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 15.8X8.9X4.7 N87 TOROID B64290L0743X087 TDK 1: £0.728 634In Stock 7,500Expected 15/12/2026	Mfr. Part No. B64290L0743X087 Mouser Part No 871-B64290L0743X087	TDK	Ferrite Cores & Accessories 15.8X8.9X4.7 N87 TOROID Learn More about TDK infineon powertrain	Datasheet	634In Stock 7,500Expected 15/12/2026	£0.728 £0.501 £0.429 £0.38 View Reel £0.233 £0.342 £0.282 £0.255 £0.25 £0.233	Min.: 1 Mult.: 1 : 2,500
Ferrite Cores & Accessories TOROID 41.8/26.2/12.5 N30 B64290L0022X830 TDK 1: £4.31 446In Stock 20,000On Order	Mfr. Part No. B64290L0022X830 Mouser Part No 871-B64290L22X830	TDK	Ferrite Cores & Accessories TOROID 41.8/26.2/12.5 N30 Learn More about TDK infineon powertrain	Datasheet	446In Stock 20,000On Order On Order Ship Dates Mfr. No: B64290L0022X830 Stock: 446 Can Dispatch Immediately On Order: 12,000 Expected 29/10/2026 8,000 Expected 26/11/2026 Factory Lead Time: 14 Weeks	£4.31 £2.93 £2.54	Min.: 1 Mult.: 1
Ferrite Cores & Accessories TOROID10X6X4N30 B64290L38X830 TDK 1: £0.353 5,970In Stock 23,800On Order	Mfr. Part No. B64290L38X830 Mouser Part No 871-B64290L38X830	TDK	Ferrite Cores & Accessories TOROID10X6X4N30 Learn More about TDK infineon powertrain	Datasheet	5,970In Stock 23,800On Order On Order Ship Dates Mfr. No: B64290L38X830 Stock: 5,970 Can Dispatch Immediately On Order: 11,800 Expected 05/11/2026 12,000 Expected 23/11/2026 Factory Lead Time: 14 Weeks	£0.353 £0.25 £0.193 £0.171 View Reel £0.097 £0.146 £0.127 £0.097 £0.097	Min.: 1 Mult.: 1 : 3,000
Ferrite Cores & Accessories TOROID 25.3X14.8X10 T37 B64290L618X37 TDK 1: £2.19 598In Stock 2,000Expected 09/03/2027	Mfr. Part No. B64290L618X37 Mouser Part No 871-B64290L618X37	TDK	Ferrite Cores & Accessories TOROID 25.3X14.8X10 T37 Learn More about TDK infineon powertrain	Datasheet	598In Stock 2,000Expected 09/03/2027	£2.19 £1.51 £1.29 £1.13 Reel £0.811 View £0.995 £0.863 £0.803 £0.796	Min.: 1 Mult.: 1 : 500
Ferrite Cores & Accessories TOROID 22.1X13.7 X6.35 N87 B64290L0638X087 TDK 1: £1.22 1,408In Stock	Mfr. Part No. B64290L0638X087 Mouser Part No 871-B64290L638X87	TDK	Ferrite Cores & Accessories TOROID 22.1X13.7 X6.35 N87 Learn More about TDK infineon powertrain	Datasheet	1,408In Stock	£1.22 £0.849 £0.724 £0.643 View £0.566 £0.454 £0.447	Min.: 1 Mult.: 1
Ferrite Cores & Accessories R14/9/5 N87 toroid B64290L0658X087 TDK 1: £0.578 2,518In Stock	Mfr. Part No. B64290L0658X087 Mouser Part No 871-B64290L658X87	TDK	Ferrite Cores & Accessories R14/9/5 N87 toroid Learn More about TDK infineon powertrain	Datasheet	2,518In Stock	£0.578 £0.403 £0.347 £0.309 View Reel £0.169 £0.274 £0.231 £0.201 £0.169	Min.: 1 Mult.: 1 : 1,200
Ferrite Cores & Accessories TC8/4/4-T38 B64290P0751X038 TDK 1: £0.995 1,189In Stock	Mfr. Part No. B64290P0751X038 Mouser Part No 871-B64290P751X38	TDK	Ferrite Cores & Accessories TC8/4/4-T38 Learn More about TDK infineon powertrain	Datasheet	1,189In Stock	£0.995 £0.689 £0.59 £0.522 View £0.467 £0.384 £0.346 £0.316 £0.313	Min.: 1 Mult.: 1
Ferrite Cores & Accessories CFL-P7/4-1S VALOX 420 SEO B65512C0000T001 TDK 1: £0.503 2,937In Stock	Mfr. Part No. B65512C0000T001 Mouser Part No 871-B65512C0000T001	TDK	Ferrite Cores & Accessories CFL-P7/4-1S VALOX 420 SEO Learn More about TDK ferrite cores	Datasheet	2,937In Stock	£0.503 £0.457 £0.44 £0.426 View £0.415 £0.369 £0.346 £0.333	Min.: 1 Mult.: 1
Ferrite Cores & Accessories ER14.5/3/7 N97 1500 +30% -20% Sold as set B65513J0000R097 TDK 1: £2.01 983In Stock 1,840Expected 07/12/2027	Mfr. Part No. B65513J0000R097 Mouser Part No 871-B65513J0000R097	TDK	Ferrite Cores & Accessories ER14.5/3/7 N97 1500 +30% -20% Sold as set Learn More about TDK ferrite cores	Datasheet	983In Stock 1,840Expected 07/12/2027	£2.01 £1.36 £1.16 £1.02 View £0.89 £0.759 £0.695 £0.694 £0.681	Min.: 1 Mult.: 1
Ferrite Cores & Accessories CF-P9/5-1S VALOX 420 SEO B65522B0000T001 TDK 1: £0.248 1,220In Stock 5,000Expected 20/04/2027	Mfr. Part No. B65522B0000T001 Mouser Part No 871-B65522B0000T001	TDK	Ferrite Cores & Accessories CF-P9/5-1S VALOX 420 SEO Learn More about TDK ferrite cores	Datasheet	1,220In Stock 5,000Expected 20/04/2027	£0.248 £0.223 £0.216 £0.21 View £0.203 £0.196 £0.179 £0.168 £0.151	Min.: 1 Mult.: 1
Ferrite Cores & Accessories P 47X28 N48 9500 +30%-20% Sold as set B65631J0000R048 TDK 1: £17.20 64In Stock	Mfr. Part No. B65631J0000R048 Mouser Part No 871-B65631J0000R048	TDK	Ferrite Cores & Accessories P 47X28 N48 9500 +30%-20% Sold as set Learn More about TDK ferrite cores	Datasheet	64In Stock	£17.20 £11.08 £8.71 £8.55	Min.: 1 Mult.: 1
Ferrite Cores & Accessories COIL FORMER VALOX 420 SEO B65652B0000T001 TDK 1: £0.203 10,465In Stock 6,000Expected 25/01/2027	Mfr. Part No. B65652B0000T001 Mouser Part No 871-B65652B0000T001	TDK	Ferrite Cores & Accessories COIL FORMER VALOX 420 SEO Learn More about TDK ferrite cores	Datasheet	10,465In Stock 6,000Expected 25/01/2027	£0.203 £0.184 £0.173 £0.167 View £0.147 £0.128 £0.113 £0.102 £0.093	Min.: 1 Mult.: 1
Ferrite Cores & Accessories COIL FORMER VALOX 420 SEO B65672B0000T001 TDK 1: £0.436 2,596In Stock 1,600Expected 26/04/2027	Mfr. Part No. B65672B0000T001 Mouser Part No 871-B65672B0000T001	TDK	Ferrite Cores & Accessories COIL FORMER VALOX 420 SEO Learn More about TDK ferrite cores	Datasheet	2,596In Stock 1,600Expected 26/04/2027	£0.436 £0.395 £0.38 £0.368 View £0.347 £0.313 £0.293 £0.283	Min.: 1 Mult.: 1
Ferrite Cores & Accessories COIL FORMER VALOX 420 SEO B65687A1000T001 TDK 1: £4.91 242In Stock	Mfr. Part No. B65687A1000T001 Mouser Part No 871-B65687A1000T001	TDK	Ferrite Cores & Accessories COIL FORMER VALOX 420 SEO Learn More about TDK ferrite cores	Datasheet	242In Stock	£4.91 £4.43 £4.21 £3.95 View £3.72 £3.66 £3.61 £3.57	Min.: 1 Mult.: 1
Ferrite Cores & Accessories P59/36 N48 12500 +30% -20% Sold as set B65691K0000R048 TDK 1: £38.20 38In Stock 100Expected 24/05/2027	Mfr. Part No. B65691K0000R048 Mouser Part No 871-B65691K0000R048	TDK	Ferrite Cores & Accessories P59/36 N48 12500 +30% -20% Sold as set Learn More about TDK ferrite cores	Datasheet	38In Stock 100Expected 24/05/2027	£38.20 £24.24	Min.: 1 Mult.: 1
Ferrite Cores & Accessories COIL FORMER VALOX 420 SEO B65714K1020T001 TDK 1: £8.83 133In Stock	Mfr. Part No. B65714K1020T001 Mouser Part No 871-B65714K1020T001	TDK	Ferrite Cores & Accessories COIL FORMER VALOX 420 SEO Learn More about TDK ferrite cores	Datasheet	133In Stock	£8.83 £7.79 £7.54 £7.36 £6.88	Min.: 1 Mult.: 1
Ferrite Cores & Accessories Coil former PM114/93 Ryton R-4 B65734B1000T1 TDK 1: £10.06 94In Stock 112Expected 18/01/2027	Mfr. Part No. B65734B1000T1 Mouser Part No 871-B65734B1000T1	TDK	Ferrite Cores & Accessories Coil former PM114/93 Ryton R-4 Learn More about TDK ferrite cores	Datasheet	94In Stock 112Expected 18/01/2027	£10.06 £7.71 £7.38 £7.16 View £6.19 £6.08 £6.01 £5.94	Min.: 1 Mult.: 1
Ferrite Cores & Accessories CLAMP RM 2 PCS REQUIRED B65804P2203X000 TDK 1: £0.45 3,384In Stock	Mfr. Part No. B65804P2203X000 Mouser Part No 871-B65804P2203X000	TDK	Ferrite Cores & Accessories CLAMP RM 2 PCS REQUIRED Learn More about TDK ferrite cores	Datasheet	3,384In Stock	£0.45 £0.41 £0.395 £0.368 View £0.345 £0.304 £0.285 £0.275 £0.271	Min.: 1 Mult.: 1
Ferrite Cores & Accessories RM5-N48 +30%-20% Sold as set B65805C0000R048 TDK 1: £2.65 600In Stock	Mfr. Part No. B65805C0000R048 Mouser Part No 871-B65805C0000R048	TDK	Ferrite Cores & Accessories RM5-N48 +30%-20% Sold as set Learn More about TDK ferrite cores	Datasheet	600In Stock	£2.65 £1.83 £1.55 £1.37 View £1.19 £1.00	Min.: 1 Mult.: 1
Ferrite Cores & Accessories CLM-RM5 2 PCS REQUIRED B65806J2204X000 TDK 1: £0.135 5,959In Stock	Mfr. Part No. B65806J2204X000 Mouser Part No 871-B65806J2204X000	TDK	Ferrite Cores & Accessories CLM-RM5 2 PCS REQUIRED Learn More about TDK ferrite cores	Datasheet	5,959In Stock	£0.135 £0.125 £0.117 £0.114 View £0.11 £0.10 £0.088 £0.087 £0.086	Min.: 1 Mult.: 1
Ferrite Cores & Accessories WAS-RM6-2 MAKROFOL KL3 B65808C2005X000 TDK 1: £0.353 5,947In Stock 5,000Expected 12/03/2027	Mfr. Part No. B65808C2005X000 Mouser Part No 871-B65808C2005X	TDK	Ferrite Cores & Accessories WAS-RM6-2 MAKROFOL KL3 Learn More about TDK ferrite cores	Datasheet	5,947In Stock 5,000Expected 12/03/2027	£0.353 £0.322 £0.31 £0.293 View £0.261 £0.223 £0.195 £0.193	Min.: 1 Mult.: 1
Ferrite Cores & Accessories COIL FORMER SUMIKON PM 9630 B65808N1006D002 TDK 1: £1.14 1,327In Stock	Mfr. Part No. B65808N1006D002 Mouser Part No 871-B65808N1006D002	TDK	Ferrite Cores & Accessories COIL FORMER SUMIKON PM 9630 Learn More about TDK ferrite cores	Datasheet	1,327In Stock	£1.14 £1.05 £0.986 £0.908 View £0.841 £0.796 £0.68 £0.678	Min.: 1 Mult.: 1
Ferrite Cores & Accessories Coil former RM6 Sumikon PM 9630 B65808N1108D002 TDK 1: £2.17 22In Stock 1,000Expected 01/01/2027	Mfr. Part No. B65808N1108D002 Mouser Part No 871-B65808N1108D002	TDK	Ferrite Cores & Accessories Coil former RM6 Sumikon PM 9630 Learn More about TDK ferrite cores	Datasheet	22In Stock 1,000Expected 01/01/2027	£2.17 £1.68 £1.52 £1.40 View £1.36 £1.35	Min.: 1 Mult.: 1
Ferrite Cores & Accessories RM8 N87 100 +3%-3% Sold as set B65811J0100A087 TDK 1: £3.40 125In Stock 1,200On Order	Mfr. Part No. B65811J0100A087 Mouser Part No 871-B65811J0100A087	TDK	Ferrite Cores & Accessories RM8 N87 100 +3%-3% Sold as set Learn More about TDK ferrite cores	Datasheet	125In Stock 1,200On Order On Order Ship Dates Mfr. No: B65811J0100A087 Stock: 125 Can Dispatch Immediately On Order: 400 Expected 24/03/2027 800 Expected 19/05/2027 Factory Lead Time: 30 Weeks	£3.40 £2.33 £1.97 £1.73 View £1.40 £1.30 £1.27	Min.: 1 Mult.: 1
Ferrite Cores & Accessories Insulating washer RM8 Flexiso FI 16000 B65812F5000X000 TDK 1: £0.54 3,602In Stock 10,000On Order	Mfr. Part No. B65812F5000X000 Mouser Part No 871-B65812F5000X000	TDK	Ferrite Cores & Accessories Insulating washer RM8 Flexiso FI 16000 Learn More about TDK ferrite cores	Datasheet	3,602In Stock 10,000On Order On Order Ship Dates Mfr. No: B65812F5000X000 Stock: 3,602 Can Dispatch Immediately On Order: 4,000 Expected 21/01/2027 6,000 Expected 25/01/2027 Factory Lead Time: 22 Weeks	£0.54 £0.49 £0.471 £0.444 View £0.416 £0.368 £0.347 £0.334 £0.333	Min.: 1 Mult.: 1

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Ferrite Cores & Accessories

Types of Passive Components