Ferrite Cores

Compare the current Ferrite Cores Magnetics - Transformer, Inductor Components selection by manufacturer, stock status, datasheet and technical parameters. Use these details to narrow the list to parts that match your design, maintenance or purchasing requirements.

For a specific MPN, package, electrical rating or quantity requirement, send the details to EGOO. We can help confirm availability, quotation and alternative sourcing options.

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
0070073A7 KOOL MU ULTRA 040 PERM BLACK Magnetics, a division of Spang & Co.	1,638	-	RFQ	Datasheet	-	Tray	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
0R49928EC FERRITE CORE E 6.227UH Magnetics, a division of Spang & Co.	2,394	-	RFQ	Datasheet	-	Bulk	Active	E	-	-	-	6.227 µH	-	Ungapped	-	2300	-	274.0	738.0	692.0	202000.0	Uncoated	2.339" (59.40mm)	3.949" (100.30mm)	1.083" (27.50mm)
0055257A2 FERRITE CORE TOROID 19NH MPP Magnetics, a division of Spang & Co.	3,064	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	MPP	1.605" (40.77mm)	19 nH	±8%	Ungapped	-	14	-	98.4	107.0	-	10600.0	Coated	0.605" (15.37mm)	-	-
0074736A7 X FLUX ULTRA 040 PERM BROWN Magnetics, a division of Spang & Co.	4,661	-	RFQ	Datasheet	-	Tray	Active	Toroid	-	X FLUX ULTRA	2.917" (74.09mm)	136 nH	±8%	Ungapped	-	40	-	184.0	497.0	-	91400.0	Uncoated	1.378" (35.00mm)	-	-
0074102A7 X FLUX ULTRA 026 PERM BROWN 102 Magnetics, a division of Spang & Co.	1,451	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	X FLUX ULTRA	4.000" (101.60mm)	48 nH	±8%	Ungapped	-	26	-	243.0	358.0	-	87000.0	Uncoated	0.650" (16.51mm)	-	-
0074099A7 X FLUX ULTRA 060 PERM BROWN 102 Magnetics, a division of Spang & Co.	3,550	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	X FLUX ULTRA	4.000" (101.60mm)	111 nH	±8%	Ungapped	-	60	-	243.0	358.0	-	87000.0	Uncoated	0.650" (16.51mm)	-	-
0079097A7 FERRITE CORE TOROID 35NH KOOL MU Magnetics, a division of Spang & Co.	1,050	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu MAX	4.055" (103.00mm)	35 nH	±8%	Ungapped	-	19	-	243.0	358.0	-	86900.0	Coated	0.705" (17.91mm)	-	-
0079735A7 FERRITE CORE TOROID 88NH KOOL MU Magnetics, a division of Spang & Co.	2,203	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu MAX	2.961" (75.21mm)	88 nH	±8%	Ungapped	-	26	-	184.0	497.0	-	91400.0	Coated	1.414" (35.92mm)	-	-
0R49740TC TOROID Magnetics, a division of Spang & Co.	4,385	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	R	5.512" (140.00mm)	3.2 µH	±25%	Ungapped	-	2300	-	381.5	422.3	-	161086.0	Uncoated	0.984" (25.00mm)	-	-
MACC0063 FERRITE CORE U AMORPHOUS Magnetics, a division of Spang & Co.	3,309	-	RFQ	Datasheet	-	Bulk	Active	U	-	Amorphous	-	-	-	Ungapped	-	-	-	232.0	440.0	-	-	Uncoated	2.067" (52.50mm)	2.106" (53.50mm)	1.181" (30.00mm)

Ferrite Cores FAQ

How can I narrow the current Ferrite Cores selection?

Use the available manufacturer and technical filters to compare matching parts by specifications, stock status, pricing and datasheet information.

Can EGOO help source hard-to-find or obsolete Ferrite Cores parts?

Yes. Send the manufacturer part number and required quantity to our sourcing team for availability, lead-time and alternative sourcing support.

Can I request a quotation for a BOM or small-batch requirement?

Yes. EGOO supports BOM sourcing, prototype quantities and small-batch purchasing. Provide your part list and quantities for a quotation review.

What information should I provide when requesting a quote?

Please provide the target part number, manufacturer, quantity and any required date code, package or delivery requirements so our team can respond more accurately.