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
0P42526EC E CORE Magnetics, a division of Spang & Co.	1,560	-	RFQ	Datasheet	-	Bulk	Active	E	-	P	-	3.784 µH	-	Ungapped	-	2500	-	57.5	78.4	78.4	4500.0	Uncoated	0.504" (12.80mm)	0.984" (25.00mm)	0.433" (11.00mm)
0P41106UC U SHAPE CORE Magnetics, a division of Spang & Co.	3,769	-	RFQ	Datasheet	-	Bulk	Active	U	-	P	-	914 nH	-	Ungapped	-	2500	-	29.2	12.0	11.5	350.0	Uncoated	0.165" (4.20mm)	0.427" (10.85mm)	0.248" (6.30mm)
0077042A7 KOOL MU 026 PERM BLACK 040 SIZE Magnetics, a division of Spang & Co.	1,949	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mµ	0.400" (10.15mm)	14 nH	±8%	Ungapped	-	26	-	23.0	9.56	-	220.0	Uncoated	0.156" (3.96mm)	-	-
0077041A7 KOOL MU 060 PERM BLACK 040 SIZE Magnetics, a division of Spang & Co.	3,443	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	0.400" (10.15mm)	32 nH	±12%	Ungapped	-	60	-	23.0	9.57	-	220.0	Uncoated	0.156" (3.96mm)	-	-
0077844A7 KOOL MU 090 PERM BLACK 040 SIZE Magnetics, a division of Spang & Co.	2,369	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	0.400" (10.15mm)	48 nH	±12%	Ungapped	-	90	-	23.0	9.57	-	220.0	Uncoated	0.156" (3.96mm)	-	-
0077845A7 KOOL MU 075 PERM BLACK 040 SIZE Magnetics, a division of Spang & Co.	4,518	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mµ	0.400" (10.15mm)	40 nH	±12%	Ungapped	-	75	-	23.0	9.57	-	220.0	Uncoated	0.156" (3.96mm)	-	-
ZJ41206TC TOROID GREY COATED Magnetics, a division of Spang & Co.	1,849	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	J	0.525" (13.34mm)	5.64 µH	±20%	Ungapped	-	5000	-	25.0	22.0	-	550.0	Epoxy	0.272" (6.91mm)	-	-
FF42216EC E-CORE - FLAT BACK Magnetics, a division of Spang & Co.	3,303	-	RFQ	Datasheet	-	Bulk	Active	Planar E	-	F	-	6.131 µH	±25%	Ungapped	-	3000	-	32.5	78.5	76.0	2550.0	Uncoated	0.225" (5.72mm)	0.858" (21.80mm)	0.622" (15.80mm)
0R42520EC E CORE Magnetics, a division of Spang & Co.	4,989	-	RFQ	Datasheet	-	Bulk	Active	E	-	R	-	3.533 µH	-	Ungapped	-	2300	-	48.0	78.4	76.8	3760.0	Uncoated	0.380" (9.65mm)	1.000" (25.40mm)	0.500" (12.70mm)
0P42929EC ETD CORE Magnetics, a division of Spang & Co.	1,881	-	RFQ	Datasheet	-	Bulk	Active	ETD	-	P	-	2.843 µH	-	Ungapped	-	2500	-	72.0	76.0	710.0	5470.0	Uncoated	0.622" (15.80mm)	1.205" (30.60mm)	0.386" (9.80mm)

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.