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
7878400221 FERRITE CORE E 78 SET Fair-Rite Products Corp.	3,101	-	RFQ	Datasheet	-	Bulk	Active	E	-	78	-	-	±25%	Ungapped	-	2300	49.0	20.5	42.1	40.0	863.0	Uncoated	-	-	0.394" (10.00mm)
0077042A7 KOOL MU 026 PERM BLACK 040 SIZE Magnetics, a division of Spang & Co.	1,949	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mµ	0.400" (10.15mm)	14 nH	±8%	Ungapped	-	26	-	23.0	9.56	-	220.0	Uncoated	0.156" (3.96mm)	-	-
0077041A7 KOOL MU 060 PERM BLACK 040 SIZE Magnetics, a division of Spang & Co.	3,443	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	0.400" (10.15mm)	32 nH	±12%	Ungapped	-	60	-	23.0	9.57	-	220.0	Uncoated	0.156" (3.96mm)	-	-
0077844A7 KOOL MU 090 PERM BLACK 040 SIZE Magnetics, a division of Spang & Co.	2,369	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	0.400" (10.15mm)	48 nH	±12%	Ungapped	-	90	-	23.0	9.57	-	220.0	Uncoated	0.156" (3.96mm)	-	-
0077845A7 KOOL MU 075 PERM BLACK 040 SIZE Magnetics, a division of Spang & Co.	4,518	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mµ	0.400" (10.15mm)	40 nH	±12%	Ungapped	-	75	-	23.0	9.57	-	220.0	Uncoated	0.156" (3.96mm)	-	-
B62110A4071X022 FERRITE CORE EPCOS - TDK Electronics	2,480	-	RFQ	Datasheet	TUB4.1/1.5/4	Box	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
ZJ41206TC TOROID GREY COATED Magnetics, a division of Spang & Co.	1,849	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	J	0.525" (13.34mm)	5.64 µH	±20%	Ungapped	-	5000	-	25.0	22.0	-	550.0	Epoxy	0.272" (6.91mm)	-	-
TX13/7.9/6.4-3C92 Ferrite Misc Ferroxcube	4,803	-	RFQ	Datasheet	-	Bulk	Active	Toroid	TX 13 x 7.9 x 6.4	3C92	0.526" (13.35mm)	-	-	Ungapped	-	-	2.21	31.2	14.1	-	442.0	Epoxy	0.276" (7.00mm)	-	-
28T0562-300 FERRITE CORE TOROID 28 Laird-Signal Integrity Products	1,471	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	28	0.562" (14.27mm)	-	±25%	Ungapped	-	850	-	-	-	-	-	Uncoated	0.209" (5.30mm)	-	-
B64290A0658X035 FERRITE CORE TOROID 2.65UH T35 EPCOS - TDK Electronics	3,946	-	RFQ	Datasheet	T14/9/5	Box	Active	Toroid	R 14 x 9 x 5	T35	0.551" (14.00mm)	2.65 µH	±25%	Ungapped	-	6000	2.84	34.98	12.3	-	430.0	Uncoated	0.197" (5.00mm)	-	-
B65652A5000X000 FERRITE CORE EPCOS - TDK Electronics	2,319	-	RFQ	Datasheet	B65652	Tape & Reel (TR)	Obsolete	-	P 18 × 11	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
B64290L0644X038 FERRITE CORE TOROID 4.7UH T38 EPCOS - TDK Electronics	2,757	-	RFQ	Datasheet	TX13.3/8.3/5	Box	Active	Toroid	-	T38	0.567" (14.40mm)	4.7 µH	±30%	Ungapped	-	10000	2.67	32.7	12.27	-	401.0	Epoxy	0.234" (5.95mm)	-	-
E19/8/9-3F36-G100 FERRITE CORE E 3F36 Ferroxcube	1,826	-	RFQ	Datasheet	-	Bulk	Active	E	E 19 x 8 x 9	3F36	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.317" (8.05mm)	0.750" (19.05mm)	0.343" (8.70mm)
E19/8/9-3F36-G200 FERRITE CORE E 3F36 Ferroxcube	3,862	-	RFQ	Datasheet	-	Bulk	Active	E	E 19 x 8 x 9	3F36	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.317" (8.05mm)	0.750" (19.05mm)	0.343" (8.70mm)
B66379G0000X187 FERRITE CORE E N87 1PC EPCOS - TDK Electronics	4,830	-	RFQ	Datasheet	E19/8/5	Box	Active	E	E 19 x 8 x 5	N87	-	-	-	Ungapped	-	-	-	-	-	-	-	Uncoated	0.315" (8.00mm)	0.748" (19.00mm)	0.189" (4.80mm)
B64290L0690X038 FERRITE CORE TOROID T38 EPCOS - TDK Electronics	3,567	-	RFQ	Datasheet	TX9.53/4.75/2	Box	Active	Toroid	-	T38	-	-	-	Gapped	-	10000	-	-	-	-	-	Epoxy	-	-	-
B66413G0100X187 FERRITE CORE EFD N87 EPCOS - TDK Electronics	2,344	-	RFQ	Datasheet	EFD15/8/5	Box	Active	EFD	EFD 15 x 8 x 5	N87	-	-	-	Gapped	-	2200	2.27	34.0	15.0	12.2	510.0	Uncoated	0.295" (7.50mm)	0.591" (15.00mm)	0.183" (4.65mm)
B66413U0160K187 FERRITE CORE EFD N87 EPCOS - TDK Electronics	4,021	-	RFQ	Datasheet	EFD15/8/5	Box	Active	EFD	EFD 15 x 8 x 5	N87	-	-	-	Gapped	-	2200	2.27	34.0	15.0	12.2	510.0	Uncoated	0.295" (7.50mm)	0.591" (15.00mm)	0.183" (4.65mm)
PLT14/5/1.5-3E6 Ferrite Misc Ferroxcube	4,073	-	RFQ	Datasheet	-	Bulk	Active	PLT	PLT 14 x 5 x 1.5	3E6	-	-	-	Ungapped	-	-	1.16	16.7	14.5	14.5	240.0	Uncoated	0.059" (1.50mm)	0.551" (14.00mm)	0.197" (5.00mm)
FF42216EC E-CORE - FLAT BACK Magnetics, a division of Spang & Co.	3,303	-	RFQ	Datasheet	-	Bulk	Active	Planar E	-	F	-	6.131 µH	±25%	Ungapped	-	3000	-	32.5	78.5	76.0	2550.0	Uncoated	0.225" (5.72mm)	0.858" (21.80mm)	0.622" (15.80mm)

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.