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
0M41005TC TOROID UNCOATED Magnetics, a division of Spang & Co.	1,743	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	M	0.375" (9.53mm)	9.988 µH	±30%	Ungapped	-	15000	-	20.7	10.9	-	227.0	Uncoated	0.188" (4.78mm)	-	-
0P41308EC ER CORE Magnetics, a division of Spang & Co.	4,302	-	RFQ	Datasheet	-	Bulk	Active	ER	-	P	-	1.8 µH	-	Ungapped	-	2500	-	17.5	19.9	19.2	348.0	Uncoated	0.112" (2.85mm)	0.504" (12.80mm)	0.343" (8.70mm)
0M40705TC TOROID UNCOATED Magnetics, a division of Spang & Co.	4,704	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	M	0.300" (7.62mm)	12.535 µH	±30%	Ungapped	-	15000	-	14.9	9.96	-	149.0	Uncoated	0.188" (4.78mm)	-	-
0R41009EC EFD CORE Magnetics, a division of Spang & Co.	1,860	-	RFQ	Datasheet	-	Bulk	Active	EFD	-	R	-	585 nH	-	Ungapped	-	2300	-	23.7	7.2	6.5	171.0	Uncoated	0.205" (5.20mm)	0.413" (10.50mm)	0.106" (2.70mm)
YC40503TC TOROID PARYLENE COATED Magnetics, a division of Spang & Co.	4,720	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	C	0.166" (4.22mm)	258 nH	±25%	Ungapped	-	900	-	9.21	2.1	-	19.3	Parylene	0.113" (2.87mm)	-	-
YJ41005TC TOROID-PARYLENE COATED Magnetics, a division of Spang & Co.	3,477	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	J	0.388" (9.86mm)	3.308 µH	±20%	Ungapped	-	5000	-	20.7	10.9	-	227.0	Parylene	0.196" (4.98mm)	-	-
YF40705TC TOROID-PARYLENE COATED Magnetics, a division of Spang & Co.	2,226	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	F	0.313" (7.95mm)	2.505 µH	±20%	Ungapped	-	3000	-	15.0	9.9	-	149.0	Parylene	0.196" (4.98mm)	-	-
0L41515EC EFD CORE Magnetics, a division of Spang & Co.	3,698	-	RFQ	Datasheet	-	Bulk	Active	EFD	-	L	-	330 nH	±25%	Ungapped	-	900	-	34.0	15.0	12.2	510.0	Uncoated	0.295" (7.50mm)	0.591" (15.00mm)	0.183" (4.65mm)
0L41212EC EFD CORE Magnetics, a division of Spang & Co.	2,812	-	RFQ	Datasheet	-	Bulk	Active	EFD	-	L	-	380 nH	±25%	Ungapped	-	900	-	28.5	11.4	10.7	325.0	Uncoated	0.244" (6.20mm)	0.492" (12.50mm)	0.138" (3.50mm)
0J41605TC TOROID UNCOATED Magnetics, a division of Spang & Co.	1,965	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	J	0.626" (15.90mm)	2.76 µH	±20%	Ungapped	-	5000	-	37.2	15.6	-	580.0	Uncoated	0.185" (4.70mm)	-	-

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.