Ferrite Cores

Browse available Ferrite Cores components by manufacturer and part number. Review stock status, datasheets and key technical parameters to compare suitable options for design, maintenance, replacement or purchasing.

If you already have a target MPN or BOM, send it to EGOO with the required quantity. Our sourcing team can check availability, lead time and quotation options, including hard-to-find and obsolete parts.

Mfr. Part #	Availability	Price	Quantity	Datasheet	Series	Packaging	Product Status	Core Type	Supplier Device Package	Material	Diameter	Inductance Factor (Al)	Tolerance	Gap	Effective Permeability (µe)	Initial Permeability (µi)	Core Factor (ΣI/A) mm⁻¹	Effective Length (le) mm	Effective Area (Ae) mm²	Minimum Core Cross Section (Amin) mm²	Effective Magnetic Volume (Ve) mm³	Finish	Height	Length	Width
5961000111 FERRITE CORE TOROID 25NH 61 Fair-Rite Products Corp.	11,399	-	RFQ	Datasheet	-	Bag	Active	Toroid	-	61	0.236" (6.00mm)	25 nH	±25%	Ungapped	-	125	6.37	13.0	2.0	-	27.0	Parylene	0.067" (1.70mm)	-	-
B64290L0038X087 FERRITE CORE TOROID 900NH N87 EPCOS - TDK Electronics	1,015	-	RFQ	Datasheet	TX10/6/4	Bulk	Active	Toroid	-	N87	0.425" (10.80mm)	900 nH	±25%	Ungapped	-	2200	3.07	24.07	7.83	-	188.0	Epoxy	0.187" (4.75mm)	-	-
E13/7/4-3C94 FERRITE CORE E 3C94 Ferroxcube	5,969	-	RFQ	Datasheet	-	Bulk	Active	E	E 13 x 7 x 4	3C94	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.256" (6.50mm)	0.496" (12.60mm)	0.146" (3.70mm)
YW40301TC TOROID-PARYLENE COATED Magnetics, a division of Spang & Co.	92,302	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	W	0.149" (3.79mm)	1.65 µH	±30%	Ungapped	-	10000	-	7.65	1.03	-	7.87	Parylene	0.060" (1.52mm)	-	-
B64290L0038X830 FERRITE CORE TOROID 1.76UH N30 EPCOS - TDK Electronics	6,762	-	RFQ	Datasheet	TX10/6/4	Bulk	Active	Toroid	-	N30	0.425" (10.80mm)	1.76 µH	±25%	Ungapped	-	4300	3.07	24.07	7.83	-	188.0	Epoxy	0.187" (4.75mm)	-	-
E16/8/5-3C94 FERRITE CORE E 3C94 Ferroxcube	9,439	-	RFQ	Datasheet	-	Bulk	Active	E	E 16 x 8 x 5	3C94	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.323" (8.20mm)	0.630" (16.00mm)	0.185" (4.70mm)
3067990851 FERRITE CORE ROD 67 Fair-Rite Products Corp.	4,541	-	RFQ	Datasheet	-	Box	Active	ROD	-	67	0.079" (2.00mm)	-	-	Ungapped	18.0	40	-	-	3.14	-	-	Uncoated	-	0.591" (15.00mm)	-
3061990851 FERRITE CORE ROD 61 Fair-Rite Products Corp.	1,395	-	RFQ	Datasheet	-	Box	Active	ROD	-	61	0.079" (2.00mm)	-	-	Ungapped	25.0	125	-	-	3.14	-	-	Uncoated	-	0.591" (15.00mm)	-
B64290P0036X038 FERRITE CORE TOROID 1.63UH T38 EPCOS - TDK Electronics	34,948	-	RFQ	Datasheet	TC4.0/2.4/1.6	Box	Active	Toroid	-	T38	0.158" (4.02mm)	1.63 µH	±30%	Ungapped	-	10000	7.7	9.63	1.25	-	12.0	Parylene	0.064" (1.62mm)	-	-
B64290L0044X049 FERRITE CORE TOROID 660NH N49 EPCOS - TDK Electronics	9,511	-	RFQ	Datasheet	TX12.5/7.5/5	Box	Active	Toroid	-	N49	0.535" (13.60mm)	660 nH	±25%	Ungapped	-	1300	2.46	30.09	12.23	-	368.0	Epoxy	0.234" (5.95mm)	-	-
B64290L0763X087 FERRITE CORE TOROID N87 EPCOS - TDK Electronics	20,000	-	RFQ	Datasheet	TX10/6/3	Box	Active	Toroid	-	N87	-	-	-	Gapped	-	2200	-	-	-	-	-	Epoxy	-	-	-
YW40503TC TOROID-PARYLENE COATED Magnetics, a division of Spang & Co.	6,115	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	W	0.166" (4.22mm)	2.95 µH	±30%	Ungapped	-	10000	-	9.21	2.1	-	19.3	Parylene	0.113" (2.87mm)	-	-
B66305G0000X127 FERRITE CORE E N27 1PC EPCOS - TDK Electronics	16,917	-	RFQ	Datasheet	E13/7/4	Box	Active	E	E 13 x 7 x 4	N27	-	-	-	Ungapped	-	-	-	-	-	-	-	Uncoated	0.256" (6.50mm)	0.496" (12.60mm)	0.146" (3.70mm)
5943000221 FERRITE CORE TOROID 350NH 43 Fair-Rite Products Corp.	11,834	-	RFQ	Datasheet	-	Box	Active	Toroid	-	43	0.402" (10.20mm)	350 nH	-25%, +20%	Ungapped	-	800	2.8549	20.7	7.25	-	150.0	Plastic	0.150" (3.81mm)	-	-
B64290L0044X830 FERRITE CORE TOROID 2.2UH N30 EPCOS - TDK Electronics	3,215	-	RFQ	Datasheet	TX12.5/7.5/5	Bulk	Active	Toroid	-	N30	0.535" (13.60mm)	2.2 µH	±25%	Ungapped	-	4300	2.46	30.09	12.23	-	368.0	Epoxy	0.234" (5.95mm)	-	-
B64290L0044X087 FERRITE CORE TOROID 1.12UH N87 EPCOS - TDK Electronics	4,647	-	RFQ	Datasheet	TX12.5/7.5/5	Box	Active	Toroid	-	N87	0.535" (13.60mm)	1.12 µH	±25%	Ungapped	-	2200	2.46	30.09	12.23	-	368.0	Epoxy	0.234" (5.95mm)	-	-
B64290A0038X038 FERRITE CORE TOROID 4.09UH T38 EPCOS - TDK Electronics	4,575	-	RFQ	Datasheet	T10/6/4	Box	Active	Toroid	R 10 x 6 x 4	T38	0.394" (10.00mm)	4.09 µH	±30%	Ungapped	-	10000	3.07	24.07	7.83	-	188.0	Uncoated	0.157" (4.00mm)	-	-
5976000201 FERRITE CORE TOROID 76 Fair-Rite Products Corp.	2,251	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	76	0.375" (9.53mm)	-	±30%	Ungapped	-	10000	-	20.7	7.2	-	150.0	Uncoated	0.125" (3.18mm)	-	-
B66307G0000X127 FERRITE CORE E N27 1PC EPCOS - TDK Electronics	6,547	-	RFQ	Datasheet	E16/8/5	Box	Active	E	E 16 x 8 x 5	N27	-	-	-	Ungapped	-	-	-	-	-	-	-	Uncoated	0.323" (8.20mm)	0.630" (16.00mm)	0.185" (4.70mm)
B64290L0644X830 FERRITE CORE TOROID 2.03UH N30 EPCOS - TDK Electronics	3,874	-	RFQ	Datasheet	TX13.3/8.3/5	Box	Active	Toroid	-	N30	0.567" (14.40mm)	2.03 µH	±25%	Ungapped	-	4300	2.67	32.7	12.27	-	401.0	Epoxy	0.234" (5.95mm)	-	-

Ferrite Cores FAQ

What Ferrite Cores components can I source from EGOO?

You can browse available Ferrite Cores product families, manufacturers and part numbers on this page, then review stock, datasheets and technical information for suitable options.

Can EGOO help with hard-to-source or obsolete Ferrite Cores parts?

Yes. EGOO provides sourcing support for shortage, obsolete and hard-to-find electronic components. Send us the target manufacturer part number and quantity for checking.

Does EGOO support BOM and small-batch sourcing?

Yes. We support BOM sourcing, prototype requirements and small-batch supply, together with stock, lead-time and quotation assistance.

How do I request pricing and availability?

Submit the manufacturer part number, required quantity and any package, date-code or delivery requirements through the RFQ form, and our team will review available sourcing options.