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
B66335G2500X187 FERRITE CORE E N87 EPCOS - TDK Electronics	4,773	-	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)
B66335G0500X127 FERRITE CORE E N27 1PC EPCOS - TDK Electronics	4,679	-	RFQ	Datasheet	E55/28/21	Box	Active	E	E 55 x 28 x 21	N27	-	-	-	Gapped	-	-	-	-	-	-	-	Uncoated	1.094" (27.80mm)	2.165" (55.00mm)	0.827" (21.00mm)
B66335G2400X127 FERRITE CORE E N27 EPCOS - TDK Electronics	4,074	-	RFQ	Datasheet	E55/28/21	Box	Active	E	E 55 x 28 x 21	N27	-	-	-	-	-	2000	0.35	124.0	354.0	351.0	43900.0	Uncoated	1.094" (27.80mm)	2.165" (55.00mm)	0.827" (21.00mm)
B65664D0000R049 FERRITE CORE EPCOS - TDK Electronics	1,335	-	RFQ	Datasheet	P22/13	Box	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
B65665D0000R049 FERRITE CORE EPCOS - TDK Electronics	1,455	-	RFQ	Datasheet	P22/9	Box	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
0F44925TC TOROID UNCOATED Magnetics, a division of Spang & Co.	2,269	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	F	1.933" (49.10mm)	4.46 µH	±20%	Ungapped	-	3000	-	123.2	161.8	-	19927.0	Uncoated	0.750" (19.05mm)	-	-
B65815ER95 FERRITE CORE EPCOS - TDK Electronics	1,981	-	RFQ	Datasheet	*	Tape & Reel (TR)	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
B66335G0000X188 E55/28/21-N88 EPCOS - TDK Electronics	2,099	-	RFQ	Datasheet	-	Tray	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
00K5030B040 KOOL MU 5030 BLOCK Magnetics, a division of Spang & Co.	3,553	-	RFQ	Datasheet	-	Bulk	Active	I	-	Kool Mu	-	-	-	Ungapped	-	40	-	-	-	-	23000.0	Uncoated	1.193" (30.30mm)	1.988" (50.50mm)	0.591" (15.00mm)
00K5030B060 KOOL MU 5030 BLOCK Magnetics, a division of Spang & Co.	2,469	-	RFQ	Datasheet	-	Bulk	Active	I	-	Kool Mu	-	-	-	Ungapped	-	60	-	-	-	-	23000.0	Uncoated	1.193" (30.30mm)	1.988" (50.50mm)	0.591" (15.00mm)
ZJ44920TC TOROID GREY COATED Magnetics, a division of Spang & Co.	4,686	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	J	1.977" (50.22mm)	6.065 µH	±20%	Ungapped	-	5000	-	123.2	133.7	-	16466.0	Epoxy	0.655" (16.64mm)	-	-
00K5030B026 KOOL MU 5030 BLOCK Magnetics, a division of Spang & Co.	3,024	-	RFQ	Datasheet	-	Bulk	Active	I	-	Kool Mu	-	-	-	Ungapped	-	26	-	-	-	-	23000.0	Uncoated	1.193" (30.30mm)	1.988" (50.50mm)	0.591" (15.00mm)
0059355A2 EDGE 075 PERM GREEN 350 SIZE Magnetics, a division of Spang & Co.	4,064	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Edge	0.928" (23.57mm)	62 nH	±8%	Ungapped	-	75	-	58.5	38.8	-	2270.0	Uncoated	0.350" (8.90mm)	-	-
0059352A2 EDGE 026 PERM GREEN 350 SIZE Magnetics, a division of Spang & Co.	2,247	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Edge	0.928" (23.57mm)	22 nH	±8%	Ungapped	-	26	-	58.8	38.8	-	2280.0	Uncoated	0.350" (8.90mm)	-	-
0059354A2 EDGE 090 PERM GREEN 350 SIZE Magnetics, a division of Spang & Co.	2,045	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Edge	0.928" (23.57mm)	76 nH	±8%	Ungapped	-	90	-	58.5	38.8	-	2270.0	Uncoated	0.350" (8.90mm)	-	-
RM12/I-3C97 FERRITE CORE RM 3C97 2PC SET Ferroxcube	2,485	-	RFQ	Datasheet	-	Bulk	Active	RM	RM 12	3C97	-	-	±25%	Ungapped	2090.0	-	0.388	56.6	146.0	125.0	8340.0	Uncoated	0.965" (24.50mm)	1.472" (37.40mm)	0.634" (16.10mm)
P26/16-3F36-A250 Ferrite Misc Ferroxcube	1,289	-	RFQ	Datasheet	P26/16	Bulk	Active	P	P 26 x 16	3F36	1.004" (25.50mm)	250 nH	±3%	Gapped	80.0	-	0.4	37.6	93.9	77.4	3530.0	Uncoated	0.317" (8.05mm)	-	-
P26/16-3F46-A250 Ferrite Misc Ferroxcube	1,990	-	RFQ	Datasheet	-	Bulk	Active	P	P 26 x 16	3F46	1.004" (25.50mm)	250 nH	±3%	Gapped	80.0	-	0.4	37.6	93.9	77.4	3530.0	Uncoated	0.317" (8.05mm)	-	-
P26/16-3F36-A630 Ferrite Misc Ferroxcube	1,082	-	RFQ	Datasheet	P26/16	Bulk	Active	P	P 26 x 16	3F36	1.004" (25.50mm)	630 nH	±3%	Gapped	200.0	-	0.4	37.6	93.9	77.4	3530.0	Uncoated	0.317" (8.05mm)	-	-
P26/16-3F46-A630 Ferrite Misc Ferroxcube	2,442	-	RFQ	Datasheet	-	Bulk	Active	P	P 26 x 16	3F46	1.004" (25.50mm)	630 nH	±3%	Gapped	200.0	-	0.4	37.6	93.9	77.4	3530.0	Uncoated	0.317" (8.05mm)	-	-

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.