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
ZM41406TC TOROID EPOXY COATED Magnetics, a division of Spang & Co.	2,041	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	M	0.530" (13.45mm)	10.974 µH	±30%	Ungapped	-	15000	-	29.5	17.2	-	507.0	Epoxy	0.276" (7.00mm)	-	-
0077335A7 KOOL MU 075 PERM BLACK 130 SIZE Magnetics, a division of Spang & Co.	4,568	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	0.440" (11.18mm)	32 nH	±12%	Ungapped	-	75	-	26.9	9.06	-	244.0	Uncoated	0.156" (3.96mm)	-	-
0077131A7 KOOL MU 060 PERM BLACK 130 SIZE Magnetics, a division of Spang & Co.	4,223	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	0.440" (11.18mm)	26 nH	±12%	Ungapped	-	60	-	26.8	9.06	-	243.0	Uncoated	0.156" (3.96mm)	-	-
0077334A7 KOOL MU 090 PERM BLACK 130 SIZE Magnetics, a division of Spang & Co.	2,408	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	0.440" (11.18mm)	38 nH	±12%	Ungapped	-	90	-	26.9	9.06	-	244.0	Uncoated	0.156" (3.96mm)	-	-
0R42526EC E CORE Magnetics, a division of Spang & Co.	1,684	-	RFQ	Datasheet	-	Bulk	Active	E	-	R	-	2.8 µH	-	Ungapped	-	2300	-	57.5	78.4	78.4	4500.0	Uncoated	0.504" (12.80mm)	0.984" (25.00mm)	0.433" (11.00mm)
0J41106UC U-SHAPE CORE Magnetics, a division of Spang & Co.	4,529	-	RFQ	Datasheet	-	Bulk	Active	U	-	J	-	1.773 µH	-	Ungapped	-	5000	-	29.2	12.0	11.5	350.0	Uncoated	0.165" (4.20mm)	0.427" (10.85mm)	0.248" (6.30mm)
0W40907TC TOROID UNCOATED Magnetics, a division of Spang & Co.	1,968	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	W	0.375" (9.53mm)	7.53 µH	±30%	Ungapped	-	10000	-	22.7	13.7	-	310.0	Uncoated	0.280" (7.11mm)	-	-
ZR41303TC TOROID GREY COATED Magnetics, a division of Spang & Co.	3,256	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	R	0.525" (13.34mm)	680 nH	±25%	Ungapped	-	2300	-	31.7	7.1	-	226.0	Epoxy	0.145" (3.69mm)	-	-
YJ40907TC TOROID-PARYLENE COATED Magnetics, a division of Spang & Co.	3,779	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	J	0.388" (9.86mm)	3.765 µH	±20%	Ungapped	-	5000	-	22.7	13.7	-	310.0	Parylene	0.290" (7.37mm)	-	-
CL41805EC PE CS CORE Magnetics, a division of Spang & Co.	4,585	-	RFQ	Datasheet	-	Bulk	Active	Planar E	-	L	-	1.5 µH	±25%	Ungapped	-	900	-	24.2	40.1	39.9	972.0	Uncoated	0.157" (4.00mm)	0.709" (18.00mm)	0.394" (10.00mm)

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.