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
ZW41506TC TOROID GREY COATED Magnetics, a division of Spang & Co.	1,728	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	W	0.550" (13.97mm)	4.59 µH	±30%	Ungapped	-	10000	-	30.6	11.2	-	343.0	Epoxy	0.181" (4.60mm)	-	-
CR41805IC I-CORE WITH CLIP SLOTS Magnetics, a division of Spang & Co.	2,189	-	RFQ	Datasheet	-	Bulk	Active	I	-	R	-	3.606 µH	-	Ungapped	-	2300	-	20.3	39.5	35.9	830.0	Uncoated	0.094" (2.40mm)	0.709" (18.00mm)	0.394" (10.00mm)
FR41805EC E-CORE WITH FLAT BACK Magnetics, a division of Spang & Co.	2,507	-	RFQ	Datasheet	-	Bulk	Active	Planar E	-	R	-	3.244 µH	-	Ungapped	-	2300	-	24.2	40.1	39.9	972.0	Uncoated	0.157" (4.00mm)	0.709" (18.00mm)	0.394" (10.00mm)
FR41805IC I-CORE WITH FLAT BACK Magnetics, a division of Spang & Co.	3,093	-	RFQ	Datasheet	-	Bulk	Active	Planar E/I	-	R	-	3.641 µH	-	Ungapped	-	2300	-	20.3	40.1	39.9	813.0	Uncoated	0.094" (2.40mm)	0.709" (18.00mm)	0.394" (10.00mm)
0M41206TC TOROID UNCOATED Magnetics, a division of Spang & Co.	3,143	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	M	0.500" (12.70mm)	17.163 µH	±30%	Ungapped	-	15000	-	25.0	22.0	-	550.0	Uncoated	0.250" (6.35mm)	-	-
0J42510EC E-SHAPE CORE Magnetics, a division of Spang & Co.	2,403	-	RFQ	Datasheet	-	Bulk	Active	E	-	J	-	3.7 µH	-	Ungapped	-	5000	-	49.0	39.5	37.0	1930.0	Uncoated	0.380" (9.65mm)	1.000" (25.40mm)	0.250" (6.35mm)
0W41407TC TOROID UNCOATED Magnetics, a division of Spang & Co.	1,590	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	W	0.500" (12.70mm)	5.43 µH	±30%	Ungapped	-	10000	-	29.5	12.9	-	381.0	Uncoated	0.188" (4.78mm)	-	-
0F43007EC E-SHAPE CORE Magnetics, a division of Spang & Co.	3,740	-	RFQ	Datasheet	-	Bulk	Active	E	-	F	-	2.7 µH	±25%	Ungapped	-	3000	-	67.0	60.0	49.0	4000.0	Uncoated	0.591" (15.00mm)	1.213" (30.80mm)	0.287" (7.30mm)
0F42515EC E-SHAPE CORE Magnetics, a division of Spang & Co.	3,306	-	RFQ	Datasheet	-	Bulk	Active	E	-	F	-	1.5 µH	±25%	Ungapped	-	3000	-	73.5	40.1	39.7	2950.0	Uncoated	0.626" (15.90mm)	1.000" (25.40mm)	0.250" (6.35mm)
YM41003TC TOROID PARYLENE COATED Magnetics, a division of Spang & Co.	1,195	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	M	0.393" (9.99mm)	6.644 µH	±30%	Ungapped	-	15000	-	20.7	7.3	-	151.0	Parylene	0.138" (3.50mm)	-	-

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.