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
TUB8/4.2/51-3B1 Ferrite Misc Ferroxcube	3,797	-	RFQ	Datasheet	-	Bulk	Active	Tube	TUB 8 x 4.2 x 51	3B1	0.315" (8.00mm)	-	-	Ungapped	-	-	-	-	-	-	-	Uncoated	-	2.024" (51.40mm)	-
E36/21/12-3F36-G200 FERRITE CORE E 3F36 Ferroxcube	2,390	-	RFQ	Datasheet	-	Bulk	Active	E	E 36 x 21 x 12	3F36	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.856" (21.75mm)	1.417" (36.00mm)	0.472" (12.00mm)
E41/17/12-3C95 FERRITE CORE E 3C95 Ferroxcube	3,557	-	RFQ	Datasheet	-	Bulk	Active	E	E 36 x 21 x 12	3C95	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.856" (21.75mm)	1.417" (36.00mm)	0.472" (12.00mm)
EQ25-3F36-A250 Ferrite Misc Ferroxcube	1,614	-	RFQ	Datasheet	-	Bulk	Active	EQ	EQ 25	3F36	-	250 nH	±3%	Gapped	82.0	-	0.414	41.4	100.0	95.0	4145.0	Uncoated	0.315" (8.00mm)	0.984" (25.00mm)	0.709" (18.00mm)
EQ25/LP-3F46-A250 Ferrite Misc Ferroxcube	4,402	-	RFQ	Datasheet	-	Bulk	Active	EQ	EQ 25	3F46	-	250 nH	±3%	Gapped	74.0	-	0.375	34.3	91.7	86.4	3150.0	Uncoated	0.220" (5.60mm)	0.984" (25.00mm)	0.709" (18.00mm)
EQ25-3F46-A250 Ferrite Misc Ferroxcube	4,169	-	RFQ	Datasheet	-	Bulk	Active	EQ	EQ 25	3F46	-	250 nH	±3%	Gapped	82.0	-	0.414	41.4	100.0	95.0	4145.0	Uncoated	0.315" (8.00mm)	0.984" (25.00mm)	0.709" (18.00mm)
EQ25/LP-3F36-A250 Ferrite Misc Ferroxcube	2,639	-	RFQ	Datasheet	-	Bulk	Active	EQ	EQ 25	3F36	-	250 nH	±3%	Gapped	74.0	-	0.375	34.3	91.7	86.4	3150.0	Uncoated	0.220" (5.60mm)	0.984" (25.00mm)	0.709" (18.00mm)
B65843A0000R045 FERRITE CORE EP 2.4UH N45 2PCS EPCOS - TDK Electronics	3,688	-	RFQ	Datasheet	EP13	Box	Active	EP	EP 13	N45	-	2.4 µH	-20%, +30%	Ungapped	2370.0	3800	1.24	24.2	19.5	14.9	472.0	Uncoated	0.256" (6.50mm)	0.504" (12.80mm)	0.354" (9.00mm)
B65843A0250J041 FERRITE CORE EP N41 EPCOS - TDK Electronics	1,522	-	RFQ	Datasheet	EP13	Box	Active	EP	EP 13	N41	-	-	-	Gapped	-	2800	1.24	24.2	19.5	14.9	472.0	Uncoated	0.256" (6.50mm)	0.504" (12.80mm)	0.354" (9.00mm)
B66339G0500X127 FERRITE CORE EC N27 EPCOS - TDK Electronics	3,548	-	RFQ	Datasheet	B66339	Box	Not For New Designs	EC	EC 41 x 20 x 12	N27	-	-	-	-	-	2000	0.74	89.3	121.0	106.0	10800.0	Uncoated	0.469" (11.90mm)	1.598" (40.60mm)	0.774" (19.65mm)
RM4/ILP-3E6 Ferrite Misc Ferroxcube	4,174	-	RFQ	Datasheet	RM4/ILP	Bulk	Active	RM	RM 4	3E6	-	6 µH	-30%, +40%	Ungapped	5700.0	-	1.19	17.3	14.5	11.3	251.0	Uncoated	0.154" (3.90mm)	0.433" (11.00mm)	0.181" (4.60mm)
TX26/15/10-3C95 Ferrite Misc Ferroxcube	1,226	-	RFQ	Datasheet	-	Bulk	Active	Toroid	TX 26 x 15 x 10	3C95	1.061" (26.95mm)	-	-	Ungapped	-	-	1.08	60.1	55.9	-	3360.0	Epoxy	0.429" (10.90mm)	-	-
EQ30-3C96 FERRITE CORE EQ 3C96 Ferroxcube	4,611	-	RFQ	Datasheet	-	Bulk	Active	EQ	EQ 30	3C96	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.315" (8.00mm)	1.181" (30.00mm)	0.787" (20.00mm)
EQ30-3F4 FERRITE CORE EQ 3F4 Ferroxcube	2,377	-	RFQ	Datasheet	-	Bulk	Active	EQ	EQ 30	3F4	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.315" (8.00mm)	1.181" (30.00mm)	0.787" (20.00mm)
PQ20/20-3F46 FERRITE CORE PQ 3F46 2PC SET Ferroxcube	1,050	-	RFQ	Datasheet	-	Bulk	Active	PQ	PQ 20 x 20	3F46	-	-	±25%	Ungapped	-	-	0.731	45.7	62.6	59.1	2850.0	Uncoated	0.795" (20.20mm)	0.839" (21.30mm)	0.551" (14.00mm)
RM8/ILP-3C96 Ferrite Misc Ferroxcube	1,120	-	RFQ	Datasheet	-	Bulk	Active	RM	RM 8	3C96	-	3.8 µH	±25%	Ungapped	1330.0	-	0.44	28.7	64.9	55.4	1860.0	Uncoated	0.228" (5.80mm)	0.913" (23.20mm)	0.433" (11.00mm)
RM8/ILP-3F4 Ferrite Misc Ferroxcube	1,452	-	RFQ	Datasheet	-	Bulk	Active	RM	RM 8	3F4	-	2.2 µH	±25%	Ungapped	770.0	-	0.44	28.7	64.9	55.4	1860.0	Uncoated	0.228" (5.80mm)	0.913" (23.20mm)	0.433" (11.00mm)
E41/17/12-3C92-G200 FERRITE CORE E 3C92 Ferroxcube	2,900	-	RFQ	Datasheet	-	Bulk	Active	E	E 41 x 17 x 12	3C92	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.654" (16.60mm)	1.598" (40.60mm)	0.488" (12.40mm)
ER42/22/15-3C94-G1000 FERRITE CORE ER 3C94 Ferroxcube	1,144	-	RFQ	Datasheet	-	Bulk	Active	ER	ER 42 x 22 x 15	3C94	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.858" (21.80mm)	1.654" (42.00mm)	0.591" (15.00mm)
ER42/22/15-3C94-G500 FERRITE CORE ER 3C94 Ferroxcube	4,022	-	RFQ	Datasheet	-	Bulk	Active	ER	ER 42 x 22 x 15	3C94	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.858" (21.80mm)	1.654" (42.00mm)	0.591" (15.00mm)

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.