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
00K1808E060 KOOL MU 1808 E CORE Magnetics, a division of Spang & Co.	3,940	-	RFQ	Datasheet	-	Bulk	Active	E	-	Kool Mu	-	48 nH	±8%	Ungapped	-	60	-	40.1	22.8	-	914.0	Uncoated	0.319" (8.10mm)	0.760" (19.30mm)	0.188" (4.78mm)
CL42216EC PE CS CORE Magnetics, a division of Spang & Co.	3,710	-	RFQ	Datasheet	-	Bulk	Active	Planar E	-	L	-	2.3 µH	±25%	Ungapped	-	900	-	32.3	76.0	73.1	2451.0	Uncoated	0.224" (5.70mm)	0.858" (21.80mm)	0.622" (15.80mm)
0R43517EC EC-CORE Magnetics, a division of Spang & Co.	3,224	-	RFQ	Datasheet	-	Bulk	Active	EC	-	R	-	2.213 µH	-	Ungapped	-	2300	-	77.4	84.3	71.0	6530.0	Uncoated	0.681" (17.30mm)	1.358" (34.50mm)	0.374" (9.50mm)
0R43939EC ETD CORE Magnetics, a division of Spang & Co.	4,672	-	RFQ	Datasheet	-	Bulk	Active	ETD	-	R	-	2.973 µH	-	Ungapped	-	2300	-	92.2	125.0	123.0	11500.0	Uncoated	0.780" (19.80mm)	1.575" (40.00mm)	0.504" (12.80mm)
0077241AY KOOL MU 060 PERM AY 240 SIZE Magnetics, a division of Spang & Co.	4,423	-	RFQ	Datasheet	-	Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
0077847A7 KOOL MU 040 PERM BLACK 206 SIZE Magnetics, a division of Spang & Co.	3,052	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	0.800" (20.32mm)	21 nH	±8%	Ungapped	-	40	-	50.9	22.1	-	1120.0	Uncoated	0.250" (6.35mm)	-	-
0077848A7 KOOL MU 060 PERM BLACK 206 SIZE Magnetics, a division of Spang & Co.	4,993	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	0.800" (20.32mm)	32 nH	±8%	Ungapped	-	60	-	50.9	22.1	-	1120.0	Uncoated	0.250" (6.35mm)	-	-
ZP41605TC TOROID GREY COATED Magnetics, a division of Spang & Co.	2,807	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	P	0.655" (16.64mm)	1.375 µH	±25%	Ungapped	-	2500	-	37.2	15.6	-	582.0	Epoxy	0.205" (5.20mm)	-	-
0077208A7 KOOL MU 026 PERM BLACK 206 SIZE Magnetics, a division of Spang & Co.	2,059	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mµ	0.800" (20.32mm)	14 nH	±8%	Ungapped	-	26	-	50.9	22.1	-	1120.0	Uncoated	0.250" (6.35mm)	-	-
0077210A7 KOOL MU 090 PERM BLACK 206 SIZE Magnetics, a division of Spang & Co.	4,876	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	0.800" (20.32mm)	49 nH	±8%	Ungapped	-	90	-	50.9	22.1	-	1120.0	Uncoated	0.250" (6.35mm)	-	-

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.