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
TN23/14/7-3E25 Ferrite Misc Ferroxcube	3,345	-	RFQ	Datasheet	-	Bulk	Active	Toroid	TN 23 x 14 x 7	3E25	0.933" (23.70mm)	3.82 µH	±25%	Ungapped	-	5500	1.81	55.8	30.9	-	1722.0	Nylon	0.295" (7.50mm)	-	-
TN23/14/7-3F3 Ferrite Misc Ferroxcube	2,547	-	RFQ	Datasheet	-	Bulk	Active	Toroid	TN 23 x 14 x 7	3F3	0.933" (23.70mm)	1.25 µH	±25%	Ungapped	-	1800	1.81	55.8	30.9	-	1722.0	Nylon	0.295" (7.50mm)	-	-
EP17-3C90 FERRITE CORE EP 3C90 2PC SET Ferroxcube	1,700	-	RFQ	Datasheet	-	Bulk	Active	EP	EP 17	3C90	-	-	-	Ungapped	-	-	0.87	29.5	33.7	25.5	999.0	Uncoated	0.661" (16.80mm)	0.709" (18.00mm)	0.433" (11.00mm)
EP17-3C91 FERRITE CORE EP 3C91 2PC SET Ferroxcube	3,859	-	RFQ	Datasheet	-	Bulk	Active	EP	EP 17	3C91	-	-	±25%	Ungapped	1860.0	-	0.87	29.5	33.7	25.5	999.0	Uncoated	0.661" (16.80mm)	0.709" (18.00mm)	0.433" (11.00mm)
EP17-3C94 Ferrite Misc Ferroxcube	1,195	-	RFQ	Datasheet	-	Bulk	Active	EP	EP 17	3C94	-	2.5 µH	±25%	Ungapped	1740.0	-	-	29.5	33.7	25.5	999.0	Uncoated	0.331" (8.40mm)	0.709" (18.00mm)	0.433" (11.00mm)
ER42/22/15-3C94 FERRITE CORE ER 3C94 Ferroxcube	1,399	-	RFQ	Datasheet	-	Bulk	Active	ER	ER 42 x 22 x 15	3C94	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.858" (21.80mm)	1.654" (42.00mm)	0.591" (15.00mm)
TX25/15/10-3C95 Ferrite Misc Ferroxcube	2,411	-	RFQ	Datasheet	-	Bulk	Active	Toroid	TX 25 x 15 x 10	3C95	0.994" (25.25mm)	-	-	Ungapped	-	-	1.23	60.2	48.9	-	2944.0	Epoxy	0.421" (10.40mm)	-	-
ER42/22/15-3C90 Ferrite Misc Ferroxcube	2,857	-	RFQ	Datasheet	-	Bulk	Active	ER	ER 42 x 22 x 15	3C90	-	-	-	Ungapped	1900.0	-	-	-	-	-	-	Uncoated	-	-	-
SJ41811UG ROUND-SLAB CORE W/HOLE Magnetics, a division of Spang & Co.	2,055	-	RFQ	Datasheet	-	Bulk	Active	PS	-	J	0.709" (18.00mm)	5.76 µH	-	Ungapped	-	5000	-	27.2	40.6	32.9	1110.0	Uncoated	0.209" (5.30mm)	-	-
0078352A7 X FLUX 026 PERM BROWN 350 SIZE Magnetics, a division of Spang & Co.	4,703	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	XFlux	0.928" (23.57mm)	22 nH	±8%	Ungapped	-	26	-	58.8	38.8	-	2280.0	Uncoated	0.350" (8.90mm)	-	-
C055279A2 MPP 147 PERM GREY 280 SIZE Magnetics, a division of Spang & Co.	4,352	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	MPP	0.405" (10.29mm)	63 nH	±8%	Ungapped	-	147	-	21.8	7.52	-	164.0	Coated	0.150" (3.81mm)	-	-
EQK3222E040L101 KOOL MU 040 PERM EQ 3222 SIZE Magnetics, a division of Spang & Co.	2,650	-	RFQ	Datasheet	-	Bulk	Active	EQ	-	Kool Mµ	-	129 nH	±8%	Ungapped	-	40	-	59.5	152.3	-	9100.0	Uncoated	0.398" (10.10mm)	1.260" (32.00mm)	0.866" (22.00mm)
0P44130UC U-SHAPE CORE Magnetics, a division of Spang & Co.	3,193	-	RFQ	Datasheet	-	Bulk	Active	UR	-	P	-	1.52 µH	-	Ungapped	-	2500	-	154.8	112.1	105.4	17346.0	Uncoated	1.201" (30.50mm)	1.645" (41.78mm)	0.470" (11.94mm)
0078351A7 X FLUX 060 PERM BROWN 350 SIZE Magnetics, a division of Spang & Co.	3,017	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	XFlux	0.928" (23.57mm)	51 nH	±8%	Ungapped	-	60	-	58.8	38.8	-	2280.0	Uncoated	0.350" (8.90mm)	-	-
C055278A2 MPP 160 PERM GREY 280 SIZE Magnetics, a division of Spang & Co.	4,507	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	MPP	0.405" (10.29mm)	58 nH	±8%	Ungapped	-	160	-	21.8	7.52	-	164.0	Coated	0.150" (3.81mm)	-	-
0078350A7 X FLUX 125 PERM BROWN 350 SIZE Magnetics, a division of Spang & Co.	4,482	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	XFlux	0.928" (23.57mm)	105 nH	±8%	Ungapped	-	125	-	58.8	38.8	-	2280.0	Uncoated	0.350" (8.90mm)	-	-
EQK3222E060L101 KOOL MU 060 PERM EQ 3222 SIZE Magnetics, a division of Spang & Co.	3,893	-	RFQ	Datasheet	-	Bulk	Active	EQ	-	Kool Mµ	-	194 nH	±8%	Ungapped	-	60	-	59.5	152.3	-	9100.0	Uncoated	0.398" (10.10mm)	1.260" (32.00mm)	0.866" (22.00mm)
0P42517EC ER CORE Magnetics, a division of Spang & Co.	1,018	-	RFQ	Datasheet	-	Bulk	Active	ER	-	P	-	6.05 µH	-	Ungapped	-	2500	-	33.8	91.8	86.4	82.0	Uncoated	0.220" (5.60mm)	0.984" (25.00mm)	0.709" (18.00mm)
0R42517EC ER CORE Magnetics, a division of Spang & Co.	4,411	-	RFQ	Datasheet	-	Bulk	Active	ER	-	R	-	5.7 µH	-	Ungapped	-	2300	-	33.8	91.8	86.4	82.0	Uncoated	0.220" (5.60mm)	0.984" (25.00mm)	0.709" (18.00mm)
EQK3222E026L101 KOOL MU 026 PERM EQ 3222 SIZE Magnetics, a division of Spang & Co.	2,001	-	RFQ	Datasheet	-	Bulk	Active	EQ	-	Kool Mu	-	100 nH	-	Ungapped	-	26	-	59.5	152.0	-	9100.0	Uncoated	0.390" (9.90mm)	1.260" (32.00mm)	0.866" (22.00mm)

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.