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
B66375G0500X187 FERRITE CORE E N87 EPCOS - TDK Electronics	1,997	-	RFQ	Datasheet	E80/38/20	Box	Active	E	E 80 x 38 x 20	N87	-	-	-	Gapped	-	2200	0.47	184.0	390.0	388.0	71800.0	Uncoated	1.516" (38.50mm)	3.150" (80.00mm)	0.795" (20.20mm)
0078615A7 FERRITE CORE TOROID 82NH XFLUX Magnetics, a division of Spang & Co.	1,372	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	XFlux	2.440" (61.98mm)	82 nH	±8%	Ungapped	-	26	-	144.0	360.0	-	51800.0	Coated	0.984" (25.00mm)	-	-
0077912A7 FERRITE CORE TOROID 57NH KOOL MU Magnetics, a division of Spang & Co.	100	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	3.063" (77.80mm)	57 nH	±8%	Ungapped	-	40	-	196.0	221.0	-	43400.0	Coated	0.625" (15.88mm)	-	-
0078912A7 FERRITE CORE TOROID 57NH XFLUX Magnetics, a division of Spang & Co.	1,408	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	XFlux	3.108" (78.94mm)	57 nH	±8%	Ungapped	-	40	-	196.0	221.0	-	43400.0	Coated	0.670" (17.02mm)	-	-
0078072A7 FERRITE CORE TOROID 143NH XFLUX Magnetics, a division of Spang & Co.	3,516	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	XFlux	2.677" (68.00mm)	143 nH	±8%	Ungapped	-	60	-	158.0	314.0	-	49700.0	Coated	0.787" (20.00mm)	-	-
00K9541B026 FERRITE CORE I KOOL MU Magnetics, a division of Spang & Co.	2,397	-	RFQ	Datasheet	-	Bulk	Active	I	-	Kool Mu	-	-	-	Ungapped	-	26	-	-	-	-	107200.0	Uncoated	1.614" (41.00mm)	3.740" (95.00mm)	1.083" (27.50mm)
0070189A7 KOOL MU ULTRA 040 PERM BLACK Magnetics, a division of Spang & Co.	4,952	-	RFQ	Datasheet	-	Tray	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
0074615A7 X FLUX ULTRA 026 PERM BROWN 620 Magnetics, a division of Spang & Co.	4,874	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	X FLUX ULTRA	2.440" (61.98mm)	82 nH	±8%	Ungapped	-	26	-	144.0	360.0	-	51800.0	Uncoated	0.984" (25.00mm)	-	-
0078616A7 FERRITE CORE TOROID 126NH XFLUX Magnetics, a division of Spang & Co.	2,697	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	XFlux	2.484" (63.09mm)	126 nH	±8%	Ungapped	-	40	-	144.0	360.0	-	51800.0	Coated	1.020" (25.91mm)	-	-
0070431A7 KOOL MU ULTRA 040 PERM BLACK Magnetics, a division of Spang & Co.	1,573	-	RFQ	Datasheet	-	Tray	Active	Toroid	-	Kool Mµ	1.840" (46.74mm)	93 nH	±8%	Ungapped	-	40	-	107.0	198.0	-	21300.0	Uncoated	0.710" (18.03mm)	-	-
0070440A7 KOOL MU ULTRA 026 PERM BLACK Magnetics, a division of Spang & Co.	2,164	-	RFQ	Datasheet	-	Tray	Active	Toroid	-	Kool Mµ	1.840" (46.74mm)	60 nH	±8%	Ungapped	-	26	-	107.0	198.0	-	21300.0	Uncoated	0.710" (18.03mm)	-	-
0074072A7 X FLUX ULTRA 060 PERM BROWN 070 Magnetics, a division of Spang & Co.	3,267	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	X FLUX ULTRA	2.677" (68.00mm)	150 nH	±8%	Ungapped	-	60	-	158.0	314.0	-	49700.0	Uncoated	0.787" (20.00mm)	-	-
B64290L0043X038 FERRITE CORE TOROID T38 EPCOS - TDK Electronics	2,795	-	RFQ	Datasheet	TX58.3/32/18	Box	Active	Toroid	-	T38	-	-	-	Gapped	-	10000	-	-	-	-	-	Epoxy	-	-	-
0079908A7 FERRITE CORE TOROID 37NH KOOL MU Magnetics, a division of Spang & Co.	2,744	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu MAX	3.108" (78.94mm)	37 nH	±8%	Ungapped	-	26	-	196.0	221.0	-	43400.0	Coated	0.670" (17.02mm)	-	-
MACC0010 FERRITE CORE U AMORPHOUS Magnetics, a division of Spang & Co.	2,129	-	RFQ	Datasheet	-	Bulk	Active	U	-	Amorphous	-	-	-	Ungapped	-	-	-	154.0	180.0	-	-	Uncoated	1.240" (31.50mm)	1.398" (35.50mm)	0.787" (20.00mm)
0078777A7 FERRITE CORE TOROID 205NH XFLUX Magnetics, a division of Spang & Co.	1,613	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	XFlux	3.108" (78.94mm)	205 nH	±8%	Ungapped	-	60	-	177.2	492.0	-	81500.0	Coated	1.057" (26.85mm)	-	-
0R49925IC I CORE Magnetics, a division of Spang & Co.	3,861	-	RFQ	Datasheet	-	Bulk	Active	I	-	R	-	5.707 µH	-	Ungapped	-	2300	-	245.0	645.0	645.0	158000.0	Uncoated	1.000" (25.40mm)	4.000" (101.60mm)	1.000" (25.40mm)
0070191A7 KOOL MU ULTRA 026 PERM BLACK Magnetics, a division of Spang & Co.	1,790	-	RFQ	Datasheet	-	Tray	Active	Toroid	-	Kool Mµ	2.250" (57.15mm)	60 nH	±8%	Ungapped	-	26	-	125.0	229.0	-	28600.0	Uncoated	0.600" (15.24mm)	-	-
0070192A7 KOOL MU ULTRA 060 PERM BLACK Magnetics, a division of Spang & Co.	2,868	-	RFQ	Datasheet	-	Tray	Active	Toroid	-	Kool Mµ	2.250" (57.15mm)	138 nH	±8%	Ungapped	-	60	-	125.0	229.0	-	28600.0	Uncoated	0.600" (15.24mm)	-	-
0076074A7 FERRITE CORE TOROID 65NH HIGH FL Magnetics, a division of Spang & Co.	1,425	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	High Flux	2.677" (68.00mm)	65 nH	±8%	Ungapped	-	26	-	158.0	314.0	-	49700.0	Coated	0.787" (20.00mm)	-	-

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.