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
CMC030020010H NANOCRYSTAL CORE TOROID 59.3UH Magnetics, a division of Spang & Co.	191	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Nanocrystalline	1.181" (30.00mm)	59.3 µH	±30%	Ungapped	-	80000	-	78.5	41.0	-	-	Polyester	0.394" (10.00mm)	-	-
E58/11/38-3F36 FERRITE CORE E 3F36 Ferroxcube	115	-	RFQ	Datasheet	-	Bulk	Active	E	E 58 x 11 x 38	3F36	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.413" (10.50mm)	2.299" (58.40mm)	1.500" (38.10mm)
C055025A2 MPP 300 PERM GREY 030 SIZE Magnetics, a division of Spang & Co.	761	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	MPP	0.335" (8.51mm)	124 nH	±8%	Ungapped	-	300	-	17.9	5.99	-	107.0	Coated	0.150" (3.81mm)	-	-
B65811F0630J048 FERRITE CORE RM 630NH N48 2PCS EPCOS - TDK Electronics	1,197	-	RFQ	Datasheet	RM8	Box	Active	RM	RM 8	N48	-	630 nH	±5%	Gapped	338.0	-	0.68	35.1	52.0	-	1825.0	Uncoated	0.324" (8.25mm)	0.913" (23.20mm)	0.433" (11.00mm)
B66291K0000X187 FERRITE CORE I N87 1PC EPCOS - TDK Electronics	780	-	RFQ	Datasheet	I43/4/28	Bulk	Active	I	I 43 x 4 x 28	N87	-	-	-	Ungapped	-	-	-	-	-	-	-	Uncoated	0.161" (4.10mm)	1.700" (43.20mm)	1.098" (27.90mm)
B66395G0000X187 FERRITE CORE ETD N87 1PC EPCOS - TDK Electronics	287	-	RFQ	Datasheet	ETD54/28/19	Box	Active	ETD	ETD 54 x 28 x 19	N87	-	-	-	Ungapped	-	-	-	-	-	-	-	Uncoated	1.094" (27.80mm)	2.156" (54.50mm)	0.760" (19.30mm)
5977002721 FERRITE CORE TOROID 2.25UH 77 Fair-Rite Products Corp.	123	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	77	1.449" (36.80mm)	2.25 µH	-30%, +25%	Ungapped	-	2000	1.1361	89.1	78.4	-	6991.0	Plastic	0.539" (13.70mm)	-	-
C058350A2 FERRITE CORE TOROID 105NH HI FLX Magnetics, a division of Spang & Co.	477	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	High Flux	0.958" (24.33mm)	105 nH	±8%	Ungapped	-	125	-	58.8	38.8	-	2280.0	Coated	0.380" (9.65mm)	-	-
B65813N0630A048 FERRITE CORE RM 630NH N48 2PCS EPCOS - TDK Electronics	2,245	-	RFQ	Datasheet	RM10	Box	Active	RM	RM 10	N48	-	630 nH	±3%	Gapped	254.0	-	0.5	42.0	83.0	-	3490.0	Uncoated	0.368" (9.35mm)	1.122" (28.50mm)	0.531" (13.50mm)
B64290L0674X830 FERRITE CORE TOROID 5.75UH N30 EPCOS - TDK Electronics	785	-	RFQ	Datasheet	TX36/23/15	Tray	Active	Toroid	-	N30	1.476" (37.50mm)	5.75 µH	±25%	Ungapped	-	4300	0.94	89.65	95.89	-	8597.0	Epoxy	0.638" (16.20mm)	-	-
U67/27/14-3C91 FERRITE CORE U 3C91 Ferroxcube	123	-	RFQ	Datasheet	-	Bulk	Active	U	U 67 x 27 x 14	3C91	-	-	-	-	-	-	-	-	-	-	-	Uncoated	1.063" (27.00mm)	2.650" (67.30mm)	0.563" (14.30mm)
B66335G1000X187 FERRITE CORE E N87 1PC EPCOS - TDK Electronics	105	-	RFQ	Datasheet	E55/28/21	Box	Active	E	E 55 x 28 x 21	N87	-	-	-	Gapped	-	-	-	-	-	-	-	Uncoated	1.094" (27.80mm)	2.165" (55.00mm)	0.827" (21.00mm)
0P45716UC FERRITE CORE UR 3.061UH P Magnetics, a division of Spang & Co.	234	-	RFQ	Datasheet	-	Bulk	Active	UR	-	P	-	3.061 µH	-	Ungapped	-	2500	-	163.0	171.0	-	27900.0	Uncoated	1.126" (28.60mm)	2.270" (57.65mm)	0.626" (15.90mm)
B65847A0000R030 FERRITE CORE EP 6.7UH N30 2PCS EPCOS - TDK Electronics	712	-	RFQ	Datasheet	EP20	Box	Active	EP	EP 20	N30	-	6.7 µH	-20%, +30%	Ungapped	2730.0	5200	0.51	40.0	78.0	60.0	3120.0	Uncoated	0.425" (10.80mm)	0.965" (24.50mm)	0.602" (15.30mm)
T60006L2030W358 FERRITE CORE TOROID 15.5UH VACUUMSCHMELZE	5,443	-	RFQ	Datasheet	-	Box	Active	Toroid	-	-	1.299" (33.00mm)	15.5 µH	-	Ungapped	-	-	-	78.5	40.0	-	-	Uncoated	0.492" (12.50mm)	-	-
0070894A7 KOOL MU ULTRA 060 PERM BLACK Magnetics, a division of Spang & Co.	265	-	RFQ	Datasheet	-	Tray	Active	Toroid	-	Kool Mµ	1.060" (26.92mm)	78 nH	±8%	Ungapped	-	60	-	63.5	65.4	-	4150.0	Uncoated	0.440" (11.18mm)	-	-
B65813N0400A048 FERRITE CORE RM 400NH N48 2PCS EPCOS - TDK Electronics	773	-	RFQ	Datasheet	RM10	Box	Active	RM	RM 10	N48	-	400 nH	±3%	Gapped	161.0	-	0.5	42.0	83.0	-	3490.0	Uncoated	0.368" (9.35mm)	1.122" (28.50mm)	0.531" (13.50mm)
PQ35/35-3C96 FERRITE CORE PQ 3C96 2PC SET Ferroxcube	333	-	RFQ	Datasheet	-	Bulk	Active	PQ	PQ 35 x 35	3C96	-	-	±25%	Ungapped	1700.0	-	0.454	86.1	190.0	162.0	16300.0	Uncoated	1.366" (34.70mm)	1.421" (36.10mm)	1.024" (26.00mm)
B65807N0040A001 FERRITE CORE RM 40NH K1 2PCS EPCOS - TDK Electronics	2,032	-	RFQ	Datasheet	RM6	Box	Active	RM	RM 6	K1	-	40 nH	±3%	Gapped	27.4	80	0.86	26.9	31.3	-	840.0	Uncoated	0.246" (6.25mm)	0.701" (17.90mm)	0.323" (8.20mm)
C055848A2 FERRITE CORE TOROID 32NH MPP Magnetics, a division of Spang & Co.	1,331	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	MPP	0.800" (20.32mm)	32 nH	±8%	Ungapped	-	60	-	50.9	22.1	-	1.12	Coated	0.250" (6.35mm)	-	-

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.