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
0F40603TC TOROID UNCOATED Magnetics, a division of Spang & Co.	2,341	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	F	0.230" (5.84mm)	1.225 µH	±20%	Ungapped	-	3000	-	13.0	4.3	-	56.0	Uncoated	0.125" (3.18mm)	-	-
28T0231-20P FERRITE CORE TOROID 351NH 28 Laird-Signal Integrity Products	3,241	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	28	0.231" (5.87mm)	351 nH	±20%	Ungapped	-	850	2.95	12.99	4.4	-	-	Parylene	0.126" (3.20mm)	-	-
35T0231-20P FERRITE CORE TOROID Laird-Signal Integrity Products	4,180	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	-	0.231" (5.87mm)	-	±20%	-	-	5000	-	-	-	-	-	Coated	0.126" (3.20mm)	-	-
35T0231-10Q FERRITE CORE TOROID 1.983UH 35 Laird-Signal Integrity Products	2,176	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	35	0.232" (5.89mm)	1.983 µH	±20%	Ungapped	-	5000	3.0	12.96	4.31	-	-	Parylene	0.122" (3.10mm)	-	-
YP40601TC TOROID-PARYLENE COATED Magnetics, a division of Spang & Co.	1,343	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	P	0.244" (6.20mm)	488 nH	±25%	Ungapped	-	2500	-	13.0	2.0	-	26.7	Parylene	0.070" (1.78mm)	-	-
28N0277-200 FERRITE CORE 2 HOLE 28 Laird-Signal Integrity Products	3,189	-	RFQ	Datasheet	-	Bulk	Active	Multi-Hole (2)	-	28	-	-	-	Ungapped	-	850	-	-	-	-	-	Uncoated	0.122" (3.10mm)	0.277" (7.04mm)	0.160" (4.06mm)
TC3.4/1.8/1.3-3E27 Ferrite Misc Ferroxcube	2,914	-	RFQ	Datasheet	-	Bulk	Active	Toroid	Toroid 3.4 x 1.8 x 1.3	3E27	0.142" (3.61mm)	660 nH	±20%	Ungapped	5500.0	-	7.93	7.62	0.96	-	7.3	Parylene	0.057" (1.45mm)	-	-
0P40603TC TOROID UNCOATED Magnetics, a division of Spang & Co.	4,006	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	P	0.230" (5.84mm)	1.02 µH	±25%	Ungapped	-	2500	-	13.0	4.3	-	56.0	Uncoated	0.125" (3.18mm)	-	-
0F41003TC TOROID UNCOATED Magnetics, a division of Spang & Co.	2,286	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	F	0.375" (9.53mm)	1.314 µH	±20%	Ungapped	-	3000	-	20.7	7.3	-	151.0	Uncoated	0.125" (3.18mm)	-	-
ROD4/15-3C90-D FERRITE CORE ROD 3C90 Ferroxcube	2,415	-	RFQ	Datasheet	-	Bulk	Active	ROD	ROD 4 x 15	3C90	0.157" (4.00mm)	-	-	-	-	-	-	-	-	-	-	Uncoated	-	0.591" (15.00mm)	-
0P41308IC IC CORE Magnetics, a division of Spang & Co.	4,215	-	RFQ	Datasheet	-	Bulk	Active	ER	-	P	-	1.9 µH	-	Ungapped	-	2500	-	15.9	19.8	19.2	315.0	Uncoated	0.043" (1.10mm)	0.504" (12.80mm)	0.343" (8.70mm)
0R41308IC IC CORE Magnetics, a division of Spang & Co.	4,829	-	RFQ	Datasheet	-	Bulk	Active	ER	-	R	-	1.8 µH	-	Ungapped	-	2300	-	15.9	19.8	19.2	315.0	Uncoated	0.043" (1.10mm)	0.504" (12.80mm)	0.343" (8.70mm)
TC3.4/1.8/1.3-3E6 Ferrite Misc Ferroxcube	2,504	-	RFQ	Datasheet	-	Bulk	Active	Toroid	Toroid 3.4 x 1.8 x 1.3	3E6	0.135" (3.43mm)	1.58 µH	±30%	Ungapped	10000.0	-	7.93	7.62	0.96	-	7.3	Parylene	0.050" (1.27mm)	-	-
TUB3.9/1.5/5.5-4B1 Ferrite Misc Ferroxcube	1,031	-	RFQ	Datasheet	-	Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
ROD1.5/10-4B1-D FERRITE CORE ROD Ferroxcube	4,643	-	RFQ	Datasheet	-	Bulk	Active	ROD	ROD 1.5 x 10	-	0.059" (1.50mm)	-	-	-	-	-	-	-	-	-	-	Uncoated	-	0.394" (10.00mm)	-
0J40603TC TOROID UNCOATED Magnetics, a division of Spang & Co.	3,125	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	J	0.230" (5.84mm)	2.04 µH	±20%	Ungapped	-	5000	-	13.0	4.3	-	56.0	Uncoated	0.125" (3.18mm)	-	-
0T40601TC TOROID UNCOATED Magnetics, a division of Spang & Co.	4,696	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	T	0.230" (5.84mm)	592 nH	±25%	Ungapped	-	3000	-	13.0	2.0	-	26.7	Uncoated	0.060" (1.52mm)	-	-
0P41003TC TOROID UNCOATED Magnetics, a division of Spang & Co.	1,106	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	P	0.375" (9.53mm)	1.095 µH	±25%	Ungapped	-	2500	-	20.7	7.3	-	151.0	Uncoated	0.125" (3.18mm)	-	-
33N0277-000 FERRITE CORE 2 HOLE 33 Laird-Signal Integrity Products	2,441	-	RFQ	Datasheet	-	Bulk	Active	Multi-Hole (2)	-	33	-	-	-	Ungapped	-	2300	-	-	-	-	-	Uncoated	0.244" (6.20mm)	0.277" (7.04mm)	0.160" (4.06mm)
0P40906EC ER CORE Magnetics, a division of Spang & Co.	3,889	-	RFQ	Datasheet	-	Bulk	Active	ER	-	P	-	1.053 µH	-	Ungapped	-	2500	-	14.2	8.47	7.6	120.0	Uncoated	0.096" (2.45mm)	0.374" (9.50mm)	0.197" (5.00mm)

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.