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
EQK4128E040L120 KOOL MU 040 PERM EQ 4128 SIZE Magnetics, a division of Spang & Co.	3,034	-	RFQ	Datasheet	-	Bulk	Active	EQ	-	Kool Mµ	-	138 nH	±8%	Ungapped	-	40	-	83.6	200.0	-	16700.0	Uncoated	0.472" (12.00mm)	1.634" (41.50mm)	1.102" (28.00mm)
0077586A7 KOOL MU 060 PERM BLACK 585 SIZE Magnetics, a division of Spang & Co.	4,010	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	1.350" (34.29mm)	38 nH	±8%	Ungapped	-	60	-	89.5	46.4	-	4150.0	Uncoated	0.350" (8.90mm)	-	-
EQK4128E060L120 KOOL MU 060 PERM EQ 4128 SIZE Magnetics, a division of Spang & Co.	1,950	-	RFQ	Datasheet	-	Bulk	Active	EQ	-	Kool Mu	-	193 nH	±8%	Ungapped	-	60	-	83.6	200.0	-	16700.0	Uncoated	0.472" (12.00mm)	1.634" (41.50mm)	1.102" (28.00mm)
RJ42316UG R-RM DESIGN Magnetics, a division of Spang & Co.	4,718	-	RFQ	Datasheet	-	Bulk	Active	RM	-	J	-	6.96 µH	-	Ungapped	-	5000	-	35.5	52.0	36.9	1850.0	Uncoated	0.323" (8.20mm)	0.913" (23.20mm)	0.425" (10.80mm)
B65805C0000R041 FERRITE CORE RM EPCOS - TDK Electronics	4,741	-	RFQ	Datasheet	RM5	Box	Active	RM	-	-	-	-	-	Ungapped	-	-	-	-	-	-	-	Uncoated	-	-	-
E32/6/20/R-3C95-A250-P FERRITE CORE E 3C95 Ferroxcube	4,552	-	RFQ	Datasheet	-	Bulk	Active	E	E 32 x 6 x 20	3C95	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.250" (6.35mm)	1.250" (31.75mm)	0.800" (20.32mm)
E32/6/20-3C95-A250-E FERRITE CORE E 3C95 Ferroxcube	3,537	-	RFQ	Datasheet	-	Bulk	Active	E	E 32 x 6 x 20	3C95	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.250" (6.35mm)	1.250" (31.75mm)	0.800" (20.32mm)
E32/6/20-3C95-A250-P FERRITE CORE E 3C95 Ferroxcube	3,029	-	RFQ	Datasheet	-	Bulk	Active	E	E 32 x 6 x 20	3C95	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.250" (6.35mm)	1.250" (31.75mm)	0.800" (20.32mm)
RM4/I-3C96-A100 FERRITE CORE RM 100NH 3C96 2PC Ferroxcube	3,535	-	RFQ	Datasheet	-	Bulk	Active	RM	RM 4	3C96	-	100 nH	±3%	Gapped	134.0	-	1.69	23.3	13.8	11.5	322.0	Uncoated	0.421" (10.40mm)	0.433" (11.00mm)	0.386" (9.80mm)
RM4/I-3C96-A63 FERRITE CORE RM 63NH 3C96 2PC Ferroxcube	3,589	-	RFQ	Datasheet	-	Bulk	Active	RM	RM 4	3C96	-	63 nH	±3%	Gapped	85.0	-	1.69	23.3	13.8	11.5	322.0	Uncoated	0.421" (10.40mm)	0.433" (11.00mm)	0.386" (9.80mm)
RM8/I-3C92-A160 Ferrite Misc Ferroxcube	2,342	-	RFQ	Datasheet	RM8/I	Bulk	Active	RM	RM 8	3C92	-	160 nH	-	Ungapped	-	-	0.604	38.4	63.0	55.4	2440.0	Uncoated	0.323" (8.20mm)	0.913" (23.20mm)	0.913" (23.20mm)
RM8/I-3C92-A315 Ferrite Misc Ferroxcube	3,941	-	RFQ	Datasheet	RM8/I	Bulk	Active	RM	RM 8	3C92	-	-	-	Gapped	-	-	0.604	38.4	63.0	55.4	2440.0	Uncoated	0.323" (8.20mm)	0.913" (23.20mm)	0.433" (11.00mm)
RM4/I-3C95-A315 Ferrite Misc Ferroxcube	3,681	-	RFQ	Datasheet	RM4/I	Bulk	Active	RM	RM 4	3C95	-	1.3 µH	±25%	Ungapped	-	-	1.69	23.3	13.8	11.5	322.0	Uncoated	0.205" (5.20mm)	0.433" (11.00mm)	0.181" (4.60mm)
RM4/I-3C95-A250 Ferrite Misc Ferroxcube	1,584	-	RFQ	Datasheet	-	Bulk	Active	RM	RM 4	3C95	-	250 nH	-	Gapped	-	-	1.69	23.3	13.8	11.5	322.0	Uncoated	0.205" (5.20mm)	0.433" (11.00mm)	0.181" (4.60mm)
RM4/I-3C95-A100 FERRITE CORE RM 100NH 3C95 2PC Ferroxcube	3,874	-	RFQ	Datasheet	-	Bulk	Active	RM	RM 4	3C95	-	100 nH	±3%	Gapped	134.0	-	1.69	23.3	13.8	11.5	322.0	Uncoated	0.421" (10.40mm)	0.433" (11.00mm)	0.386" (9.80mm)
RM4/I-3C95-A63 FERRITE CORE RM 63NH 3C95 2PC Ferroxcube	1,622	-	RFQ	Datasheet	-	Bulk	Active	RM	RM 4	3C95	-	63 nH	±3%	Gapped	85.0	-	1.69	23.3	13.8	11.5	322.0	Uncoated	0.421" (10.40mm)	0.433" (11.00mm)	0.386" (9.80mm)
9495112002 FERRITE CORE E 95 SET Fair-Rite Products Corp.	3,486	-	RFQ	Datasheet	-	Bulk	Active	E	-	95	-	-	±25%	Ungapped	-	3000	81.0	69.7	86.0	79.0	5990.0	Uncoated	0.565" (14.35mm)	-	0.374" (9.50mm)
B65517W0120A087 P9/5 N87 120 +3% - EPCOS - TDK Electronics	3,566	-	RFQ	Datasheet	-	Tray	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
B65517W0080A087 P9/5 N87 80 +3% -3 EPCOS - TDK Electronics	2,372	-	RFQ	Datasheet	-	Tray	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
E41/17/12-3F36-G500 FERRITE CORE E 3F36 Ferroxcube	4,164	-	RFQ	Datasheet	-	Bulk	Active	E	E 41 x 17 x 12	3F36	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.654" (16.60mm)	1.598" (40.60mm)	0.488" (12.40mm)

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.