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
0F42908TC TOROID UNCOATED Magnetics, a division of Spang & Co.	3,928	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	F	1.142" (29.00mm)	1.902 µH	±20%	Ungapped	-	3000	-	73.2	37.0	-	2679.0	Uncoated	0.293" (7.43mm)	-	-
0F43517EC EC CORE Magnetics, a division of Spang & Co.	1,699	-	RFQ	Datasheet	-	Bulk	Active	EC	-	F	-	3 µH	±25%	Ungapped	-	3000	-	77.4	84.3	71.0	6530.0	Uncoated	0.681" (17.30mm)	1.358" (34.50mm)	0.374" (9.50mm)
ZW40907TC TOROID GREY COATED Magnetics, a division of Spang & Co.	4,004	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	W	0.405" (10.29mm)	7.53 µH	±30%	Ungapped	-	10000	-	22.7	13.7	-	310.0	Epoxy	0.306" (7.78mm)	-	-
RP41510UG R-RM DESIGN Magnetics, a division of Spang & Co.	4,259	-	RFQ	Datasheet	-	Bulk	Active	RM	-	P	-	1.867 µH	-	Ungapped	-	2500	-	21.4	21.0	13.9	449.0	Uncoated	0.205" (5.20mm)	0.575" (14.60mm)	0.260" (6.60mm)
0077294A7 KOOL MU 090 PERM BLACK 290 SIZE Magnetics, a division of Spang & Co.	1,130	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	0.380" (9.65mm)	48 nH	±12%	Ungapped	-	90	-	21.8	9.45	-	206.0	Uncoated	0.156" (3.96mm)	-	-
0077291A7 KOOL MU 060 PERM BLACK 290 SIZE Magnetics, a division of Spang & Co.	3,902	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	0.380" (9.65mm)	32 nH	±12%	Ungapped	-	60	-	21.8	9.45	-	206.0	Uncoated	0.156" (3.96mm)	-	-
0077280A7 KOOL MU 125 PERM BLACK 280 SIZE Magnetics, a division of Spang & Co.	3,121	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	0.380" (9.65mm)	53 nH	±12%	Ungapped	-	125	-	21.8	7.52	-	164.0	Uncoated	0.125" (3.18mm)	-	-
0077885A7 KOOL MU 075 PERM BLACK 280 SIZE Magnetics, a division of Spang & Co.	2,897	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	0.380" (9.65mm)	32 nH	±12%	Ungapped	-	75	-	21.8	7.52	-	164.0	Uncoated	0.125" (3.18mm)	-	-
0077884A7 KOOL MU 090 PERM BLACK 280 SIZE Magnetics, a division of Spang & Co.	4,124	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	0.380" (9.65mm)	38 nH	±12%	Ungapped	-	90	-	21.8	7.52	-	164.0	Uncoated	0.125" (3.18mm)	-	-
0077414A7 KOOL MU 090 PERM BLACK 410 SIZE Magnetics, a division of Spang & Co.	2,929	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	0.270" (6.86mm)	50 nH	±12%	Ungapped	-	90	-	16.5	7.25	-	120.0	Uncoated	0.200" (5.08mm)	-	-

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.