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
T60004L2100W723 W723 VACUUMSCHMELZE	2,038	-	RFQ	Datasheet	-	Box	Active	Toroid	-	Nanocrystalline	4.094" (104.00mm)	10 µH	-	Ungapped	-	-	-	283.0	146.0	-	-	Epoxy	0.906" (23.00mm)	-	-
P66/56-3C11 Ferrite Misc Ferroxcube	3,031	-	RFQ	Datasheet	-	Bulk	Active	P	P 66 x 56	3C11	2.610" (66.29mm)	-	±25%	Ungapped	-	-	0.172	123.0	717.0	591.0	88200.0	Uncoated	-	-	-
PM87/70-3C90 Ferrite Misc Ferroxcube	4,041	-	RFQ	Datasheet	-	Bulk	Active	PM	PM 87 x 70	3C90	3.425" (87.00mm)	15 µH	±25%	Ungapped	1900.0	-	0.161	146.0	910.0	700.0	133000.0	Uncoated	1.378" (35.00mm)	-	-
0055517A2 MPP 060 PERM GREY 520 SIZE Magnetics, a division of Spang & Co.	2,114	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	MPP	2.051" (52.10mm)	150 nH	±8%	Ungapped	-	60	-	109.0	217.0	-	23500.0	Uncoated	0.598" (15.20mm)	-	-
0055111A9 MPP 026 PERM GREY 109 SIZE Magnetics, a division of Spang & Co.	1,447	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	MPP	2.250" (57.15mm)	33 nH	±8%	Ungapped	-	26	-	143.0	144.0	-	20700.0	Uncoated	0.550" (13.97mm)	-	-
B64290L0705X037 R140/103/25 T37 TOROID EPCOS - TDK Electronics	3,893	-	RFQ	Datasheet	B64290	Tray	Active	Toroid	R 140 x 103 x 25	T37	5.661" (143.80mm)	8.4 µH	±25%	Ungapped	-	4000	0.82	375.8	458.9	-	172440.0	Epoxy	1.071" (27.20mm)	-	-
H65/38/25C-HP2F FERRITE CORE TOROID 17.0H HP2F Maanshan New Conda Magnetic Industrial Co.,Ltd.	2,125	-	RFQ	Datasheet	H65/38/25C		Active	Toroid	H65 x 38 x 25	HP2F	2.559" (65.00mm)	17 µH	±30%	Ungapped	-	7000	0.47	154.0	330.0	330.0	50897.0	Epoxy	0.984" (25.00mm)	-	-
P66/56-3C95 FERRITE CORE P 3C95 2PC SET Ferroxcube	1,946	-	RFQ	Datasheet	-	Bulk	Active	P	P 66 x 56	3C95	2.610" (66.29mm)	-	±25%	Ungapped	-	-	0.172	123.0	717.0	591.0	88200.0	Uncoated	2.256" (57.30mm)	-	-
C055894M4 MPP 060 PERM GREY 930 SIZE Magnetics, a division of Spang & Co.	2,354	-	RFQ	Datasheet	-	Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
C055930W4 MPP 125 PERM GREY 930 SIZE Magnetics, a division of Spang & Co.	4,933	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	MPP	1.090" (27.69mm)	157 nH	±8%	Ungapped	-	125	-	63.5	65.4	-	4150.0	Coated	0.470" (11.94mm)	-	-
C055930M4 MPP 125 PERM GREY 930 SIZE Magnetics, a division of Spang & Co.	4,604	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	MPP	1.090" (27.69mm)	157 nH	±8%	Ungapped	-	125	-	63.5	65.4	-	4150.0	Coated	0.470" (11.94mm)	-	-
H78/50.5/25-HP3 FERRITE CORE TOROID 15.2H HP3 Maanshan New Conda Magnetic Industrial Co.,Ltd.	3,220	-	RFQ	Datasheet	H78/50.5/25		Active	Toroid	H78 x 50.5 x 25	HP3	3.071" (78.00mm)	15.2 µH	±30%	Ungapped	-	10000	0.58	195.6	338.1	338.1	66079.0	Uncoated	0.984" (25.00mm)	-	-
0058869A2 HIGH FLUX 014 PERM KHAKI 866 SIZ Magnetics, a division of Spang & Co.	1,291	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	High Flux	3.063" (77.80mm)	16 nH	±8%	Ungapped	-	14	-	196.1	176.0	-	34500.0	Uncoated	0.500" (12.70mm)	-	-
0P49966FB FERRITE BLOCK Magnetics, a division of Spang & Co.	3,793	-	RFQ	Datasheet	-	Bulk	Active	Planar E/I	-	P	-	-	±25%	Ungapped	-	2500	-	-	-	-	-	Uncoated	2.598" (66.00mm)	4.094" (104.00mm)	0.728" (18.50mm)
0R49966FB FERRITE BLOCK Magnetics, a division of Spang & Co.	2,094	-	RFQ	Datasheet	-	Bulk	Active	Planar E/I	-	R	-	-	±25%	Ungapped	-	2300	-	-	-	-	-	Uncoated	2.598" (66.00mm)	4.094" (104.00mm)	0.728" (18.50mm)
0055515A2 MPP 026 PERM GREY 520 SIZE Magnetics, a division of Spang & Co.	2,089	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	MPP	2.051" (52.10mm)	65 nH	±8%	Ungapped	-	26	-	109.0	217.0	-	23500.0	Uncoated	0.598" (15.20mm)	-	-
0070099A7 KOOL MU ULTRA 060 PERM BLACK Magnetics, a division of Spang & Co.	3,167	-	RFQ	Datasheet	-	Tray	Discontinued at Digi-Key	Toroid	-	Kool Mµ	4.000" (101.60mm)	111 nH	±8%	Ungapped	-	60	-	243.0	358.0	-	87000.0	Uncoated	0.650" (16.51mm)	-	-
C055084A2 MPP 300 PERM GREY 089 SIZE Magnetics, a division of Spang & Co.	4,567	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	MPP	1.875" (47.63mm)	427 nH	±8%	Ungapped	-	300	-	116.0	134.0	-	15600.0	Coated	0.635" (16.13mm)	-	-
B64290L0705X065 R140/103/25 T65 RINGKERN EPCOS - TDK Electronics	4,334	-	RFQ	Datasheet	-	Tray	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
B64290A0084X035 FERRITE CORE TOROID EPCOS - TDK Electronics	2,971	-	RFQ	Datasheet	T102/66/15	Box	Active	Toroid	-	-	-	-	-	Ungapped	-	-	-	-	-	-	-	Uncoated	-	-	-

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.