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
0079750A7 KOOL MU MAX 019 PERM BLACK 725 S Magnetics, a division of Spang & Co.	4,407	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu MAX	1.990" (50.55mm)	56 nH	±8%	Ungapped	-	19	-	113.5	262.0	-	29700.0	Uncoated	0.820" (20.83mm)	-	-
0079733A7 KOOL MU MAX 040 PERM BLACK 725 S Magnetics, a division of Spang & Co.	1,401	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu MAX	1.990" (50.55mm)	116 nH	±8%	Ungapped	-	40	-	114.0	262.0	-	29700.0	Uncoated	0.820" (20.83mm)	-	-
0076727A7 KOOL MU HF 026 PERM BLACK 725 SI Magnetics, a division of Spang & Co.	4,784	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mµ	1.990" (50.55mm)	76 nH	±8%	Ungapped	-	26	-	113.5	262.0	-	29700.0	Uncoated	0.820" (20.83mm)	-	-
0076535A7 KOOL MU HF 026 PERM BLACK 540 SI Magnetics, a division of Spang & Co.	2,720	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mµ	2.126" (54.00mm)	45 nH	±8%	Ungapped	-	26	-	126.0	174.0	-	22000.0	Uncoated	0.567" (14.40mm)	-	-
0076537A7 KOOL MU HF 060 PERM BLACK 540 SI Magnetics, a division of Spang & Co.	2,248	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mµ	2.126" (54.00mm)	104 nH	±8%	Ungapped	-	60	-	126.0	174.0	-	22000.0	Uncoated	0.567" (14.40mm)	-	-
0079535A7 KOOL MU MAX 026 PERM BLACK 540 S Magnetics, a division of Spang & Co.	2,080	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mµ	2.126" (54.00mm)	45 nH	±8%	Ungapped	-	26	-	126.0	174.0	-	22000.0	Uncoated	0.567" (14.40mm)	-	-
0079537A7 KOOL MU MAX 060 PERM BLACK 540 S Magnetics, a division of Spang & Co.	2,657	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mµ	2.126" (54.00mm)	104 nH	±8%	Ungapped	-	60	-	126.0	174.0	-	22000.0	Uncoated	0.567" (14.40mm)	-	-
0059585A2 EDGE 125 PERM GREEN 585 SIZE Magnetics, a division of Spang & Co.	1,264	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Edge	1.350" (34.29mm)	79 nH	±8%	Ungapped	-	125	-	89.5	46.4	-	4150.0	Uncoated	0.350" (8.90mm)	-	-
EQH4128E026L199 HIGH FLUX 026 PERM EQ 4128 SIZE Magnetics, a division of Spang & Co.	4,925	-	RFQ	Datasheet	-	Bulk	Active	EQ	-	High Flux	-	68 nH	±8%	Ungapped	-	26	-	115.0	200.0	-	23000.0	Uncoated	0.783" (19.90mm)	1.634" (41.50mm)	1.102" (28.00mm)
EQH4128E040L199 HIGH FLUX 040 PERM EQ 4128 SIZE Magnetics, a division of Spang & Co.	3,609	-	RFQ	Datasheet	-	Bulk	Active	EQ	-	High Flux	-	100 nH	±8%	Ungapped	-	40	-	115.0	200.0	-	23000.0	Uncoated	0.783" (19.90mm)	1.634" (41.50mm)	1.102" (28.00mm)

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.