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
0076382A7 KOOL MU HF 026 PERM BLACK 380 SI Magnetics, a division of Spang & Co.	3,047	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu HF	0.680" (17.27mm)	19 nH	-	Ungapped	-	26	-	41.4	23.2	-	960.0	Uncoated	0.250" (6.35mm)	-	-
HF42318UG DOUBLE SLAB CP W/HOLE Magnetics, a division of Spang & Co.	3,896	-	RFQ	Datasheet	-	Bulk	Active	EQ	-	F	-	3.35 µH	±25%	Ungapped	-	3000	-	40.1	53.4	40.7	2130.0	Uncoated	0.709" (18.00mm)	0.900" (22.86mm)	0.600" (15.25mm)
0F41814UG POT CORE Magnetics, a division of Spang & Co.	1,338	-	RFQ	Datasheet	-	Bulk	Active	P	-	F	0.709" (18.00mm)	3.35 µH	±25%	Ungapped	-	3000	-	29.3	42.6	36.0	1248.0	Uncoated	0.280" (7.11mm)	-	-
DF42318UG DOUBLE SLAB SCP Magnetics, a division of Spang & Co.	2,004	-	RFQ	Datasheet	-	Bulk	Active	EQ	-	F	-	3.8 µH	±25%	Ungapped	-	3000	-	39.9	58.0	40.7	2310.0	Uncoated	0.709" (18.00mm)	0.900" (22.86mm)	0.600" (15.25mm)
ZF42506TC TOROID GREY COATED Magnetics, a division of Spang & Co.	1,007	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	F	1.035" (26.29mm)	3.627 µH	±20%	Ungapped	-	3000	-	55.3	57.9	-	3199.0	Epoxy	0.400" (10.16mm)	-	-
0079381A7 KOOL MU MAX 060 PERM BLACK 380 S Magnetics, a division of Spang & Co.	2,022	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu MAX	0.680" (17.27mm)	43 nH	±8%	Ungapped	-	60	-	41.4	23.2	-	960.0	Uncoated	0.250" (6.35mm)	-	-
0079382A7 KOOL MU MAX 026 PERM BLACK 380 S Magnetics, a division of Spang & Co.	2,088	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu MAX	0.680" (17.27mm)	19 nH	±8%	Ungapped	-	26	-	41.4	23.2	-	960.0	Uncoated	0.250" (6.35mm)	-	-
FL43208EC E-CORE WITH FLAT BACK Magnetics, a division of Spang & Co.	3,377	-	RFQ	Datasheet	-	Bulk	Active	Planar E/I	-	L	-	2.8 µH	±25%	Ungapped	-	900	-	41.4	130.0	130.0	5380.0	Uncoated	0.250" (6.35mm)	1.250" (31.75mm)	0.800" (20.32mm)
0079387A7 KOOL MU MAX 019 PERM BLACK 380 S Magnetics, a division of Spang & Co.	1,621	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu MAX	0.680" (17.27mm)	14 nH	±8%	Ungapped	-	19	-	41.4	23.2	-	960.0	Uncoated	0.250" (6.35mm)	-	-
0079386A7 KOOL MU MAX 040 PERM BLACK 380 S Magnetics, a division of Spang & Co.	4,975	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu MAX	0.680" (17.27mm)	28 nH	±8%	Ungapped	-	40	-	41.4	23.2	-	960.0	Uncoated	0.250" (6.35mm)	-	-

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.