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
EC70/34/17-3C94-G500 Ferrite Misc Ferroxcube	3,971	-	RFQ	Datasheet	-	Bulk	Active	EC	EC 70 x 34 x 17	3C94	-	3.9 µH	±25%	Gapped	-	-	-	144.0	279.0	211.0	40100.0	Uncoated	1.358" (34.50mm)	2.823" (71.70mm)	0.646" (16.40mm)
EC70/34/17-3C94-G200 Ferrite Misc Ferroxcube	3,656	-	RFQ	Datasheet	-	Bulk	Active	EC	EC 70 x 34 x 17	3C94	-	3.9 µH	±25%	Gapped	550.0	-	-	144.0	279.0	211.0	40100.0	Uncoated	1.358" (34.50mm)	2.823" (71.70mm)	0.646" (16.40mm)
EC70/34/17-3C94-G1000 Ferrite Misc Ferroxcube	1,366	-	RFQ	Datasheet	-	Bulk	Active	EC	EC 70 x 34 x 17	3C94	-	3.9 µH	±25%	Gapped	136.0	-	-	144.0	279.0	211.0	40100.0	Uncoated	1.358" (34.50mm)	2.823" (71.70mm)	0.646" (16.40mm)
E56/24/19-3C94-G500 FERRITE CORE E 3C94 Ferroxcube	2,864	-	RFQ	Datasheet	-	Bulk	Active	E	E 56 x 24 x 19	3C94	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.929" (23.60mm)	2.209" (56.10mm)	0.740" (18.80mm)
TX42/26/18-3E25 Ferrite Misc Ferroxcube	1,221	-	RFQ	Datasheet	TX42/26/18	Bulk	Active	Toroid	TX 42 x 26 x 18	3E25	1.656" (42.05mm)	-	-	Ungapped	-	-	0.769	103.0	134.0	-	13810.0	Epoxy	0.709" (18.00mm)	-	-
B66385G0000X187 FERRITE CORE E N87 1PC EPCOS - TDK Electronics	4,514	-	RFQ	Datasheet	E56/24/19	Box	Active	E	E 56 x 24 x 19	N87	-	-	-	Ungapped	-	-	-	-	-	-	-	Uncoated	0.929" (23.60mm)	2.209" (56.10mm)	0.740" (18.80mm)
RM12/I-3C97-A400 FERRITE CORE RM 400NH 3C97 2PC Ferroxcube	1,909	-	RFQ	Datasheet	-	Bulk	Active	RM	RM 12	3C97	-	400 nH	±3%	Gapped	123.0	-	0.388	56.6	146.0	125.0	8340.0	Uncoated	0.965" (24.50mm)	1.472" (37.40mm)	0.634" (16.10mm)
RM12/I-3C97-A630 FERRITE CORE RM 630NH 3C97 2PC Ferroxcube	3,001	-	RFQ	Datasheet	-	Bulk	Active	RM	RM 12	3C97	-	630 nH	±3%	Gapped	194.0	-	0.388	56.6	146.0	125.0	8340.0	Uncoated	0.965" (24.50mm)	1.472" (37.40mm)	0.634" (16.10mm)
00K8020U026 KOOL MU 8020 U CORE Magnetics, a division of Spang & Co.	4,280	-	RFQ	Datasheet	-	Bulk	Active	U	-	Kool Mu	-	64 nH	±8%	Ungapped	-	26	-	273.0	195.0	-	53200.0	Uncoated	1.500" (38.10mm)	3.150" (80.00mm)	0.780" (19.80mm)
0J43622UG POT CORE Magnetics, a division of Spang & Co.	3,398	-	RFQ	Datasheet	-	Bulk	Active	P	-	J	1.397" (35.50mm)	17.5 µH	-	Ungapped	-	5000	-	53.2	202.0	172.0	10700.0	Uncoated	0.431" (10.95mm)	-	-
ETD59/31/22-3C95-G1000 FERRITE CORE ETD 3C95 Ferroxcube	3,150	-	RFQ	Datasheet	-	Bulk	Active	ETD	ETD 59 x 31 x 22	3C95	-	-	-	-	-	-	-	-	-	-	-	Uncoated	1.220" (31.00mm)	2.354" (59.80mm)	0.852" (21.65mm)
ETD59/31/22-3C95-G500 FERRITE CORE ETD 3C95 Ferroxcube	4,555	-	RFQ	Datasheet	-	Bulk	Active	ETD	ETD 59 x 31 x 22	3C95	-	-	-	-	-	-	-	-	-	-	-	Uncoated	1.220" (31.00mm)	2.354" (59.80mm)	0.852" (21.65mm)
E55/28/21-3F3-E630 Ferrite Misc Ferroxcube	4,325	-	RFQ	Datasheet	-	Bulk	Active	E	E 55 x 28 x 21	3F3	-	630 nH	±10%	Gapped	176.0	-	0.35	124.0	353.0	345.0	44000.0	Uncoated	1.083" (27.50mm)	2.213" (56.20mm)	0.827" (21.00mm)
P42/29-3C81 FERRITE CORE P 11.5UH 2PC SET Ferroxcube	2,963	-	RFQ	Datasheet	-	Bulk	Obsolete	P (Pot Core)	P 42 x 29	-	1.669" (42.40mm)	11.5 µH	±25%	Ungapped	2370.0	-	0.259	68.6	265.0	214.0	18200.0	Uncoated	1.157" (29.40mm)	-	-
CAP0102B1 CAP (FOR 00K102TC SEG TOROID) Magnetics, a division of Spang & Co.	4,841	-	RFQ	Datasheet	-	Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
CAP0133B1 CAP (FOR 00K133TC SEG TOROID) Magnetics, a division of Spang & Co.	2,317	-	RFQ	Datasheet	-	Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
0W45724EC E-CORE Magnetics, a division of Spang & Co.	4,060	-	RFQ	Datasheet	-	Bulk	Active	E	-	W	-	24 µH	-	Ungapped	-	10000	-	107.0	337.0	337.0	36000.0	Uncoated	0.929" (23.60mm)	2.209" (56.10mm)	0.740" (18.80mm)
E58/11/38-3C97-A400-E FERRITE CORE E 3C97 Ferroxcube	4,352	-	RFQ	Datasheet	-	Bulk	Active	E	E 58 x 11 x 38	3C97	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.413" (10.50mm)	2.299" (58.40mm)	1.500" (38.10mm)
E58/11/38-3C97-A400-P FERRITE CORE E 3C97 Ferroxcube	4,581	-	RFQ	Datasheet	-	Bulk	Active	E	E 58 x 11 x 38	3C97	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.413" (10.50mm)	2.299" (58.40mm)	1.500" (38.10mm)
E58/11/38-3C97-A630-E FERRITE CORE E 3C97 Ferroxcube	4,847	-	RFQ	Datasheet	-	Bulk	Active	E	E 58 x 11 x 38	3C97	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.413" (10.50mm)	2.299" (58.40mm)	1.500" (38.10mm)

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.