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
0077257A7 KOOL MU 014 PERM BLACK 254 SIZE Magnetics, a division of Spang & Co.	1,069	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	1.570" (39.88mm)	19 nH	±8%	Ungapped	-	14	-	98.5	107.0	-	10600.0	Uncoated	0.570" (14.48mm)	-	-
C055180A2 MPP 125 PERM GREY 180 SIZE Magnetics, a division of Spang & Co.	4,455	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	MPP	0.208" (5.28mm)	42 nH	±8%	Ungapped	-	125	-	10.6	2.85	-	30.3	Coated	0.125" (3.18mm)	-	-
C058148A2 HIGH FLUX 160 PERM KHAKI 150 SIZ Magnetics, a division of Spang & Co.	2,070	-	RFQ	Datasheet	-	Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
0077395A7 KOOL MU 125 PERM BLACK 395 SIZE Magnetics, a division of Spang & Co.	3,983	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mµ	1.580" (40.13mm)	254 nH	±8%	Ungapped	-	125	-	95.0	153.0	-	14600.0	Uncoated	0.669" (17.00mm)	-	-
NR43723UG RM DESIGN POT CORE Magnetics, a division of Spang & Co.	4,707	-	RFQ	Datasheet	-	Bulk	Active	RM	-	R	-	4.6 µH	-	Ungapped	-	2300	-	56.6	146.0	125.0	8340.0	Uncoated	0.482" (12.25mm)	1.472" (37.40mm)	0.634" (16.10mm)
0077390A7 KOOL MU 026 PERM BLACK 395 SIZE Magnetics, a division of Spang & Co.	2,588	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mµ	1.580" (40.13mm)	53 nH	±8%	Ungapped	-	26	-	95.0	153.0	-	14600.0	Uncoated	0.669" (17.00mm)	-	-
0077392A7 KOOL MU 060 PERM BLACK 395 SIZE Magnetics, a division of Spang & Co.	1,820	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mµ	1.580" (40.13mm)	122 nH	±8%	Ungapped	-	60	-	95.0	153.0	-	14600.0	Uncoated	0.669" (17.00mm)	-	-
0077393A7 KOOL MU 075 PERM BLACK 395 SIZE Magnetics, a division of Spang & Co.	4,336	-	RFQ	Datasheet	-	Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
0P47035EC EC CORE Magnetics, a division of Spang & Co.	3,218	-	RFQ	Datasheet	-	Bulk	Active	EC	-	P	-	4.8 µH	-	Ungapped	-	2500	-	144.0	279.0	211.0	40100.0	Uncoated	1.358" (34.50mm)	2.756" (70.00mm)	0.646" (16.40mm)
0058020AY HIGH FLUX 125 PERM AY 020 SIZE Magnetics, a division of Spang & Co.	2,782	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	High Flux	0.250" (6.35mm)	50 nH	±8%	Ungapped	-	125	-	13.6	4.7	-	64.0	Uncoated	0.110" (2.79mm)	-	-

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.