Ferrite Cores

Browse available Ferrite Cores components by manufacturer and part number. Review stock status, datasheets and key technical parameters to compare suitable options for design, maintenance, replacement or purchasing.

If you already have a target MPN or BOM, send it to EGOO with the required quantity. Our sourcing team can check availability, lead time and quotation options, including hard-to-find and obsolete parts.

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
C058381A2 HIGH FLUX 060 PERM KHAKI 380 SIZ Magnetics, a division of Spang & Co.	4,220	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	High Flux	0.710" (18.03mm)	43 nH	±8%	Ungapped	-	60	-	41.4	23.2	-	960.0	Coated	0.280" (7.11mm)	-	-
0F43230UG PQ CORE Magnetics, a division of Spang & Co.	2,474	-	RFQ	Datasheet	-	Bulk	Active	PQ	-	F	-	6.1 µH	±25%	Ungapped	-	3000	-	74.7	167.0	142.0	12500.0	Uncoated	0.596" (15.15mm)	1.299" (33.00mm)	0.866" (22.00mm)
0L42313EC ER CORE Magnetics, a division of Spang & Co.	2,713	-	RFQ	Datasheet	-	Bulk	Active	ER	-	L	-	1.85 µH	±25%	Ungapped	-	900	-	26.6	50.2	50.0	1340.0	Uncoated	0.142" (3.60mm)	0.913" (23.20mm)	0.492" (12.50mm)
0J42616UG POT CORE Magnetics, a division of Spang & Co.	1,141	-	RFQ	Datasheet	-	Bulk	Active	P	-	J	1.004" (25.50mm)	11.7 µH	-	Ungapped	-	5000	-	37.6	93.9	77.4	3530.0	Uncoated	0.317" (8.05mm)	-	-
B66337G0000X187 FERRITE CORE EC N87 EPCOS - TDK Electronics	4,566	-	RFQ	Datasheet	EC35/17/10	Box	Active	EC	EC 35 x 17 x 10	N87	-	-	-	-	-	2200	0.92	77.4	84.3	71.0	6530.0	Uncoated	0.687" (17.45mm)	1.358" (34.50mm)	0.386" (9.80mm)
TX25/15/10-4F1 Ferrite Misc Ferroxcube	2,410	-	RFQ	Datasheet	-	Bulk	Active	Toroid	TX 25 x 15 x 10	4F1	0.994" (25.25mm)	-	-	Ungapped	-	-	1.23	60.2	48.9	-	2944.0	Epoxy	0.421" (10.40mm)	-	-
P18/11-3C95 FERRITE CORE P 4UH 3C95 2PC SET Ferroxcube	1,353	-	RFQ	Datasheet	-	Bulk	Active	P	P 18 x 11	3C95	0.724" (18.40mm)	4 µH	±25%	Ungapped	1900.0	-	0.597	25.8	43.3	36.0	1120.0	Uncoated	0.417" (10.60mm)	-	-
E38/8/25-3C92-A630-E FERRITE CORE E 3C92 Ferroxcube	2,536	-	RFQ	Datasheet	-	Bulk	Active	E	E 38 x 8 x 25	3C92	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.325" (8.26mm)	1.500" (38.10mm)	1.000" (25.40mm)
E38/8/25-3C92-A630-P FERRITE CORE E 3C92 Ferroxcube	3,619	-	RFQ	Datasheet	-	Bulk	Active	E	E 38 x 8 x 25	3C92	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.325" (8.26mm)	1.500" (38.10mm)	1.000" (25.40mm)
ER48/21/21-3C94-G1000 FERRITE CORE ER 3C94 Ferroxcube	1,490	-	RFQ	Datasheet	-	Bulk	Active	ER	ER 48 x 21 x 21	3C94	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.835" (21.20mm)	1.890" (48.00mm)	0.827" (21.00mm)
ER48/21/21-3C94-G500 FERRITE CORE ER 3C94 Ferroxcube	3,593	-	RFQ	Datasheet	-	Bulk	Active	ER	ER 48 x 21 x 21	3C94	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.835" (21.20mm)	1.890" (48.00mm)	0.827" (21.00mm)
6298370121 FERRITE CORE RM SET Fair-Rite Products Corp.	4,496	-	RFQ	Datasheet	-	Bulk	Active	RM	-	-	-	-	±25%	Ungapped	-	2400	43.0	61.3	141.0	124.7	8675.0	Uncoated	-	-	-
0077184AY KOOL MU 090 PERM AY 180 SIZE Magnetics, a division of Spang & Co.	2,701	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	0.183" (4.65mm)	30 nH	±15%	Ungapped	-	90	-	10.6	2.85	-	30.3	Uncoated	0.100" (2.54mm)	-	-
0079932A7 KOOL MU MAX 026 PERM BLACK 930 S Magnetics, a division of Spang & Co.	3,016	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu MAX	1.060" (26.92mm)	32 nH	±8%	Ungapped	-	26	-	63.5	65.4	-	4150.0	Uncoated	0.440" (11.18mm)	-	-
0077181AY KOOL MU 060 PERM AY 180 SIZE Magnetics, a division of Spang & Co.	1,977	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	0.183" (4.65mm)	20 nH	±15%	Ungapped	-	60	-	10.6	2.85	-	30.3	Uncoated	0.100" (2.54mm)	-	-
0077180AY KOOL MU 125 PERM AY 180 SIZE Magnetics, a division of Spang & Co.	3,841	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	0.183" (4.65mm)	42 nH	±15%	Ungapped	-	125	-	10.6	2.85	-	30.3	Uncoated	0.100" (2.54mm)	-	-
0079937A7 KOOL MU MAX 019 PERM BLACK 930 S Magnetics, a division of Spang & Co.	4,271	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu MAX	1.060" (26.92mm)	23 nH	±8%	Ungapped	-	19	-	63.5	65.4	-	4150.0	Uncoated	0.440" (11.18mm)	-	-
0079936A7 KOOL MU MAX 040 PERM BLACK 930 S Magnetics, a division of Spang & Co.	4,835	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu MAX	1.060" (26.92mm)	50 nH	±8%	Ungapped	-	40	-	63.5	65.4	-	4150.0	Uncoated	0.440" (11.18mm)	-	-
0076932A7 KOOL MU HF 026 PERM BLACK 930 SI Magnetics, a division of Spang & Co.	2,360	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu HF	1.060" (26.92mm)	32 nH	±8%	Ungapped	-	26	-	63.5	65.4	-	4150.0	Uncoated	0.440" (11.18mm)	-	-
DR42616UG DOUBLE SLAB CORE Magnetics, a division of Spang & Co.	4,299	-	RFQ	Datasheet	-	Bulk	Active	EQ	-	R	-	3.827 µH	-	Ungapped	-	2300	-	38.9	77.0	62.7	3000.0	Uncoated	0.634" (16.10mm)	1.004" (25.50mm)	0.673" (17.09mm)

Ferrite Cores FAQ

What Ferrite Cores components can I source from EGOO?

You can browse available Ferrite Cores product families, manufacturers and part numbers on this page, then review stock, datasheets and technical information for suitable options.

Can EGOO help with hard-to-source or obsolete Ferrite Cores parts?

Yes. EGOO provides sourcing support for shortage, obsolete and hard-to-find electronic components. Send us the target manufacturer part number and quantity for checking.

Does EGOO support BOM and small-batch sourcing?

Yes. We support BOM sourcing, prototype requirements and small-batch supply, together with stock, lead-time and quotation assistance.

How do I request pricing and availability?

Submit the manufacturer part number, required quantity and any package, date-code or delivery requirements through the RFQ form, and our team will review available sourcing options.