Passive Components – Mouser United Kingdom

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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 (GBP) Filter the results in the table by unit price based on your quantity.	Qty.
Ferrite Cores & Accessories RM7 N87 3300 '+30%-20% Sold as set B65819P0000R087 TDK 1: £2.60 465In Stock	Mfr. Part No. B65819P0000R087 Mouser Part No 871-B65819P0000R087	TDK	Ferrite Cores & Accessories RM7 N87 3300 '+30%-20% Sold as set Learn More about TDK ferrite cores	Datasheet	465In Stock	£2.60 £1.78 £1.52 £1.33 View £1.26 £1.07 £1.04	Min.: 1 Mult.: 1
Ferrite Cores & Accessories EP7-N30 +30%-20% Sold as set B65839A0000R030 TDK 1: £1.31 2,052In Stock 6,000Expected 23/11/2026	Mfr. Part No. B65839A0000R030 Mouser Part No 871-B65839A0000R030	TDK	Ferrite Cores & Accessories EP7-N30 +30%-20% Sold as set Learn More about TDK epcos ep transformers	Datasheet	2,052In Stock 6,000Expected 23/11/2026	£1.31 £0.899 £0.773 £0.693 View £0.608 £0.503 £0.443	Min.: 1 Mult.: 1
Ferrite Cores & Accessories EP10-T38 +40%-30% Sold as set B65841A0000Y038 TDK 1: £1.90 1,001In Stock	Mfr. Part No. B65841A0000Y038 Mouser Part No 871-B65841A0000Y038	TDK	Ferrite Cores & Accessories EP10-T38 +40%-30% Sold as set Learn More about TDK epcos ep transformers	Datasheet	1,001In Stock	£1.90 £1.32 £1.13 £0.995 View £0.871 £0.721 £0.69	Min.: 1 Mult.: 1
Ferrite Cores & Accessories RM14 N87 250 +3%-3% Sold as set B65887E0250A087 TDK 1: £9.94 173In Stock	Mfr. Part No. B65887E0250A087 Mouser Part No 871-B65887E0250A087	TDK	Ferrite Cores & Accessories RM14 N87 250 +3%-3% Sold as set Learn More about TDK ferrite cores	Datasheet	173In Stock	£9.94 £6.77 £5.65 £4.85	Min.: 1 Mult.: 1
Ferrite Cores & Accessories RM 14 N41 400 +3%- 3% Sold as set B65887E0400A041 TDK 1: £11.88 11In Stock 240Expected 04/01/2027	Mfr. Part No. B65887E0400A041 Mouser Part No 871-B65887E400A41	TDK	Ferrite Cores & Accessories RM 14 N41 400 +3%- 3% Sold as set Learn More about TDK ferrite cores	Datasheet	11In Stock 240Expected 04/01/2027	£11.88 £8.27 £6.74 £5.92 View £5.91 £5.80	Min.: 1 Mult.: 1
Ferrite Cores & Accessories RM14 N87 7100 '+30%-20% Sold as set B65887P0000R087 TDK 1: £9.63 122In Stock	Mfr. Part No. B65887P0000R087 Mouser Part No 871-B65887P0000R087	TDK	Ferrite Cores & Accessories RM14 N87 7100 '+30%-20% Sold as set Learn More about TDK ferrite cores	Datasheet	122In Stock	£9.63 £8.11 £8.02 £7.94	Min.: 1 Mult.: 1
Ferrite Cores & Accessories COIL FORMER VALOX 420 SEO B65888C1512T001 TDK 1: £1.42 310In Stock 1,080Expected 14/01/2027	Mfr. Part No. B65888C1512T001 Mouser Part No 871-B65888C1512T1	TDK	Ferrite Cores & Accessories COIL FORMER VALOX 420 SEO Learn More about TDK ferrite cores	Datasheet	310In Stock 1,080Expected 14/01/2027	£1.42 £1.29 £1.24 £1.20 View £1.18 £1.13 £0.986 £0.969 £0.934	Min.: 1 Mult.: 1
Ferrite Cores & Accessories PS9/3.5 M33 ungapped B65935E0000X033 TDK 1: £1.41 2,735In Stock	Mfr. Part No. B65935E0000X033 Mouser Part No 871-B65935E0000X033	TDK	Ferrite Cores & Accessories PS9/3.5 M33 ungapped Learn More about TDK ferrite cores	Datasheet	2,735In Stock	£1.41 £0.978 £0.834 £0.733 View £0.645 £0.609	Min.: 1 Mult.: 1
Ferrite Cores & Accessories P CORE HALF 47 X14.9 B65943A0000X022 TDK 1: £13.23 57In Stock 1,000Expected 01/12/2026	Mfr. Part No. B65943A0000X022 Mouser Part No 871-B65943A0000X022	TDK	Ferrite Cores & Accessories P CORE HALF 47 X14.9 Learn More about TDK ferrite cores	Datasheet	57In Stock 1,000Expected 01/12/2026	£13.23 £9.18 £7.38 £7.15 £6.47	Min.: 1 Mult.: 1
Ferrite Cores & Accessories E32/16/9 N27OL B66229G0000X127 TDK 1: £1.68 1,022In Stock	Mfr. Part No. B66229G0000X127 Mouser Part No 871-B66229G0000X127	TDK	Ferrite Cores & Accessories E32/16/9 N27OL Learn More about TDK ferrite cores	Datasheet	1,022In Stock	£1.68 £1.15 £0.995 £0.871 View Reel £0.613 £0.766 £0.613 £0.613	Min.: 1 Mult.: 1 : 480
Ferrite Cores & Accessories Yoke E30 B66232A2010X000 TDK 1: £0.353 1,232In Stock 8,500On Order	Mfr. Part No. B66232A2010X000 Mouser Part No 871-B66232A2010X	TDK	Ferrite Cores & Accessories Yoke E30 Learn More about TDK ferrite cores	Datasheet	1,232In Stock 8,500On Order On Order Ship Dates Mfr. No: B66232A2010X000 Stock: 1,232 Can Dispatch Immediately On Order: 5,100 Expected 04/12/2026 3,400 Expected 25/01/2027 Factory Lead Time: 8 Weeks	£0.353 £0.318 £0.306 £0.298 View £0.288 £0.259 £0.244 £0.228 £0.223	Min.: 1 Mult.: 1
Ferrite Cores & Accessories ELP22/6/16 N87LP 0.05MM B66285G0050X187 TDK 1: £2.29 306In Stock	Mfr. Part No. B66285G0050X187 Mouser Part No 871-B66285G0050X187	TDK	Ferrite Cores & Accessories ELP22/6/16 N87LP 0.05MM Learn More about TDK ferrite cores	Datasheet	306In Stock	£2.29 £1.58 £1.34 £1.19 View £1.04 £0.849 £0.844	Min.: 1 Mult.: 1
Ferrite Cores & Accessories ELP43/10/28 N87OL B66291G0000X187 TDK 1: £3.65 405In Stock 6,150On Order	Mfr. Part No. B66291G0000X187 Mouser Part No 871-B66291G0000X187	TDK	Ferrite Cores & Accessories ELP43/10/28 N87OL Learn More about TDK ferrite cores	Datasheet	405In Stock 6,150On Order On Order Ship Dates Mfr. No: B66291G0000X187 Stock: 405 Can Dispatch Immediately On Order: 1,650 Expected 28/12/2026 2,400 Expected 19/04/2027 2,100 Expected 24/05/2027 Factory Lead Time: 8 Weeks	£3.65 £2.50 £2.11 £1.85 View £1.54 £1.53	Min.: 1 Mult.: 1
Ferrite Cores & Accessories E13/7/4 N30 1000 +30% -20% B66305G0000X130 TDK 1: £0.511 2,698In Stock	Mfr. Part No. B66305G0000X130 Mouser Part No 871-B66305GX130	TDK	Ferrite Cores & Accessories E13/7/4 N30 1000 +30% -20% Learn More about TDK ferrite cores	Datasheet	2,698In Stock	£0.511 £0.351 £0.302 £0.27 View £0.238 £0.203 £0.178 £0.166 £0.147	Min.: 1 Mult.: 1
Ferrite Cores & Accessories E16/8/5 N27OL B66307G0000X127 TDK 1: £0.608 1,874In Stock	Mfr. Part No. B66307G0000X127 Mouser Part No 871-B66307G0000X127	TDK	Ferrite Cores & Accessories E16/8/5 N27OL Learn More about TDK ferrite cores	Datasheet	1,874In Stock	£0.608 £0.426 £0.368 £0.327 View £0.29 £0.244 £0.212 £0.201 £0.181	Min.: 1 Mult.: 1
Ferrite Cores & Accessories E25/13/7 N27 1750 +30% -20% B66317GX127 TDK 1: £0.899 1,388In Stock 3,600Expected 15/02/2027	Mfr. Part No. B66317GX127 Mouser Part No 871-B66317GX127	TDK	Ferrite Cores & Accessories E25/13/7 N27 1750 +30% -20% Learn More about TDK ferrite cores	Datasheet	1,388In Stock 3,600Expected 15/02/2027	£0.899 £0.625 £0.537 £0.477 View £0.421 £0.354 £0.286	Min.: 1 Mult.: 1
Ferrite Cores & Accessories E30/15/7 N30OL B66319G0000X130 TDK 1: £1.48 1,382In Stock	Mfr. Part No. B66319G0000X130 Mouser Part No 871-B66319G0000X130	TDK	Ferrite Cores & Accessories E30/15/7 N30OL Learn More about TDK ferrite cores	Datasheet	1,382In Stock	£1.48 £1.03 £0.882 £0.78 View £0.681 £0.579 £0.523	Min.: 1 Mult.: 1
Ferrite Cores & Accessories E30/15/7 N27 1700 +30% -20% B66319GX127 TDK 1: £1.26 1,896In Stock	Mfr. Part No. B66319GX127 Mouser Part No 871-B66319GX127	TDK	Ferrite Cores & Accessories E30/15/7 N27 1700 +30% -20% Learn More about TDK ferrite cores	Datasheet	1,896In Stock	£1.26 £0.871 £0.748 £0.673 View £0.591 £0.485 £0.428	Min.: 1 Mult.: 1
Ferrite Cores & Accessories E30/15/7 N87OL B66319GX187 TDK 1: £1.35 1,771In Stock 3,400Expected 21/12/2026	Mfr. Part No. B66319GX187 Mouser Part No 871-B66319GX187	TDK	Ferrite Cores & Accessories E30/15/7 N87OL Learn More about TDK ferrite cores	Datasheet	1,771In Stock 3,400Expected 21/12/2026	£1.35 £0.943 £0.803 £0.709 View £0.622 £0.518 £0.468 £0.456	Min.: 1 Mult.: 1
Ferrite Cores & Accessories E42/21/15 N27OL B66325G0000X127 TDK 1: £3.89 49In Stock 832Expected 10/11/2026	Mfr. Part No. B66325G0000X127 Mouser Part No 871-B66325GX127	TDK	Ferrite Cores & Accessories E42/21/15 N27OL Learn More about TDK ferrite cores	Datasheet	49In Stock 832Expected 10/11/2026	£3.89 £2.67 £2.26 £1.98 View £1.55 £1.52	Min.: 1 Mult.: 1
Ferrite Cores & Accessories ETD29/16/10 N27OL B66358G0000X127 TDK 1: £1.98 802In Stock	Mfr. Part No. B66358G0000X127 Mouser Part No 871-B66358G0000X127	TDK	Ferrite Cores & Accessories ETD29/16/10 N27OL Learn More about TDK ferrite cores	Datasheet	802In Stock	£1.98 £1.37 £1.17 £1.04 View £0.899 £0.722	Min.: 1 Mult.: 1
Ferrite Cores & Accessories ETD29/16 10-N87-G1000 B66358G1000X187 TDK 1: £2.02 70In Stock 900Expected 17/11/2026	Mfr. Part No. B66358G1000X187 Mouser Part No 871-B66358G1000X187	TDK	Ferrite Cores & Accessories ETD29/16 10-N87-G1000 Learn More about TDK ferrite cores	Datasheet	70In Stock 900Expected 17/11/2026	£2.02 £1.40 £1.20 £1.05 View £0.917 £0.759 £0.726 £0.712	Min.: 1 Mult.: 1
Ferrite Cores & Accessories ETD34/17/11 N27OL B66361G0000X127 TDK 1: £2.07 592In Stock 1,200Expected 24/11/2026	Mfr. Part No. B66361G0000X127 Mouser Part No 871-B66361G0000X127	TDK	Ferrite Cores & Accessories ETD34/17/11 N27OL Learn More about TDK ferrite cores	Datasheet	592In Stock 1,200Expected 24/11/2026	£2.07 £1.42 £1.22 £1.07 View £0.943 £0.755	Min.: 1 Mult.: 1
Ferrite Cores & Accessories ETD34/17/11 N87LP 0.5MM B66361G0500X187 TDK 1: £2.06 690In Stock 1,200Expected 21/12/2026	Mfr. Part No. B66361G0500X187 Mouser Part No 871-B66361G0500X187	TDK	Ferrite Cores & Accessories ETD34/17/11 N87LP 0.5MM Learn More about TDK ferrite cores	Datasheet	690In Stock 1,200Expected 21/12/2026	£2.06 £1.42 £1.21 £1.07 View £0.943 £0.834 £0.78	Min.: 1 Mult.: 1
Ferrite Cores & Accessories ETD34/17/11 N87 gap 0.2 mm B66361G200X187 TDK 1: £2.06 1,169In Stock	Mfr. Part No. B66361G200X187 Mouser Part No 871-B66361G200X187	TDK	Ferrite Cores & Accessories ETD34/17/11 N87 gap 0.2 mm Learn More about TDK ferrite cores	Datasheet	1,169In Stock	£2.06 £1.42 £1.21 £1.07 View £0.943 £0.753	Min.: 1 Mult.: 1

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