Ferrite Cores & Accessories

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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 (GBP) Filter the results in the table by unit price based on your quantity.	Qty.	Series	Product	Type	Core	Core Size	Inductance	Tolerance	Accessory Type	Core Material	Packaging
Ferrite Cores & Accessories RM6/I-N49 '+30%-20% Sold as set B65807J0000R049 TDK 1: £2.09 12,039In 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	12,039In Stock	£2.09 £1.61 £1.45 £1.33 View £1.22 £1.09	Min.: 1 Mult.: 1	RM6	Ferrite Cores	Ungapped	RM Core	RM 6	1.7 uH	- 20 %, + 30 %		N49	Blister Pack
Ferrite Cores & Accessories P 22X13 N48 630 3% Sold as set B65661T0630A048 TDK 1: £8.42 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	£8.42 £5.55 £4.64 £4.11 View £3.88 £3.68	Min.: 1 Mult.: 1	P22/13	Ferrite Cores	Gapped	P Core	22 x 13	630 nH	3 %		N48	Bulk
Ferrite Cores & Accessories R87/54.3/13.5 T37 toroid B64290L0730X037 TDK 1: £39.91 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	£39.91 £28.56 £26.63	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: £3.61 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	£3.61 £2.47 £2.10 £1.90 View £1.62 £1.44	Min.: 1 Mult.: 1	RM5	Ferrite Cores	Gapped	RM Core	RM 5	125 nH	2 %		N48	Blister Pack
Ferrite Cores & Accessories E13/7/4 N87 850 +30% -20% B66305GX187 TDK 1: £0.548 17,300In Stock	Mfr. Part No. B66305GX187 Mouser Part No 871-B66305GX187	TDK	Ferrite Cores & Accessories E13/7/4 N87 850 +30% -20% Learn More about TDK ferrite cores	Datasheet	17,300In Stock	£0.548 £0.382 £0.335 £0.299 View £0.265 £0.223 £0.195 £0.185 £0.162	Min.: 1 Mult.: 1	B66305G	Ferrite Cores	Ungapped	E Core	13 x 7 x 4 (EF 12.6)	850 nH	- 20 %, + 30 %		N87	Bulk
Ferrite Cores & Accessories EFD15/8/5 N97OL B66413G0000X197 TDK 1: £1.10 8,580In Stock 26,880On Order	Mfr. Part No. B66413G0000X197 Mouser Part No 871-B66413GX197	TDK	Ferrite Cores & Accessories EFD15/8/5 N97OL Learn More about TDK ferrite cores	Datasheet	8,580In Stock 26,880On Order On Order Ship Dates Mfr. No: B66413G0000X197 Stock: 8,580 Can Dispatch Immediately On Order: 11,520 Expected 04/12/2026 15,360 Expected 08/12/2026 Factory Lead Time: 7 Weeks	£1.10 £0.766 £0.653 £0.577 View £0.518 £0.425 £0.403 £0.35 £0.349	Min.: 1 Mult.: 1	EFD15/8/5	Ferrite Cores	Ungapped	EFD Core	15 x 8 x 5	820 nH	- 20 %, + 30 %		N97	Bulk
Ferrite Cores & Accessories 3.6/2.1/2.5 DOUBLE-APERTURE CORE B62152A0008X030 TDK 1: £0.458 57,898In Stock	Mfr. Part No. B62152A0008X030 Mouser Part No 871-B62152A0008X030	TDK	Ferrite Cores & Accessories 3.6/2.1/2.5 DOUBLE-APERTURE CORE Learn More about TDK ferrite cores	Datasheet	57,898In Stock	£0.458 £0.32 £0.277 £0.247 View £0.219 £0.185 £0.162 £0.141 £0.129	Min.: 1 Mult.: 1	MHB2-2.5/3.6/2.1	Multi-Hole Cores	Ungapped			3.1 uH			N30	Bulk
Ferrite Cores & Accessories 4.0 X 2.4 X 1.6 TOROID B64290P0036X038 TDK 1: £0.39 17,627In Stock	Mfr. Part No. B64290P0036X038 Mouser Part No 871-B64290P0036X038	TDK	Ferrite Cores & Accessories 4.0 X 2.4 X 1.6 TOROID Learn More about TDK infineon powertrain	Datasheet	17,627In Stock	£0.39 £0.265 £0.239 £0.213 View £0.189 £0.161 £0.141 £0.122 £0.109	Min.: 1 Mult.: 1	TC4.0/2.4/1.6	Toroids	Ungapped			1.63 uH			T38	Bulk
Ferrite Cores & Accessories ER 11/5 N87 Sold as set B65525J0160A087 TDK 1: £1.41 6,531In Stock	Mfr. Part No. B65525J0160A087 Mouser Part No 871-B65525J0160A087	TDK	Ferrite Cores & Accessories ER 11/5 N87 Sold as set Learn More about TDK ferrite cores	Datasheet	6,531In Stock	£1.41 £0.943 £0.818 £0.726 View £0.644 £0.539 £0.478	Min.: 1 Mult.: 1	ER11/2.5/6	Ferrite Cores	Gapped	ER Core	11 x 5	160 nH	3 %		N87	Bulk
Ferrite Cores & Accessories P22/13-N30 +30%-20% Sold as set B65661D0000R030 TDK 1: £4.34 1,378In Stock	Mfr. Part No. B65661D0000R030 Mouser Part No 871-B65661D0000R030	TDK	Ferrite Cores & Accessories P22/13-N30 +30%-20% Sold as set Learn More about TDK ferrite cores	Datasheet	1,378In Stock	£4.34 £2.95 £2.50 £2.17 View £1.89 £1.78	Min.: 1 Mult.: 1	P22/13	Ferrite Cores	Ungapped	P Core	22 x 13	7 uH	- 20 %, + 30 %		N30	Bulk
Ferrite Cores & Accessories RM4 T385000 +40%-30% Sold as set B65803P0000Y038 TDK 1: £3.45 6,335In Stock	Mfr. Part No. B65803P0000Y038 Mouser Part No 871-B65803P0000Y038	TDK	Ferrite Cores & Accessories RM4 T385000 +40%-30% Sold as set Learn More about TDK ferrite cores	Datasheet	6,335In Stock	Cut Tape £3.45 £2.36 £2.00 £1.75 View Reel £1.36 £1.52 £1.36 £1.36	Min.: 1 Mult.: 1 : 800	RM4/LP	Ferrite Cores	Ungapped	RM LP Core	RM 4	5 uH	- 30 %, + 40 %		T38	Reel, Cut Tape
Ferrite Cores & Accessories RM 5 N48315 + 3%- 3% Sold as set B65805C0315A048 TDK 1: £2.57 2,149In Stock	Mfr. Part No. B65805C0315A048 Mouser Part No 871-B65805C0315A048	TDK	Ferrite Cores & Accessories RM 5 N48315 + 3%- 3% Sold as set Learn More about TDK ferrite cores	Datasheet	2,149In Stock	£2.57 £1.75 £1.55 £1.38 View £1.22 £1.04	Min.: 1 Mult.: 1	RM5	Ferrite Cores	Gapped	RM Core	RM 5	315 nH	3 %		N48	Blister Pack
Ferrite Cores & Accessories RM5 N87 160 +3%-3% Sold as set B65805J0160A087 TDK 1: £2.84 1,428In Stock	Mfr. Part No. B65805J0160A087 Mouser Part No 871-B65805J0160A087	TDK	Ferrite Cores & Accessories RM5 N87 160 +3%-3% Sold as set Learn More about TDK ferrite cores	Datasheet	1,428In Stock	£2.84 £1.96 £1.66 £1.46 View £1.27 £1.08	Min.: 1 Mult.: 1	RM5	Ferrite Cores	Gapped	RM Core	RM 5	160 nH	3 %		N87	Blister Pack
Ferrite Cores & Accessories RM6/I-N41 '+30%-20% Sold as set B65807J0000R041 TDK 1: £2.69 2,796In Stock	Mfr. Part No. B65807J0000R041 Mouser Part No 871-B65807J0000R041	TDK	Ferrite Cores & Accessories RM6/I-N41 '+30%-20% Sold as set Learn More about TDK ferrite cores	Datasheet	2,796In Stock	£2.69 £1.85 £1.57 £1.38 View £1.20 £1.02	Min.: 1 Mult.: 1	RM6	Ferrite Cores	Ungapped	RM Core	RM 6	3.1 uH	- 20 %, + 30 %		N41	Blister Pack
Ferrite Cores & Accessories RM6 M33 63 +3%-3% Sold as set B65807N0063A033 TDK 1: £4.10 1,989In Stock	Mfr. Part No. B65807N0063A033 Mouser Part No 871-B65807N0063A033	TDK	Ferrite Cores & Accessories RM6 M33 63 +3%-3% Sold as set Learn More about TDK ferrite cores	Datasheet	1,989In Stock	£4.10 £2.77 £2.37 £2.07 View £1.80 £1.68	Min.: 1 Mult.: 1	RM6	Ferrite Cores	Gapped	RM Core	RM 6	63 nH	3 %		M33	Blister Pack
Ferrite Cores & Accessories EP13-N87 '+30%-20% Sold as set B65843A0000R087 TDK 1: £1.87 2,922In Stock	Mfr. Part No. B65843A0000R087 Mouser Part No 871-B65843A0000R087	TDK	Ferrite Cores & Accessories EP13-N87 '+30%-20% Sold as set Learn More about TDK epcos ep transformers	Datasheet	2,922In Stock	£1.87 £1.30 £1.10 £0.978 View £0.856 £0.703 £0.666	Min.: 1 Mult.: 1	EP13	Ferrite Cores	Ungapped	EP Core	EP 13	1.6 uH	- 20 %, + 30 %		N87	Tray
Ferrite Cores & Accessories E13/7/4 N27 LP 0.04MM B66305G0040X127 TDK 1: £0.653 23,842In Stock	Mfr. Part No. B66305G0040X127 Mouser Part No 871-B66305G0040X127	TDK	Ferrite Cores & Accessories E13/7/4 N27 LP 0.04MM Learn More about TDK ferrite cores	Datasheet	23,842In Stock	£0.653 £0.455 £0.392 £0.348 View £0.308 £0.26 £0.226 £0.194	Min.: 1 Mult.: 1	E13/7/4	Ferrite Cores	Gapped	E Core	13 x 7 x 4 (EF 12.6)	250 nH		Core	N27	Tray
Ferrite Cores & Accessories 6.3 X 3.8 X 2.5 TOROID B64290P0037X001 TDK 1: £1.42 2,828In 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	2,828In Stock	£1.42 £0.995 £0.849 £0.746 View £0.655 £0.544 £0.484	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: £2.56 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	£2.56 £1.76 £1.51 £1.33 View £1.16 £1.04 £0.986 £0.969 £0.96	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: £3.56 1,441In 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	1,441In Stock	£3.56 £2.44 £2.07 £1.80 View £1.56 £1.42	Min.: 1 Mult.: 1	P14/8	Ferrite Cores	Gapped	P Core	14 x 8	400 nH	3 %		N48	Bulk
Ferrite Cores & Accessories P 22X13 N30 8300 +30%-20% Sold as set B65661W0000R030 TDK 1: £4.34 1,132In 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	1,132In Stock	£4.34 £2.95 £2.50 £2.17 View £1.89 £1.78	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: £5.32 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	£5.32 £3.61 £3.04 £2.65 View £2.28 £2.26	Min.: 1 Mult.: 1	P22/13	Ferrite Cores	Ungapped	P Core	P 22 x 13	16 uH	- 30 %, + 40 %		T38	Bulk
Ferrite Cores & Accessories P 30X19 N30 11500 +30%-20% Sold as set B65701W0000R030 TDK 1: £7.32 328In Stock	Mfr. Part No. B65701W0000R030 Mouser Part No 871-B65701W0000R030	TDK	Ferrite Cores & Accessories P 30X19 N30 11500 +30%-20% Sold as set Learn More about TDK ferrite cores	Datasheet	328In Stock	£7.32 £4.92 £4.12 £3.57 £3.29	Min.: 1 Mult.: 1	P30/19	Ferrite Cores	Ungapped	P Core	P 30 x 19	11.5 uH	- 20 %, + 30 %		N30	Bulk
Ferrite Cores & Accessories PM 87X70 N87 12000 +30%-20% Sold as set B65713A0000R087 TDK 1: £41.27 94In Stock	Mfr. Part No. B65713A0000R087 Mouser Part No 871-B65713A0000R087	TDK	Ferrite Cores & Accessories PM 87X70 N87 12000 +30%-20% Sold as set Learn More about TDK ferrite cores	Datasheet	94In Stock	£41.27 £29.63	Min.: 1 Mult.: 1	PM87/70	Ferrite Cores	Ungapped	PM Core	PM 87 x 70	12 uH	- 20 %, + 30 %		N87	Bulk
Ferrite Cores & Accessories RM8 N48 630 +5%-5% Sold as set B65811D0630J048 TDK 1: £4.83 1,656In Stock	Mfr. Part No. B65811D0630J048 Mouser Part No 871-B65811D0630J048	TDK	Ferrite Cores & Accessories RM8 N48 630 +5%-5% Sold as set Learn More about TDK ferrite cores	Datasheet	1,656In Stock	£4.83 £3.27 £2.78 £2.41 £2.03	Min.: 1 Mult.: 1	RM8	Ferrite Cores	Gapped	RM Core	RM 8	630 nH	5 %		N48	Blister Pack