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
0077211A7 KOOL MU 075 PERM BLACK 206 SIZE Magnetics, a division of Spang & Co.	1,200	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	0.800" (20.32mm)	41 nH	±8%	Ungapped	-	75	-	50.9	22.1	-	1120.0	Uncoated	0.250" (6.35mm)	-	-
0P44119EC EC CORE Magnetics, a division of Spang & Co.	1,795	-	RFQ	Datasheet	-	Bulk	Active	EC	-	P	-	3.2 µH	-	Ungapped	-	2500	-	89.3	121.0	106.0	10800.0	Uncoated	0.768" (19.50mm)	1.598" (40.60mm)	0.457" (11.60mm)
SF41408UG ROUND-SLAB CORE W/HOLE Magnetics, a division of Spang & Co.	4,136	-	RFQ	Datasheet	-	Bulk	Active	P	-	F	0.551" (14.00mm)	2.274 µH	±25%	Ungapped	-	3000	-	20.2	23.0	19.2	460.0	Uncoated	0.167" (4.25mm)	-	-
0P41811UG POT CORE Magnetics, a division of Spang & Co.	4,099	-	RFQ	Datasheet	-	Bulk	Active	P	-	P	0.709" (18.00mm)	3.333 µH	-	Ungapped	-	2500	-	25.8	43.3	36.0	1120.0	Uncoated	0.209" (5.30mm)	-	-
0W42109TC TOROID-UNCOATED Magnetics, a division of Spang & Co.	2,135	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	W	0.811" (20.60mm)	8.4 µH	±30%	Ungapped	-	10000	-	50.3	34.4	-	1733.0	Uncoated	0.350" (8.90mm)	-	-
RF41510UG R-RM DESIGN Magnetics, a division of Spang & Co.	4,615	-	RFQ	Datasheet	-	Bulk	Active	RM	-	F	-	2.1 µH	±25%	Ungapped	-	3000	-	21.4	21.0	13.9	449.0	Uncoated	0.205" (5.20mm)	0.575" (14.60mm)	0.260" (6.60mm)
0P43618EC E-CORE Magnetics, a division of Spang & Co.	4,005	-	RFQ	Datasheet	-	Bulk	Active	Planar E	-	P	-	7.09 µH	-	Ungapped	-	2500	-	42.4	135.0	135.0	5750.0	Uncoated	0.250" (6.35mm)	1.400" (35.56mm)	0.701" (17.80mm)
0P43618IC FERRITE I-CORE Magnetics, a division of Spang & Co.	2,520	-	RFQ	Datasheet	-	Bulk	Active	I	-	P	-	7.736 µH	-	Ungapped	-	2500	-	37.4	135.0	135.0	5060.0	Uncoated	0.145" (3.68mm)	1.400" (35.56mm)	0.701" (17.80mm)
0P41408UG POT CORE Magnetics, a division of Spang & Co.	3,104	-	RFQ	Datasheet	-	Bulk	Active	P	-	P	0.563" (14.30mm)	2.24 µH	-	Ungapped	-	2500	-	19.8	25.1	19.8	495.0	Uncoated	0.165" (4.20mm)	-	-
0P40704UG POT CORE Magnetics, a division of Spang & Co.	2,403	-	RFQ	Datasheet	-	Bulk	Active	P	-	P	0.285" (7.24mm)	964 nH	-	Ungapped	-	2500	-	9.9	7.0	5.9	69.0	Uncoated	0.082" (2.08mm)	-	-

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.