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
B65805J0250A041 FERRITE CORE RM EPCOS - TDK Electronics	2,482	-	RFQ	Datasheet	RM5	Box	Active	RM	-	-	-	-	-	Gapped	-	-	-	-	-	-	-	Uncoated	-	-	-
ER18/3.2/10-3F3-S Ferrite Misc Ferroxcube	1,706	-	RFQ	Datasheet	-	Bulk	Active	ER	ER 18 x 3.2 x 10	3F3	-	2.4 µH	±25%	Ungapped	1100.0	-	-	22.1	30.2	30.1	-	Uncoated	-	-	-
ETD49/25/16-3C90-G2000 FERRITE CORE ETD 3C90 Ferroxcube	4,086	-	RFQ	Datasheet	-	Bulk	Active	ETD	ETD 49 x 25 x 16	3C90	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.972" (24.70mm)	1.961" (49.80mm)	0.657" (16.70mm)
E38/8/25-3C96-A630-E FERRITE CORE E 3C96 Ferroxcube	2,310	-	RFQ	Datasheet	-	Bulk	Active	E	E 38 x 8 x 25	3C96	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.325" (8.26mm)	1.500" (38.10mm)	1.000" (25.40mm)
E38/8/25-3C96-A630-P FERRITE CORE E 3C96 Ferroxcube	2,294	-	RFQ	Datasheet	-	Bulk	Active	E	E 38 x 8 x 25	3C96	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.325" (8.26mm)	1.500" (38.10mm)	1.000" (25.40mm)
E38/8/25-3F4-A630-E FERRITE CORE E 3F4 Ferroxcube	3,540	-	RFQ	Datasheet	-	Bulk	Active	E	E 38 x 8 x 25	3F4	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.325" (8.26mm)	1.500" (38.10mm)	1.000" (25.40mm)
E38/8/25-3F4-A630-P FERRITE CORE E 3F4 Ferroxcube	1,819	-	RFQ	Datasheet	-	Bulk	Active	E	E 38 x 8 x 25	3F4	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.325" (8.26mm)	1.500" (38.10mm)	1.000" (25.40mm)
P11/7-3F36 FERRITE CORE P 3F36 2PC SET Ferroxcube	1,474	-	RFQ	Datasheet	-	Bulk	Active	P	P 11 x 7	3F36	0.437" (11.10mm)	-	±25%	Ungapped	-	-	0.956	15.5	16.2	13.2	251.0	Uncoated	0.256" (6.50mm)	-	-
P11/7-3F46 FERRITE CORE P 800NH 3F46 2PC Ferroxcube	4,915	-	RFQ	Datasheet	-	Bulk	Active	P	P 11 x 7	3F46	0.437" (11.10mm)	800 nH	±25%	Ungapped	610.0	-	0.956	15.5	16.2	13.2	251.0	Uncoated	0.256" (6.50mm)	-	-
RM6R-3H3-A400 Ferrite Misc Ferroxcube	3,153	-	RFQ	Datasheet	-	Bulk	Active	RM	RM 6	3H3	-	400 nH	±3%	Gapped	258.0	-	0.81	25.6	32.0	23.8	810.0	Uncoated	0.244" (6.20mm)	0.701" (17.90mm)	0.291" (7.40mm)
B65531D0040A033 FERRITE CORE P 40NH M33 2PCS EPCOS - TDK Electronics	4,018	-	RFQ	Datasheet	P11/7	Box	Active	P (Pot Core)	P 11 x 7	M33	0.445" (11.30mm)	40 nH	±3%	Gapped	32.0	750	1.0	15.9	15.9	-	253.0	Uncoated	0.130" (3.30mm)	-	-
B65541W0000R045 FERRITE CORE N45 EPCOS - TDK Electronics	1,635	-	RFQ	Datasheet	P14/8	Box	Active	-	P 14 x 8	N45	0.563" (14.30mm)	-	-	-	-	3800	0.73	21.0	28.7	23.6	603.0	Uncoated	0.167" (4.25mm)	-	-
ER48/21/21-3C95 Ferrite Misc Ferroxcube	3,121	-	RFQ	Datasheet	-	Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
PT23/11-3C91 Ferrite Misc Ferroxcube	1,699	-	RFQ	Datasheet	-	Bulk	Active	P	PT 23 x 11	3C91	0.902" (22.90mm)	5.5 µH	±25%	Ungapped	2050.0	-	0.47	28.6	61.0	53.6	1740.0	Uncoated	0.217" (5.51mm)	-	-
CPH-E71-1S Ferrite Misc Ferroxcube	2,131	-	RFQ	Datasheet	-	Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
P11/7-3F3-A160 Ferrite Misc Ferroxcube	4,561	-	RFQ	Datasheet	-	Bulk	Active	P	P 11 x 7	3F3	0.437" (11.10mm)	160 nH	±3%	Gapped	122.0	-	0.956	15.5	16.2	13.2	251.0	Uncoated	0.128" (3.25mm)	-	-
P11/7-3F3-A100 Ferrite Misc Ferroxcube	3,410	-	RFQ	Datasheet	-	Bulk	Active	P	P 11 x 7	3F3	0.437" (11.10mm)	100 nH	±3%	Gapped	240.0	-	0.956	15.5	16.2	13.2	251.0	Uncoated	0.128" (3.25mm)	-	-
P11/7-3F3-A250 Ferrite Misc Ferroxcube	2,370	-	RFQ	Datasheet	-	Bulk	Active	P	P 11 x 7	3F3	0.437" (11.10mm)	250 nH	±5%	Gapped	190.0	-	0.956	15.5	16.2	13.2	251.0	Uncoated	0.128" (3.25mm)	-	-
B66350G0000X187 FERRITE CORE ER N87 1PC EPCOS - TDK Electronics	4,620	-	RFQ	Datasheet	B66350	Box	Active	ER	ER 35 x 20 x 11	N87	-	-	-20%, +30%	Ungapped	1735.0	-	0.81	89.6	111.0	101.0	9950.0	Uncoated	0.815" (20.70mm)	1.378" (35.00mm)	0.445" (11.30mm)
E42/21/20-3C96-G1600 Ferrite Misc Ferroxcube	2,991	-	RFQ	Datasheet	-	Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-

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.