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
TC5.8/3.1/3.2-3E27 Ferrite Misc Ferroxcube	3,853	-	RFQ	Datasheet	-	Bulk	Active	Toroid	Toroid 5.8 x 3.1 x 3.2	3E27	0.236" (6.00mm)	2.27 µH	±25%	Ungapped	5500.0	-	3.04	13.0	4.28	-	55.8	Parylene	0.131" (3.33mm)	-	-
0J41406TC TOROID UNCOATED Magnetics, a division of Spang & Co.	1,295	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	J	0.500" (12.70mm)	3.612 µH	±20%	Ungapped	-	5000	-	29.5	17.1	-	506.7	Uncoated	0.250" (6.35mm)	-	-
0W40705TC TOROID UNCOATED Magnetics, a division of Spang & Co.	1,915	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	W	0.300" (7.62mm)	8.35 µH	±30%	Ungapped	-	10000	-	15.0	9.9	-	149.0	Uncoated	0.188" (4.78mm)	-	-
TC6.3/3.8/2.5-3E6 Ferrite Misc Ferroxcube	4,692	-	RFQ	Datasheet	-	Bulk	Active	Toroid	Toroid 6.3 x 3.8 x 2.5	3E6	0.248" (6.30mm)	2.53 µH	±30%	Ungapped	10000.0	-	4.97	15.2	3.06	-	46.5	Parylene	0.098" (2.50mm)	-	-
YM40603TC TOROID PARYLENE COATED Magnetics, a division of Spang & Co.	4,716	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	M	0.244" (6.20mm)	6.199 µH	±30%	Ungapped	-	15000	-	13.0	4.3	-	56.0	Parylene	0.138" (3.50mm)	-	-
0P42510EC E-SHAPE CORE Magnetics, a division of Spang & Co.	4,505	-	RFQ	Datasheet	-	Bulk	Active	E	-	P	-	1.92 µH	-	Ungapped	-	2500	-	49.0	39.5	37.0	1930.0	Uncoated	0.380" (9.65mm)	1.000" (25.40mm)	0.250" (6.35mm)
0M41003TC TOROID UNCOATED Magnetics, a division of Spang & Co.	3,376	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	M	0.375" (9.53mm)	6.644 µH	±30%	Ungapped	-	15000	-	20.7	7.3	-	151.0	Uncoated	0.125" (3.18mm)	-	-
B64290A0038X830 FERRITE CORE TOROID 1.76UH N30 EPCOS - TDK Electronics	2,365	-	RFQ	Datasheet	T10/6/4	Box	Active	Toroid	R 10 x 6 x 4	N30	0.394" (10.00mm)	1.76 µH	±25%	Ungapped	-	4300	3.07	24.07	7.83	-	188.0	Uncoated	0.157" (4.00mm)	-	-
B64290L0038X065 FERRITE CORE TOROID 1.9UH T65 EPCOS - TDK Electronics	4,699	-	RFQ	Datasheet	TX10/6/4	Box	Active	Toroid	-	T65	0.425" (10.80mm)	1.9 µH	±30%	Ungapped	-	4700	3.07	24.07	7.83	-	188.0	Epoxy	0.187" (4.75mm)	-	-
0R41515EC EFD CORE Magnetics, a division of Spang & Co.	3,401	-	RFQ	Datasheet	-	Bulk	Active	EFD	-	R	-	893 nH	-	Ungapped	-	2300	-	34.0	15.0	12.2	510.0	Uncoated	0.295" (7.50mm)	0.591" (15.00mm)	0.183" (4.65mm)
XJ41003TC TOROID BLACK COATED Magnetics, a division of Spang & Co.	1,906	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	-	0.388" (9.86mm)	2.796 µH	±20%	Ungapped	-	-	-	20.7	7.3	-	151.0	Coated	0.133" (3.38mm)	-	-
0J41205EC E-SHAPE CORE Magnetics, a division of Spang & Co.	2,328	-	RFQ	Datasheet	-	Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
0F41206TC TOROID UNCOATED Magnetics, a division of Spang & Co.	4,923	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	F	0.500" (12.70mm)	3.384 µH	±20%	Ungapped	-	3000	-	25.0	22.0	-	550.0	Uncoated	0.250" (6.35mm)	-	-
0L41808EC E CORE Magnetics, a division of Spang & Co.	4,631	-	RFQ	Datasheet	-	Bulk	Active	E	-	L	-	470 nH	±25%	Ungapped	-	900	-	39.9	22.6	22.1	900.0	Uncoated	0.319" (8.10mm)	0.752" (19.10mm)	0.187" (4.75mm)
B66307G0400X127 FERRITE CORE E N27 EPCOS - TDK Electronics	3,388	-	RFQ	Datasheet	-	Box	Not For New Designs	E	E 16 x 8 x 5	N27	-	-	-	-	-	2000	1.87	37.6	20.1	19.4	756.0	Uncoated	0.323" (8.20mm)	0.630" (16.00mm)	0.185" (4.70mm)
TC5.8/3.1/3.2-3E6 Ferrite Misc Ferroxcube	2,049	-	RFQ	Datasheet	-	Bulk	Active	Toroid	Toroid 5.8 x 3.1 x 3.2	3E6	0.236" (6.00mm)	4.13 µH	±30%	Ungapped	10000.0	-	3.04	13.0	4.28	-	55.8	Parylene	0.131" (3.33mm)	-	-
HFN0277-000 FERRITE CORE 2 HOLE HF Laird-Signal Integrity Products	3,079	-	RFQ	Datasheet	-	Bulk	Active	Multi-Hole (2)	-	HF	-	-	-	Ungapped	-	100	-	-	-	-	-	Uncoated	0.244" (6.20mm)	0.277" (7.04mm)	0.160" (4.06mm)
B64290P0036X046 R4/2.4/1.6 T46 TOROID EPCOS - TDK Electronics	4,247	-	RFQ	Datasheet	B64290	Bag	Obsolete	Toroid	R 4 x 2.4 x 1.6	T46	0.164" (4.17mm)	2.45 µH	±30%	Ungapped	-	15000	7.7	9.63	1.25	-	12.0	Parylene	0.069" (1.75mm)	-	-
0R42510EC E-CORE Magnetics, a division of Spang & Co.	3,002	-	RFQ	Datasheet	-	Bulk	Active	E	-	R	-	1.767 µH	-	Ungapped	-	2300	-	49.0	39.5	37.0	1930.0	Uncoated	0.380" (9.65mm)	1.000" (25.40mm)	0.250" (6.35mm)
0F41506TC TOROID UNCOATED Magnetics, a division of Spang & Co.	1,269	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	F	0.520" (13.20mm)	1.334 µH	±20%	Ungapped	-	3000	-	30.6	11.2	-	343.0	Uncoated	0.156" (3.96mm)	-	-

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.