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
B65803A0063A048 FERRITE CORE RM 63NH N48 2PCS EPCOS - TDK Electronics	4,843	-	RFQ	Datasheet	RM4	Box	Active	RM	RM 4	N48	-	63 nH	±3%	Gapped	96.0	-	1.9	21.0	11.0	-	231.0	Uncoated	0.207" (5.25mm)	0.433" (11.00mm)	0.181" (4.60mm)
B65803J0100A048 FERRITE CORE RM N48 EPCOS - TDK Electronics	1,128	-	RFQ	Datasheet	RM4	Box	Active	RM	RM 4	N48	-	-	-	Gapped	-	2300	1.7	22.0	13.0	11.3	286.0	Uncoated	0.413" (10.50mm)	0.433" (11.00mm)	0.181" (4.60mm)
B65803J0063A048 FERRITE CORE RM N48 EPCOS - TDK Electronics	2,108	-	RFQ	Datasheet	RM4	Box	Active	RM	RM 4	N48	-	-	-	Gapped	-	2300	1.7	22.0	13.0	11.3	286.0	Uncoated	0.413" (10.50mm)	0.433" (11.00mm)	0.181" (4.60mm)
B65803N0063A048 FERRITE CORE RM 63NH N48 2PCS EPCOS - TDK Electronics	2,159	-	RFQ	Datasheet	RM4	Box	Active	RM	RM 4	N48	-	63 nH	±3%	Gapped	96.0	-	1.9	21.0	11.0	-	231.0	Uncoated	0.207" (5.25mm)	0.433" (11.00mm)	0.181" (4.60mm)
B65803A0100A048 RM4 N48 100 +3% - EPCOS - TDK Electronics	3,471	-	RFQ	Datasheet	B65803	Tape & Reel (TR)	Active	RM	RM 4	N48	-	100 nH	±3%	Ungapped	152.0	-	1.9	21.0	11.0	-	231.0	Uncoated	0.177" (4.50mm)	0.433" (11.00mm)	0.181" (4.60mm)
ER41/7.6/32-3C95 FERRITE CORE ER 3C95 Ferroxcube	1,880	-	RFQ	Datasheet	-	Bulk	Active	ER	ER 41 x 7.6 x 32	3C95	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.300" (7.60mm)	1.600" (40.64mm)	1.260" (32.00mm)
UR39/35/15-3C90 FERRITE CORE UR 3C90 Ferroxcube	1,984	-	RFQ	Datasheet	-	Bulk	Active	UR	UR 39 x 35 x 15	3C90	-	-	-	-	-	-	-	-	-	-	-	Uncoated	1.386" (35.20mm)	1.524" (38.70mm)	0.587" (14.90mm)
B65805N0400J048 FERRITE CORE RM EPCOS - TDK Electronics	3,283	-	RFQ	Datasheet	RM5	Box	Active	RM	-	-	-	-	-	Gapped	-	-	-	-	-	-	-	Uncoated	-	-	-
B65805N0125A048 RM5 N48 125 +3% - EPCOS - TDK Electronics	1,463	-	RFQ	Datasheet	-	Tape & Reel (TR)	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
B66506K0000X606 I30/2.7/20 PC95 6500 +25 EPCOS - TDK Electronics	4,465	-	RFQ	Datasheet	-	Tray	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
9598404602 FERRITE CORE EER SET Fair-Rite Products Corp.	4,936	-	RFQ	Datasheet	-	Bulk	Active	EER	-	-	-	-	±25%	Ungapped	-	2400	69.0	100.0	144.0	130.0	14420.0	Uncoated	-	1.575" (40.00mm)	-
P18/11-3F36 FERRITE CORE P 2.2UH 3F36 2PC Ferroxcube	2,287	-	RFQ	Datasheet	-	Bulk	Active	P	P 18 x 11	3F36	0.724" (18.40mm)	2.2 µH	±25%	Ungapped	1040.0	-	0.597	25.8	43.3	36.0	1120.0	Uncoated	0.417" (10.60mm)	-	-
P18/11-3F46 FERRITE CORE P 1.4UH 3F46 2PC Ferroxcube	3,626	-	RFQ	Datasheet	-	Bulk	Active	P	P 18 x 11	3F46	0.724" (18.40mm)	1.4 µH	±25%	Ungapped	660.0	-	0.597	25.8	43.3	36.0	1120.0	Uncoated	0.417" (10.60mm)	-	-
P18/11-3E27 Ferrite Misc Ferroxcube	2,269	-	RFQ	Datasheet	-	Bulk	Active	P	P 18 x 11	3E27	0.724" (18.40mm)	7.5 µH	±25%	Ungapped	3560.0	-	0.597	25.8	43.3	36.0	1120.0	Uncoated	0.209" (5.30mm)	-	-
P18/11-3F4 Ferrite Misc Ferroxcube	3,469	-	RFQ	Datasheet	-	Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
P18/11-3F3-A160 Ferrite Misc Ferroxcube	1,539	-	RFQ	Datasheet	-	Bulk	Active	P	P 18 x 11	3F3	0.724" (18.40mm)	160 nH	±3%	Gapped	76.0	-	0.597	25.8	43.3	36.0	1120.0	Uncoated	0.209" (5.30mm)	-	-
P18/11-3F3-A400 Ferrite Misc Ferroxcube	4,288	-	RFQ	Datasheet	-	Bulk	Active	P	P 18 x 11	3F3	0.724" (18.40mm)	400 nH	±3%	Gapped	190.0	-	0.597	25.8	43.3	36.0	1120.0	Uncoated	0.209" (5.30mm)	-	-
P18/11-3F3-A315 Ferrite Misc Ferroxcube	3,825	-	RFQ	Datasheet	-	Bulk	Active	P	P 18 x 11	3F3	0.724" (18.40mm)	315 nH	±3%	Gapped	149.0	-	0.597	25.8	43.3	36.0	1120.0	Uncoated	0.209" (5.30mm)	-	-
P18/11-3F3-A250 Ferrite Misc Ferroxcube	1,262	-	RFQ	Datasheet	-	Bulk	Active	P	P 18 x 11	3F3	0.724" (18.40mm)	250 nH	±3%	Gapped	119.0	-	0.597	25.8	43.3	36.0	1120.0	Uncoated	0.209" (5.30mm)	-	-
B65805J0000R045 FERRITE CORE RM 2.6UH N45 2PCS EPCOS - TDK Electronics	1,834	-	RFQ	Datasheet	RM5	Box	Active	RM	RM 5	N45	-	2.6 µH	-20%, +30%	Ungapped	1920.0	3800	0.93	22.1	23.8	18.0	526.0	Uncoated	0.207" (5.25mm)	0.575" (14.60mm)	0.268" (6.80mm)

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.