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
ERK4013E026L224 KOOL MU 026 PERM EER 4013 SIZE Magnetics, a division of Spang & Co.	2,486	-	RFQ	Datasheet	-	Bulk	Active	EER	-	Kool Mu	-	59 nH	±8%	Ungapped	-	26	-	111.3	149.1	-	16600.0	Uncoated	0.882" (22.40mm)	1.575" (40.00mm)	0.524" (13.30mm)
ERK4013E060L224 KOOL MU 060 PERM EER 4013 SIZE Magnetics, a division of Spang & Co.	3,272	-	RFQ	Datasheet	-	Bulk	Active	EER	-	Kool Mu	-	111 nH	-	Ungapped	-	60	-	111.3	149.1	-	16600.0	Uncoated	0.882" (22.40mm)	1.575" (40.00mm)	0.524" (13.30mm)
ERK4013E040L224 KOOL MU 040 PERM EER 4013 SIZE Magnetics, a division of Spang & Co.	3,903	-	RFQ	Datasheet	-	Bulk	Active	EER	-	Kool Mu	-	81 nH	-	Ungapped	-	40	-	111.3	149.1	-	16600.0	Uncoated	0.882" (22.40mm)	1.575" (40.00mm)	0.524" (13.30mm)
0077935A7HT15 KOOL MU 075 PERM BLACK 930 SIZE Magnetics, a division of Spang & Co.	3,513	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	1.060" (26.92mm)	118 nH	±8%	Ungapped	-	75	-	63.5	82.1	-	5210.0	Uncoated	0.551" (14.00mm)	-	-
0077548A7HT08 KOOL MU 125 PERM BLACK 548 SIZE Magnetics, a division of Spang & Co.	4,165	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	1.291" (32.80mm)	86 nH	±8%	Ungapped	-	125	-	81.4	44.5	-	3620.0	Uncoated	0.285" (7.24mm)	-	-
FP44310IC I-CORE - FLAT BACKS Magnetics, a division of Spang & Co.	1,285	-	RFQ	Datasheet	-	Bulk	Active	Planar E/I	-	P	-	10.13 µH	-	Ungapped	-	2500	-	50.4	229.0	229.0	11500.0	Uncoated	0.161" (4.10mm)	1.701" (43.20mm)	1.098" (27.90mm)
0077590A7 KOOL MU 075 PERM BLACK 585 SIZE Magnetics, a division of Spang & Co.	4,933	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	1.350" (34.29mm)	47 nH	±8%	Ungapped	-	75	-	89.5	46.4	-	4150.0	Uncoated	0.350" (8.90mm)	-	-
0077591A7 KOOL MU 040 PERM BLACK 585 SIZE Magnetics, a division of Spang & Co.	3,808	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	1.350" (34.29mm)	25 nH	±8%	Ungapped	-	40	-	89.5	46.4	-	4150.0	Uncoated	0.350" (8.90mm)	-	-
0077587A7 KOOL MU 026 PERM BLACK 585 SIZE Magnetics, a division of Spang & Co.	3,243	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	1.350" (34.29mm)	16 nH	±8%	Ungapped	-	26	-	89.5	46.4	-	4150.0	Uncoated	0.350" (8.90mm)	-	-
0V42213UG POT CORE Magnetics, a division of Spang & Co.	3,790	-	RFQ	Datasheet	-	Bulk	Active	P	-	V	0.866" (22.00mm)	4.65 µH	±25%	Ungapped	-	2300	-	31.5	63.4	50.9	2000.0	Uncoated	0.264" (6.70mm)	-	-

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.