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
0077894A7HT15 FERRITE CORE TOROID 94NH KOOL MU Magnetics, a division of Spang & Co.	936	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	1.090" (27.69mm)	94 nH	±8%	Ungapped	-	60	-	63.5	82.1	-	5210.0	Coated	0.591" (15.00mm)	-	-
C055270A2 FERRITE CORE TOROID 103NH MPP Magnetics, a division of Spang & Co.	695	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	MPP	0.260" (6.60mm)	103 nH	±8%	Ungapped	-	125	-	13.6	9.2	-	125.0	Coated	0.188" (4.78mm)	-	-
0059120A2 FERRITE CORE TOROID 72NH EDGE Magnetics, a division of Spang & Co.	1,672	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Edge	0.653" (16.59mm)	72 nH	±8%	Ungapped	-	125	-	41.2	19.2	-	791.0	Coated	0.250" (6.35mm)	-	-
NR42819UG RM DESIGN SCP Magnetics, a division of Spang & Co.	840	-	RFQ	Datasheet	-	Bulk	Active	RM	-	R	-	4.047 µH	-	Ungapped	-	2300	-	44.6	96.6	89.1	4310.0	Uncoated	0.366" (9.30mm)	1.122" (28.50mm)	0.531" (13.50mm)
FR44310IC I-CORE - FLAT BACKS Magnetics, a division of Spang & Co.	713	-	RFQ	Datasheet	-	Bulk	Active	Planar E/I	-	R	-	9.541 µH	-	Ungapped	-	2300	-	50.4	229.0	229.0	11500.0	Uncoated	0.161" (4.10mm)	1.701" (43.20mm)	1.098" (27.90mm)
ZW42908TC FERRITE CORE TOROID 6.34UH W Magnetics, a division of Spang & Co.	630	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	W	1.187" (30.15mm)	6.34 µH	±30%	Ungapped	-	10000	-	73.2	36.0	-	2632.0	Epoxy	0.321" (8.15mm)	-	-
ZJ42908TC FERRITE CORE TOROID 3.17UH Magnetics, a division of Spang & Co.	570	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	-	1.177" (29.90mm)	3.17 µH	±20%	Ungapped	-	5000	-	73.2	36.0	-	3170.0	Epoxy	0.317" (8.05mm)	-	-
B65807J0400J087 FERRITE CORE RM N87 EPCOS - TDK Electronics	1,749	-	RFQ	Datasheet	RM6	Box	Active	RM	RM 6	N87	-	-	-	Gapped	-	2200	0.78	28.6	36.6	31.0	1050.0	Uncoated	0.246" (6.25mm)	0.701" (17.90mm)	0.323" (8.20mm)
5677261621 FERRITE Fair-Rite Products Corp.	461	-	RFQ	Datasheet	-	Bulk	Active	P	-	77	1.004" (25.50mm)	3.525 µH	-	Gapped	-	2000	0.4	37.6	93.0	76.0	3460.0	Uncoated	0.317" (8.05mm)	-	-
B65807J0315A087 FERRITE CORE RM N87 EPCOS - TDK Electronics	1,762	-	RFQ	Datasheet	RM6	Box	Active	RM	RM 6	N87	-	-	-	Gapped	-	2200	0.78	28.6	36.6	31.0	1050.0	Uncoated	0.246" (6.25mm)	0.701" (17.90mm)	0.323" (8.20mm)
0079351A7 FERRITE CORE TOROID 51NH KOOL MU Magnetics, a division of Spang & Co.	557	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu MAX	0.928" (23.57mm)	51 nH	±8%	Ungapped	-	60	-	58.8	38.8	-	2280.0	Coated	0.350" (8.90mm)	-	-
0077550A7 FERRITE CORE TOROID 28NH KOOL MU Magnetics, a division of Spang & Co.	160	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	1.325" (33.66mm)	28 nH	±8%	Ungapped	-	26	-	81.4	65.6	-	5340.0	Coated	0.450" (11.45mm)	-	-
0P45224EC FERRITE CORE EC 4.2UH P Magnetics, a division of Spang & Co.	969	-	RFQ	Datasheet	-	Bulk	Active	EC	-	P	-	4.2 µH	-	Ungapped	-	2500	-	105.0	180.0	141.0	18800.0	Uncoated	0.953" (24.20mm)	2.055" (52.20mm)	0.528" (13.40mm)
0076351A7 FERRITE CORE TOROID 51NH KOOL MU Magnetics, a division of Spang & Co.	341	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu HF	0.958" (24.33mm)	51 nH	±8%	Ungapped	-	60	-	58.8	38.8	-	2280.0	Coated	0.380" (9.65mm)	-	-
B66329G0250X127 FERRITE CORE E N27 1PC EPCOS - TDK Electronics	354	-	RFQ	Datasheet	E42/21/20	Box	Active	E	E 42 x 21 x 20	N27	-	-	-	Gapped	-	-	-	-	-	-	-	Uncoated	0.835" (21.20mm)	1.654" (42.00mm)	0.787" (20.00mm)
9478205002 FERRITE CORE E 78 SET Fair-Rite Products Corp.	131	-	RFQ	Datasheet	-	Bulk	Active	E	-	78	-	-	±25%	Ungapped	-	2300	30.0	52.9	190.0	180.0	10100.0	Uncoated	0.325" (8.26mm)	1.500" (38.10mm)	1.000" (25.40mm)
C058121A2 FERRITE CORE TOROID 35NH HIGH FL Magnetics, a division of Spang & Co.	494	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	High Flux	0.680" (17.27mm)	35 nH	±8%	Ungapped	-	60	-	41.2	19.2	-	791.0	Coated	0.280" (7.11mm)	-	-
C058270A2 FERRITE CORE TOROID 103NH HI FLX Magnetics, a division of Spang & Co.	2,260	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	High Flux	0.285" (7.24mm)	103 nH	±8%	Ungapped	-	125	-	13.6	9.2	-	125.0	Coated	0.213" (5.40mm)	-	-
0059848A2 FERRITE CORE TOROID 32NH EDGE Magnetics, a division of Spang & Co.	658	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Edge	0.830" (21.08mm)	32 nH	-	Ungapped	-	60	-	50.9	22.1	-	1120.0	Coated	0.280" (7.11mm)	-	-
B65811J0100A087 FERRITE CORE RM EPCOS - TDK Electronics	380	-	RFQ	Datasheet	RM8	Box	Active	RM	-	-	-	-	-	Gapped	-	-	-	-	-	-	-	Uncoated	-	-	-

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.