 %, + 40 %			K1		Bulk
Ferrite Cores & Accessories RM6 N87 3000 '+30%-20% Sold as set B65807P0000R087 TDK 1: $3.73 2,491In Stock	Mfr. Part No. B65807P0000R087 Mouser Part No 871-B65807P0000R087	TDK	Ferrite Cores & Accessories RM6 N87 3000 '+30%-20% Sold as set Learn More about TDK ferrite cores	Datasheet	2,491In Stock	$3.73 $2.56 $2.17 $1.90 View $1.65 $1.48 $1.46 $1.42	Min.: 1 Mult.: 1	RM6	Ferrite Cores	Ungapped	RM LP Core	RM 6	3 uH	- 20 %, + 30 %			N87		Blister Pack
Ferrite Cores & Accessories RM8 N48 400 +3%-3% 2 piece set Sold as set B65811F0400A048 TDK 1: $6.92 493In Stock	Mfr. Part No. B65811F0400A048 Mouser Part No 871-B65811F0400A048	TDK	Ferrite Cores & Accessories RM8 N48 400 +3%-3% 2 piece set Sold as set Learn More about TDK ferrite cores	Datasheet	493In Stock	$6.92 $4.80 $3.84 $3.52 View $3.44 $3.43 $3.27	Min.: 1 Mult.: 1	RM8	Ferrite Cores	Gapped	RM Core	RM 8	400 nH	3 %			N48		Blister Pack
Ferrite Cores & Accessories RM8 N87 4100 '+30%-20% Sold as set B65811P0000R087 TDK 1: $5.13 1,663In Stock	Mfr. Part No. B65811P0000R087 Mouser Part No 871-B65811P0000R087	TDK	Ferrite Cores & Accessories RM8 N87 4100 '+30%-20% Sold as set Learn More about TDK ferrite cores	Datasheet	1,663In Stock	$5.13 $3.50 $2.97 $2.59 View $1.99 $1.98 $1.83	Min.: 1 Mult.: 1	RM8/LP	Ferrite Cores	Ungapped	RM LP Core	RM 8	4.1 uH	- 20 %, + 30 %			N87		Blister Pack
Ferrite Cores & Accessories RM10/I-T38 '+40%-30% Sold as set B65813J0000Y038 TDK 1: $6.39 693In Stock	Mfr. Part No. B65813J0000Y038 Mouser Part No 871-B65813J0000Y038	TDK	Ferrite Cores & Accessories RM10/I-T38 '+40%-30% Sold as set Learn More about TDK ferrite cores	Datasheet	693In Stock	$6.39 $4.43 $3.55 $3.25 View $2.78 $2.77 $2.68	Min.: 1 Mult.: 1	RM10	Ferrite Cores	Ungapped	RM Core	RM 10	16 uH	- 30 %, + 40 %			T38		Blister Pack
Ferrite Cores & Accessories RM5/I-N49 +30%-20% Sold as set B65805J0000R049 TDK 1: $4.05 1,955In Stock	Mfr. Part No. B65805J0000R049 Mouser Part No 871-B65805J0000R049	TDK	Ferrite Cores & Accessories RM5/I-N49 +30%-20% Sold as set Learn More about TDK ferrite cores	Datasheet	1,955In Stock	$4.05 $2.73 $2.39 $2.10 View $1.84 $1.70 $1.69	Min.: 1 Mult.: 1	RM5	Ferrite Cores	Ungapped	RM Core	RM 5	1.3 uH	- 20 %, + 30 %			N49		Blister Pack