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
TX42/26/13-3E10 Ferrite Misc Ferroxcube	3,966	-	RFQ	Datasheet	TX42/26/13	Bulk	Active	TX	TX 42 x 26 x 13	3E10	1.697" (43.15mm)	12.2 µH	±20%	Ungapped	10000.0	-	1.076	103.0	95.8	-	9860.0	Epoxy	0.531" (13.50mm)	-	-
ETD59/31/22-3C94-G200 FERRITE CORE ETD 3C94 Ferroxcube	3,505	-	RFQ	Datasheet	-	Bulk	Active	ETD	ETD 59 x 31 x 22	3C94	-	-	-	-	-	-	-	-	-	-	-	Uncoated	1.220" (31.00mm)	2.354" (59.80mm)	0.852" (21.65mm)
P18/11-4C65 Ferrite Misc Ferroxcube	4,624	-	RFQ	Datasheet	P18/11	Bulk	Active	P	P 18 x 11	4C65	0.724" (18.40mm)	260 nH	±25%	Ungapped	123.0	-	0.597	25.8	43.3	36.0	1120.0	Uncoated	0.209" (5.30mm)	-	-
0075716A7 75 SERIES 060 PERM BLACK 715 SIZ Magnetics, a division of Spang & Co.	3,608	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	75	2.000" (50.80mm)	73 nH	±8%	Ungapped	-	60	-	127.0	125.0	-	15900.0	Uncoated	0.530" (13.46mm)	-	-
0T45724EC LAM SIZE E-CORE Magnetics, a division of Spang & Co.	3,170	-	RFQ	Datasheet	-	Bulk	Active	E	-	T	-	10.44 µH	±25%	Ungapped	-	3000	-	107.0	337.0	337.0	36000.0	Uncoated	0.929" (23.60mm)	2.209" (56.10mm)	0.740" (18.80mm)
0075717A7 75 SERIES 026 PERM BLACK 715 SIZ Magnetics, a division of Spang & Co.	4,024	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	75	2.000" (50.80mm)	32 nH	±8%	Ungapped	-	26	-	127.0	125.0	-	15900.0	Uncoated	0.530" (13.46mm)	-	-
0075721A7 75 SERIES 040 PERM BLACK 715 SIZ Magnetics, a division of Spang & Co.	1,609	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	75	2.000" (50.80mm)	49 nH	±8%	Ungapped	-	40	-	127.0	125.0	-	15900.0	Uncoated	0.530" (13.46mm)	-	-
0077089A7 KOOL MU 125 PERM BLACK 089 SIZE Magnetics, a division of Spang & Co.	2,977	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	1.840" (46.74mm)	178 nH	±8%	Ungapped	-	125	-	116.0	134.0	-	15600.0	Uncoated	0.600" (15.24mm)	-	-
0077095A7 KOOL MU 040 PERM BLACK 089 SIZE Magnetics, a division of Spang & Co.	1,056	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	1.840" (46.74mm)	57 nH	±8%	Ungapped	-	40	-	116.0	134.0	-	15600.0	Uncoated	0.600" (15.24mm)	-	-
0077094A7 KOOL MU 075 PERM BLACK 089 SIZE Magnetics, a division of Spang & Co.	3,351	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	1.840" (46.74mm)	107 nH	±8%	Ungapped	-	75	-	116.0	134.0	-	15600.0	Uncoated	0.600" (15.24mm)	-	-
0077092A7 KOOL MU 014 PERM BLACK 089 SIZE Magnetics, a division of Spang & Co.	4,586	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	1.840" (46.74mm)	20 nH	±8%	Ungapped	-	14	-	116.0	134.0	-	15600.0	Uncoated	0.600" (15.24mm)	-	-
0077093A7 KOOL MU 090 PERM BLACK 089 SIZE Magnetics, a division of Spang & Co.	3,880	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	1.840" (46.74mm)	128 nH	±8%	Ungapped	-	90	-	116.0	134.0	-	15600.0	Uncoated	0.600" (15.24mm)	-	-
0077091A7 KOOL MU 026 PERM BLACK 089 SIZE Magnetics, a division of Spang & Co.	4,642	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	1.840" (46.74mm)	37 nH	±8%	Ungapped	-	26	-	116.0	134.0	-	15600.0	Uncoated	0.600" (15.24mm)	-	-
0059208A2 EDGE 026 PERM GREEN 206 SIZE Magnetics, a division of Spang & Co.	2,571	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Edge	0.800" (20.32mm)	14 nH	-	Ungapped	-	26	-	50.9	22.1	-	1200.0	Uncoated	0.250" (6.35mm)	-	-
E55/28/25-3C95-G2000 FERRITE CORE E 3C95 Ferroxcube	1,930	-	RFQ	Datasheet	-	Bulk	Active	E	E 55 x 28 x 25	3C95	-	-	-	-	-	-	-	-	-	-	-	Uncoated	1.083" (27.50mm)	2.213" (56.20mm)	0.984" (25.00mm)
B66335G0060X187 FERRITE CORE E N87 EPCOS - TDK Electronics	4,939	-	RFQ	Datasheet	E55/28/21	Box	Active	E	E 55 x 28 x 21	N87	-	-	-	Gapped	-	2200	0.35	124.0	354.0	351.0	43900.0	Uncoated	1.094" (27.80mm)	2.165" (55.00mm)	0.827" (21.00mm)
B66335G1500X187 FERRITE CORE E N87 1PC EPCOS - TDK Electronics	1,903	-	RFQ	Datasheet	E55/28/21	Box	Active	E	E 55 x 28 x 21	N87	-	-	-	Gapped	-	-	-	-	-	-	-	Uncoated	1.094" (27.80mm)	2.165" (55.00mm)	0.827" (21.00mm)
B65651T0063A033 FERRITE CORE M33 EPCOS - TDK Electronics	1,698	-	RFQ	Datasheet	P18/11	Box	Active	-	P 18 x 11	M33	0.724" (18.40mm)	-	-	Gapped	-	750	0.6	25.9	43.0	-	1114.0	Uncoated	0.209" (5.30mm)	-	-
E55/28/21-3F3 Ferrite Misc Ferroxcube	1,784	-	RFQ	Datasheet	-	Bulk	Active	E	E 55 x 28 x 21	3F3	-	5.7 µH	±25%	Ungapped	1590.0	-	0.35	124.0	353.0	345.0	44000.0	Uncoated	1.083" (27.50mm)	2.213" (56.20mm)	0.827" (21.00mm)
0077540A7 KOOL MU 125 PERM BLACK 540 SIZE Magnetics, a division of Spang & Co.	2,824	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mµ	2.126" (54.00mm)	217 nH	±8%	Ungapped	-	125	-	126.0	174.0	-	22000.0	Uncoated	0.567" (14.40mm)	-	-

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.