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
0J40503TC TOROID UNCOATED Magnetics, a division of Spang & Co.	1,582	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	J	0.155" (3.94mm)	1.475 µH	±20%	Ungapped	-	5000	-	9.2	2.0	-	19.0	Uncoated	0.100" (2.54mm)	-	-
28T0145-600 FERRITE CORE TOROID 812NH 28 Laird-Signal Integrity Products	1,278	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	28	0.145" (3.68mm)	812 nH	±25%	Ungapped	-	850	-	-	-	-	-	Uncoated	0.234" (5.95mm)	-	-
0C40502TC TOROID Magnetics, a division of Spang & Co.	4,644	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	C	0.155" (3.94mm)	129 nH	±25%	Ungapped	-	900	-	9.21	1.05	-	9.68	Uncoated	0.050" (1.27mm)	-	-
33T0157-900 FERRITE CORE TOROID 2.172UH 33 Laird-Signal Integrity Products	2,384	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	33	0.157" (4.00mm)	2.172 µH	±30%	Ungapped	-	2300	-	-	-	-	-	Uncoated	0.270" (6.85mm)	-	-
33T0231-00P FERRITE CORE TOROID 454NH 33 Laird-Signal Integrity Products	4,989	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	33	0.231" (5.87mm)	454 nH	±20%	Ungapped	-	2700	6.34	13.03	2.06	-	-	Parylene	0.061" (1.55mm)	-	-
28T0201-100 FERRITE CORE TOROID 727NH 28 Laird-Signal Integrity Products	4,795	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	28	0.201" (5.10mm)	727 nH	±25%	Ungapped	-	850	-	-	-	-	-	Uncoated	0.134" (3.40mm)	-	-
0F40601TC TOROID UNCOATED Magnetics, a division of Spang & Co.	4,006	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	F	0.230" (5.84mm)	585 nH	±20%	Ungapped	-	3000	-	13.0	2.0	-	26.7	Uncoated	0.060" (1.52mm)	-	-
MHB2-3.6/2.1/3-3C90 Ferrite Misc Ferroxcube	4,646	-	RFQ	Datasheet	-	Bulk	Active	Multi-Hole (2)	-	3C90	-	-	-	Ungapped	-	-	-	-	-	-	-	Uncoated	0.142" (3.60mm)	0.118" (3.00mm)	0.083" (2.10mm)
ROD5/18-3S3 Ferrite Misc Ferroxcube	2,215	-	RFQ	Datasheet	-	Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
35T0231-30P FERRITE CORE TOROID Laird-Signal Integrity Products	4,134	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	-	0.231" (5.87mm)	-	±20%	-	-	5000	-	-	-	-	-	Parylene	0.101" (2.56mm)	-	-
MHB2-3.6/2.1/3-3C11 Ferrite Misc Ferroxcube	1,029	-	RFQ	Datasheet	-	Bulk	Active	Multi-Hole (2)	-	3C11	-	-	-	Ungapped	-	-	-	-	-	-	-	Uncoated	0.142" (3.60mm)	0.118" (3.00mm)	0.083" (2.10mm)
TUB4/2/5-3B1 Ferrite Misc Ferroxcube	3,743	-	RFQ	Datasheet	-	Bulk	Active	Tube	TUB 4 x 2 x 5	3B1	0.157" (4.00mm)	-	-	Ungapped	-	-	-	-	-	-	-	Uncoated	-	0.197" (5.00mm)	-
33N0277-200 FERRITE CORE 2 HOLE 33 Laird-Signal Integrity Products	2,627	-	RFQ	Datasheet	-	Bulk	Active	Multi-Hole (2)	-	33	-	-	-	Ungapped	-	2300	-	-	-	-	-	Uncoated	0.122" (3.10mm)	0.277" (7.04mm)	0.160" (4.06mm)
0W40601TC TOROID UNCOATED Magnetics, a division of Spang & Co.	4,905	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	W	0.230" (5.84mm)	1.96 µH	±30%	Ungapped	-	10000	-	13.0	2.0	78.5	27.0	Uncoated	0.060" (1.52mm)	-	-
YJ40401TC TOROID-PARYLENE COATED Magnetics, a division of Spang & Co.	3,647	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	J	0.201" (5.11mm)	950 nH	±20%	Ungapped	-	5000	-	10.2	1.5	-	15.7	Parylene	0.060" (1.52mm)	-	-
TUB3.5/1.3/7.5-3B1 Ferrite Misc Ferroxcube	2,519	-	RFQ	Datasheet	-	Bulk	Active	Tube	TUB 3.5 x 1.3 x 7.5	3B1	0.138" (3.50mm)	-	-	Ungapped	-	-	-	-	-	-	-	Uncoated	-	0.295" (7.50mm)	-
TUB3.5/1.3/7.5-3C90 Ferrite Misc Ferroxcube	4,653	-	RFQ	Datasheet	-	Bulk	Active	Tube	TUB 3.5 x 1.3 x 7.5	3C90	0.138" (3.50mm)	-	-	Ungapped	-	-	-	-	-	-	-	Uncoated	-	0.295" (7.50mm)	-
35T0231-10P FERRITE CORE TOROID 1.983UH 35 Laird-Signal Integrity Products	2,710	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	35	0.231" (5.87mm)	1.983 µH	±20%	Ungapped	-	5000	3.08	12.99	4.22	-	-	Parylene	0.121" (3.07mm)	-	-
28T0231-10P FERRITE CORE TOROID 337NH 28 Laird-Signal Integrity Products	2,590	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	28	0.231" (5.87mm)	337 nH	±20%	Ungapped	-	850	3.08	12.99	4.22	-	-	Parylene	0.121" (3.07mm)	-	-
0R41126EC ER CORE Magnetics, a division of Spang & Co.	3,822	-	RFQ	Datasheet	-	Bulk	Active	ER	-	R	-	1.4 µH	-	Ungapped	-	2300	-	14.7	11.9	10.3	174.0	Uncoated	0.096" (2.45mm)	0.433" (11.00mm)	0.236" (6.00mm)

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.