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EMI Suppression Ferrite Beads

Würth Elektronik EMI Suppression Ferrite Bead product families include the WE-AFB, WE-AFB LFS, WE-SAFB, and WE-TOF series. The WE-AFB, WE-SAFB, and WE-TOF series all feature a ferrite core made of NiZn. This NiZn core allows for the best possible interference suppression and works in a broadband frequency range. The NiZn core ferrites are available in axial (WE-AFB) and toroidal (WE-SAFB) types. Würth WE-SAFB ferrite beads are smaller in size and used for cables with a diameter of 0.55mm up to 4mm. The WE-AFB LFS axial ferrite beads have an MnZn core. The MnZn core material is used for low-frequency applications from 150kHz and 30MHz.

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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 Toroids / Ferrite Rings WE-TOF EMI Toroidal 125 ohm 14.5mm 742701703 Wurth Elektronik 1: £1.26 2,213In Stock 1,300Expected 12/10/2026	Mfr. Part No. 742701703 Mouser Part No 710-742701703	Wurth Elektronik	Ferrite Toroids / Ferrite Rings WE-TOF EMI Toroidal 125 ohm 14.5mm Learn More about Wurth Elektronik wurth emi suppression ferrite beads	Datasheet	2,213In Stock 1,300Expected 12/10/2026	£1.26 £1.15 £1.05 £0.943 View £0.863 £0.796	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings WE-TOF EMI Suppressn 100ohms 7.5mm 742701716 Wurth Elektronik 1: £0.773 4,953In Stock 3,300Expected 02/10/2026	Mfr. Part No. 742701716 Mouser Part No 710-742701716	Wurth Elektronik	Ferrite Toroids / Ferrite Rings WE-TOF EMI Suppressn 100ohms 7.5mm Learn More about Wurth Elektronik wurth emi suppression ferrite beads	Datasheet	4,953In Stock 3,300Expected 02/10/2026	£0.773 £0.705 £0.641 £0.583 View £0.53 £0.491	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings WE-TOF EMI Toroidal 165 ohm 33.4mm 74270191 Wurth Elektronik 1: £5.66 2,453In Stock 15,420On Order	Mfr. Part No. 74270191 Mouser Part No 710-74270191	Wurth Elektronik	Ferrite Toroids / Ferrite Rings WE-TOF EMI Toroidal 165 ohm 33.4mm Learn More about Wurth Elektronik wurth emi suppression ferrite beads	Datasheet	2,453In Stock 15,420On Order On Order Ship Dates Mfr. No: 74270191 Stock: 2,453 Can Dispatch Immediately On Order: 1,890 Expected 23/10/2026 13,530 Expected 13/11/2026 Factory Lead Time: 24 Weeks	£5.66 £5.14 £4.25 £3.87	Min.: 1 Mult.: 1
Ferrite Cable Cores WE-FLAT Core 25MHz 26Ohm 7427214 Wurth Elektronik 1: £5.46 3,916In Stock	Mfr. Part No. 7427214 Mouser Part No 710-7427214	Wurth Elektronik	Ferrite Cable Cores WE-FLAT Core 25MHz 26Ohm Learn More about Wurth Elektronik wurthWEFLATferrite	Datasheet	3,916In Stock	£5.46 £5.28 £4.93 £4.65 View £4.39 £4.22	Min.: 1 Mult.: 1
Ferrite Cable Cores WE-FLAT Core 100MHz 166Ohm 7427221 Wurth Elektronik 1: £1.19 3,227In Stock	Mfr. Part No. 7427221 Mouser Part No 710-7427221	Wurth Elektronik	Ferrite Cable Cores WE-FLAT Core 100MHz 166Ohm Learn More about Wurth Elektronik wurthWEFLATferrite	Datasheet	3,227In Stock	£1.19 £1.16 £1.13 £1.07 View £1.03 £0.995	Min.: 1 Mult.: 1
Ferrite Cable Cores WE-FLAT Core 100MHz 115Ohm 7427224 Wurth Elektronik 1: £1.36 3,039In Stock	Mfr. Part No. 7427224 Mouser Part No 710-7427224	Wurth Elektronik	Ferrite Cable Cores WE-FLAT Core 100MHz 115Ohm Learn More about Wurth Elektronik wurthWEFLATferrite	Datasheet	3,039In Stock	£1.36 £1.33 £1.28 £1.23 View £1.18 £1.13	Min.: 1 Mult.: 1
Ferrite Cable Cores WE-AFB Axial 1MHz 100Ohm 74277253 Wurth Elektronik 1: £3.92 1,126In Stock	Mfr. Part No. 74277253 Mouser Part No 710-74277253	Wurth Elektronik	Ferrite Cable Cores WE-AFB Axial 1MHz 100Ohm Learn More about Wurth Elektronik wurth emi suppression ferrite beads	Datasheet	1,126In Stock	£3.92 £3.83 £3.68 £3.22 £3.07	Min.: 1 Mult.: 1
Ferrite Cable Cores WE-AFB Axial 1MHz 90Ohm 74277255 Wurth Elektronik 1: £4.24 606In Stock	Mfr. Part No. 74277255 Mouser Part No 710-74277255	Wurth Elektronik	Ferrite Cable Cores WE-AFB Axial 1MHz 90Ohm Learn More about Wurth Elektronik wurth emi suppression ferrite beads	Datasheet	606In Stock	£4.24 £4.16 £4.00 £3.82 View £3.49 £3.33	Min.: 1 Mult.: 1
Ferrite Cable Cores WE-AFB EMI Suppressn 100ohms 6.1mm 7427727 Wurth Elektronik 1: £3.15 1,243In Stock 800Expected 19/10/2026	Mfr. Part No. 7427727 Mouser Part No 710-7427727	Wurth Elektronik	Ferrite Cable Cores WE-AFB EMI Suppressn 100ohms 6.1mm Learn More about Wurth Elektronik wurth emi suppression ferrite beads	Datasheet	1,243In Stock 800Expected 19/10/2026	£3.15 £3.09 £2.98 £2.59 £2.47	Min.: 1 Mult.: 1
Ferrite Cable Cores WE-AFB Axial 1MHz 100Ohm 7427729 Wurth Elektronik 1: £3.44 2,050In Stock	Mfr. Part No. 7427729 Mouser Part No 710-7427729	Wurth Elektronik	Ferrite Cable Cores WE-AFB Axial 1MHz 100Ohm Learn More about Wurth Elektronik wurth emi suppression ferrite beads	Datasheet	2,050In Stock	£3.44 £3.37 £3.24 £2.83 £2.70	Min.: 1 Mult.: 1
Ferrite Cable Cores WE-AFB Axial Ferrite 10MHz 50Ohm 74277290 Wurth Elektronik 1: £5.22 2,180In Stock 756Expected 19/10/2026	Mfr. Part No. 74277290 Mouser Part No 710-74277290	Wurth Elektronik	Ferrite Cable Cores WE-AFB Axial Ferrite 10MHz 50Ohm Learn More about Wurth Elektronik wurth emi suppression ferrite beads	Datasheet	2,180In Stock 756Expected 19/10/2026	£5.22 £5.12 £4.91 £4.71 £4.30	Min.: 1 Mult.: 1
Ferrite Cable Cores WE-FLAT for Flex Circ Bds 22Ohm 24mm 74278009 Wurth Elektronik 1: £1.31 1,126In Stock	Mfr. Part No. 74278009 Mouser Part No 710-74278009	Wurth Elektronik	Ferrite Cable Cores WE-FLAT for Flex Circ Bds 22Ohm 24mm Learn More about Wurth Elektronik wurthWEFLATferrite	Datasheet	1,126In Stock	£1.31 £1.28 £1.20	Min.: 1 Mult.: 1
Ferrite Cable Cores WE-AEFA AEC-Q200 460Ohm Ferrite Core 782013076508 Wurth Elektronik 1: £4.45 806In Stock 780Expected 23/02/2027	Mfr. Part No. 782013076508 Mouser Part No 710-782013076508	Wurth Elektronik	Ferrite Cable Cores WE-AEFA AEC-Q200 460Ohm Ferrite Core Learn More about Wurth Elektronik wurth we aefa axial ferrites	Datasheet	806In Stock 780Expected 23/02/2027	£4.45 £4.38 £4.08 £3.93	Min.: 1 Mult.: 1
Ferrite Cable Cores WE-SAFB 1.4mm 28Ohm @ 25MHz 74270011 Wurth Elektronik 1: £0.473 3,327In Stock 5,000Expected 02/10/2026	Mfr. Part No. 74270011 Mouser Part No 710-74270011	Wurth Elektronik	Ferrite Cable Cores WE-SAFB 1.4mm 28Ohm @ 25MHz Learn More about Wurth Elektronik wurth emi suppression ferrite beads	Datasheet	3,327In Stock 5,000Expected 02/10/2026	£0.473 £0.449 £0.42 £0.391 £0.376	Min.: 1 Mult.: 1
Ferrite Cable Cores WE-SAFB 2.2mm 71Ohm @ 25MHz 74270020 Wurth Elektronik 1: £0.473 3,541In Stock	Mfr. Part No. 74270020 Mouser Part No 710-74270020	Wurth Elektronik	Ferrite Cable Cores WE-SAFB 2.2mm 71Ohm @ 25MHz Learn More about Wurth Elektronik wurth emi suppression ferrite beads	Datasheet	3,541In Stock	£0.473 £0.449 £0.42 £0.391 £0.376	Min.: 1 Mult.: 1
Ferrite Cable Cores WE-AFB Axial 25MHz 85Ohm 74270034 Wurth Elektronik 1: £1.13 2,054In Stock 1,728Expected 02/10/2026	Mfr. Part No. 74270034 Mouser Part No 710-74270034	Wurth Elektronik	Ferrite Cable Cores WE-AFB Axial 25MHz 85Ohm Learn More about Wurth Elektronik wurth emi suppression ferrite beads	Datasheet	2,054In Stock 1,728Expected 02/10/2026	£1.13 £1.12 £1.07 £0.995 View £0.96 £0.882	Min.: 1 Mult.: 1
Ferrite Cable Cores WE-AFB Axial 25MHz 71Ohm 74270091 Wurth Elektronik 1: £1.84 1,083In Stock	Mfr. Part No. 74270091 Mouser Part No 710-74270091	Wurth Elektronik	Ferrite Cable Cores WE-AFB Axial 25MHz 71Ohm Learn More about Wurth Elektronik wurth emi suppression ferrite beads	Datasheet	1,083In Stock	£1.84 £1.80 £1.73 £1.65 View £1.58 £1.50	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings WE-TOF Toroidal 45Ohm @ 25MHz 742701110 Wurth Elektronik 1: £1.68 749In Stock	Mfr. Part No. 742701110 Mouser Part No 710-742701110	Wurth Elektronik	Ferrite Toroids / Ferrite Rings WE-TOF Toroidal 45Ohm @ 25MHz Learn More about Wurth Elektronik wurth emi suppression ferrite beads	Datasheet	749In Stock	£1.68 £1.66 £1.60 £1.54 £1.42	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings WE-TOF Toroidal 1Turn 100MHz @75Ohms 74270112 Wurth Elektronik 1: £0.458 588In Stock 2,400Expected 02/10/2026	Mfr. Part No. 74270112 Mouser Part No 710-74270112	Wurth Elektronik	Ferrite Toroids / Ferrite Rings WE-TOF Toroidal 1Turn 100MHz @75Ohms Learn More about Wurth Elektronik wurth emi suppression ferrite beads	Datasheet	588In Stock 2,400Expected 02/10/2026	£0.458 £0.454 £0.437 £0.42 £0.387	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings WE-TOF Toroidal 30Ohm @ 25MHz 74270118 Wurth Elektronik 1: £1.17 330In Stock	Mfr. Part No. 74270118 Mouser Part No 710-74270118	Wurth Elektronik	Ferrite Toroids / Ferrite Rings WE-TOF Toroidal 30Ohm @ 25MHz Learn More about Wurth Elektronik wurth emi suppression ferrite beads	Datasheet	330In Stock	£1.17 £1.15 £1.11 £1.07 £0.986	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings WE-TOF Toroidal 45Ohm @ 25MHz 74270119 Wurth Elektronik 1: £0.668 348In Stock 11,224On Order	Mfr. Part No. 74270119 Mouser Part No 710-74270119	Wurth Elektronik	Ferrite Toroids / Ferrite Rings WE-TOF Toroidal 45Ohm @ 25MHz Learn More about Wurth Elektronik wurth emi suppression ferrite beads	Datasheet	348In Stock 11,224On Order On Order Ship Dates Mfr. No: 74270119 Stock: 348 Can Dispatch Immediately On Order: 5,704 Expected 02/10/2026 5,520 Expected 25/11/2026 Factory Lead Time: 10 Weeks	£0.668 £0.655 £0.63 £0.607 £0.558	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings WE-TOF Toroidal 25Ohm @ 25MHz 74270161 Wurth Elektronik 1: £1.05 793In Stock	Mfr. Part No. 74270161 Mouser Part No 710-74270161	Wurth Elektronik	Ferrite Toroids / Ferrite Rings WE-TOF Toroidal 25Ohm @ 25MHz Learn More about Wurth Elektronik wurth emi suppression ferrite beads	Datasheet	793In Stock	£1.05 £1.04 £0.995 £0.96 £0.882	Min.: 1 Mult.: 1
Ferrite Cable Cores WE-FLAT 42Ohms 23Pol 7427222 Wurth Elektronik 1: £2.16 27In Stock	Mfr. Part No. 7427222 Mouser Part No 710-7427222	Wurth Elektronik	Ferrite Cable Cores WE-FLAT 42Ohms 23Pol Learn More about Wurth Elektronik wurthWEFLATferrite	Datasheet	27In Stock	£2.16 £2.01 £1.85 £1.66 £1.50	Min.: 1 Mult.: 1
Ferrite Cable Cores WE-FLAT Core 100MHz 48Ohm 7427223 Wurth Elektronik 1: £3.13 486In Stock	Mfr. Part No. 7427223 Mouser Part No 710-7427223	Wurth Elektronik	Ferrite Cable Cores WE-FLAT Core 100MHz 48Ohm Learn More about Wurth Elektronik wurthWEFLATferrite	Datasheet	486In Stock	£3.13 £2.95 £2.76 £2.57 £2.47	Min.: 1 Mult.: 1
Ferrite Cable Cores WE-SAFB 3.45mm 35Ohms @ 25MHz 1Turn 74270022 Wurth Elektronik 1: £0.586 4,180In Stock	Mfr. Part No. 74270022 Mouser Part No 710-74270022	Wurth Elektronik	Ferrite Cable Cores WE-SAFB 3.45mm 35Ohms @ 25MHz 1Turn Learn More about Wurth Elektronik wurth emi suppression ferrite beads	Datasheet	4,180In Stock	£0.586 £0.507 £0.448 £0.417 View £0.373 £0.357 £0.343	Min.: 1 Mult.: 1

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