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
0077328A7 KOOL MU 090 PERM BLACK 324 SIZE Magnetics, a division of Spang & Co.	3,605	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	1.410" (35.81mm)	84 nH	±8%	Ungapped	-	90	-	89.8	67.8	-	6090.0	Uncoated	0.412" (10.46mm)	-	-
0079592A7 KOOL MU MAX 019 PERM BLACK 585 S Magnetics, a division of Spang & Co.	1,398	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu MAX	1.350" (34.29mm)	12 nH	±8%	Ungapped	-	19	-	89.5	46.4	-	4150.0	Uncoated	0.350" (8.90mm)	-	-
0079591A7 KOOL MU MAX 040 PERM BLACK 585 S Magnetics, a division of Spang & Co.	3,177	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu MAX	1.350" (34.29mm)	25 nH	±8%	Ungapped	-	40	-	89.5	46.4	-	4150.0	Uncoated	0.350" (8.90mm)	-	-
0076586A7 KOOL MU HF 060 PERM BLACK 585 SI Magnetics, a division of Spang & Co.	2,689	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu HF	1.350" (34.29mm)	28 nH	±8%	Ungapped	-	60	-	89.5	46.4	-	4150.0	Uncoated	0.350" (8.90mm)	-	-
0076587A7 KOOL MU HF 026 PERM BLACK 585 SI Magnetics, a division of Spang & Co.	2,917	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu HF	1.350" (34.29mm)	16 nH	±8%	Ungapped	-	26	-	89.5	46.4	-	4150.0	Uncoated	0.350" (8.90mm)	-	-
0077327A7 KOOL MU 014 PERM BLACK 324 SIZE Magnetics, a division of Spang & Co.	1,516	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	1.410" (35.81mm)	13 nH	±8%	Ungapped	-	14	-	89.7	67.8	-	6080.0	Uncoated	0.412" (10.46mm)	-	-
0077326A7 KOOL MU 026 PERM BLACK 324 SIZE Magnetics, a division of Spang & Co.	1,832	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	1.410" (35.81mm)	24 nH	±8%	Ungapped	-	26	-	89.8	67.8	-	6090.0	Uncoated	0.412" (10.46mm)	-	-
00K4119U040 KOOL MU 4119 U CORE Magnetics, a division of Spang & Co.	3,610	-	RFQ	Datasheet	-	Bulk	Active	U	-	Kool Mu	-	110 nH	±8%	Ungapped	-	40	-	85.2	160.0	-	13630.0	Uncoated	0.440" (11.18mm)	1.620" (41.15mm)	0.768" (19.50mm)
00K4119U060 KOOL MU 4119 U CORE Magnetics, a division of Spang & Co.	3,555	-	RFQ	Datasheet	-	Bulk	Active	U	-	Kool Mu	-	151 nH	±8%	Ungapped	-	60	-	85.2	160.0	-	13630.0	Uncoated	0.440" (11.18mm)	1.600" (40.64mm)	0.750" (19.05mm)
0J43813TC TOROID UNCOATED Magnetics, a division of Spang & Co.	3,453	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	J	1.500" (38.10mm)	8.365 µH	±20%	Ungapped	-	5000	-	82.9	115.6	-	9652.0	Uncoated	0.500" (12.70mm)	-	-

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.