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
RM6S/I-3F3 Ferrite Misc Ferroxcube	1,862	-	RFQ	Datasheet	-	Bulk	Active	RM	RM 6	3F3	-	2.15 µH	±25%	Ungapped	1350.0	-	0.784	29.2	37.0	31.2	1090.0	Uncoated	0.244" (6.20mm)	0.701" (17.90mm)	0.323" (8.20mm)
RM6S/I-3F36 FERRITE CORE RM 3F36 2PC SET Ferroxcube	3,918	-	RFQ	Datasheet	-	Bulk	Active	RM	RM 6	3F36	-	-	±25%	Ungapped	-	-	0.784	29.2	37.0	31.2	1090.0	Uncoated	0.488" (12.40mm)	0.701" (17.90mm)	0.323" (8.20mm)
RM6S/I-3F46 FERRITE CORE RM 3F46 2PC SET Ferroxcube	1,006	-	RFQ	Datasheet	-	Bulk	Active	RM	RM 6	3F46	-	-	±25%	Ungapped	-	-	0.784	29.2	37.0	31.2	1090.0	Uncoated	0.488" (12.40mm)	0.701" (17.90mm)	0.323" (8.20mm)
EP7-3C91-A40 Ferrite Misc Ferroxcube	4,278	-	RFQ	Datasheet	-	Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
EP7-3C90-A160 Ferrite Misc Ferroxcube	1,372	-	RFQ	Datasheet	-	Bulk	Active	EP	EP 7	3C90	-	160 nH	±8%	Gapped	-	-	-	-	10.7	-	165.0	Uncoated	0.148" (3.75mm)	0.370" (9.40mm)	0.256" (6.50mm)
EP7-3C94-A63 Ferrite Misc Ferroxcube	1,026	-	RFQ	Datasheet	-	Bulk	Active	EP	EP 7	3C94	-	63 nH	±3%	Gapped	73.0	-	1.45	15.5	10.7	8.55	165.0	Uncoated	0.148" (3.75mm)	0.370" (9.40mm)	0.256" (6.50mm)
TX20/10/7-3E10 Ferrite Misc Ferroxcube	4,013	-	RFQ	Datasheet	TX20/10/7	Bulk	Active	Toroid	TX 20 x 10 x 7	3E10	0.821" (20.85mm)	9.74 µH	±20%	-	-	10000	1.3	43.6	33.6	-	1465.0	Epoxy	0.309" (7.85mm)	-	-
B66337G0100X127 FERRITE CORE EC N27 1PC EPCOS - TDK Electronics	3,989	-	RFQ	Datasheet	B66337	Box	Not For New Designs	EC	EC 35 x 17 x 10	N27	-	-	-	Gapped	-	-	-	-	-	-	-	Uncoated	0.687" (17.45mm)	1.358" (34.50mm)	0.386" (9.80mm)
RM6S/I-3E27 Ferrite Misc Ferroxcube	2,908	-	RFQ	Datasheet	-	Bulk	Active	RM	RM 6	3E27	-	6 µH	±25%	Ungapped	3800.0	-	0.784	29.2	37.0	31.2	1090.0	Uncoated	0.244" (6.20mm)	0.701" (17.90mm)	0.323" (8.20mm)
RM5/I-3C95 FERRITE CORE RM 3C95 2PC SET Ferroxcube	1,572	-	RFQ	Datasheet	-	Bulk	Active	RM	RM 5	3C95	-	-	±25%	Ungapped	-	-	0.935	23.2	24.8	18.1	574.0	Uncoated	0.421" (10.40mm)	0.587" (14.90mm)	0.484" (12.30mm)
E14/3.5/5/R-4F1-A40-P FERRITE CORE E Ferroxcube	2,136	-	RFQ	Datasheet	-	Bulk	Active	E	E 14 x 3.5 x 5	-	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.138" (3.50mm)	0.551" (14.00mm)	0.197" (5.00mm)
B65857A0250J038 FERRITE CORE EPX 250NH T38 2PCS EPCOS - TDK Electronics	4,964	-	RFQ	Datasheet	EPX7/9	Box	Active	EPX	EPX 7 x 9	T38	-	250 nH	±5%	Gapped	182.0	2300	0.91	15.7	17.2	13.9	270.0	Uncoated	0.148" (3.75mm)	0.370" (9.40mm)	0.354" (9.00mm)
B65857A0400E038 FERRITE CORE EPX 400NH T38 2PCS EPCOS - TDK Electronics	1,415	-	RFQ	Datasheet	EPX7/9	Box	Active	EPX	EPX 7 x 9	T38	-	400 nH	±7%	Gapped	291.0	2300	0.91	15.7	17.2	13.9	270.0	Uncoated	0.148" (3.75mm)	0.370" (9.40mm)	0.354" (9.00mm)
B65857A0040A038 FERRITE CORE EPX T38 EPCOS - TDK Electronics	3,180	-	RFQ	Datasheet	EPX7/9	Box	Active	EPX	EPX 7 x 9	T38	-	-	-	-	-	10000	0.91	15.7	17.2	13.9	270.0	Uncoated	0.148" (3.75mm)	0.370" (9.40mm)	0.354" (9.00mm)
ER35W/21/11-3C94-G200 FERRITE CORE ER 3C94 Ferroxcube	2,659	-	RFQ	Datasheet	-	Bulk	Active	ER	ER 35 x 21 x 11	3C94	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.823" (20.90mm)	1.378" (35.00mm)	0.453" (11.50mm)
ER11/2.5/6-3C92-A100-S FERRITE CORE ER 100NH 3C92 2PC Ferroxcube	2,754	-	RFQ	Datasheet	-	Bulk	Active	ER	ER 11 x 2.5 x 6	3C92	-	100 nH	±4%	Gapped	98.0	-	1.23	14.7	11.9	10.3	174.0	Uncoated	0.236" (6.00mm)	0.433" (11.00mm)	0.096" (2.45mm)
E22/6/16/R-3C96 FERRITE CORE E 3C96 Ferroxcube	4,796	-	RFQ	Datasheet	-	Bulk	Active	E	E 22 x 6 x 16	3C96	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.224" (5.70mm)	0.858" (21.80mm)	0.622" (15.80mm)
E35/18/10-3C94-G200 FERRITE CORE E 3C94 Ferroxcube	2,715	-	RFQ	Datasheet	-	Bulk	Active	E	E 35 x 18 x 10	3C94	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.689" (17.50mm)	1.378" (35.00mm)	0.394" (10.00mm)
E22/6/16/R-3F4 Ferrite Misc Ferroxcube	2,190	-	RFQ	Datasheet	-	Bulk	Active	E	E 22 x 6 x 16	3F4	-	2.9 µH	±25%	Ungapped	770.0	-	0.324	26.1	78.5	-	2100.0	Uncoated	0.224" (5.70mm)	0.858" (21.80mm)	0.622" (15.80mm)
TX29/19/7.6-3E6 FERRITE CORE TOROID Ferroxcube	1,805	-	RFQ	Datasheet	-	Bulk	Active	Toroid	TX 29 x 19 x 7.6	-	0.640" (16.25mm)	-	±30%	Ungapped	10000.0	-	2.06	73.2	35.5	-	2600.0	Epoxy	0.258" (6.55mm)	-	-

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.