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
T19/11/15-3C11 Ferrite Misc Ferroxcube	1,674	-	RFQ	Datasheet	-	Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
ER9.5/2.5/5-3C97-A100-S FERRITE CORE ER 100NH 3C97 2PC Ferroxcube	2,482	-	RFQ	Datasheet	-	Bulk	Active	ER	ER 9.5 x 2.5 x 5	3C97	-	100 nH	±5%	Gapped	133.0	-	1.67	14.2	8.47	7.6	120.0	Uncoated	-	0.374" (9.50mm)	0.197" (5.00mm)
ER9.5/2.5/5-3F36-A100-S FERRITE CORE ER 100NH 3F36 2PC Ferroxcube	2,390	-	RFQ	Datasheet	-	Bulk	Active	ER	ER 9.5 x 2.5 x 5	3F36	-	100 nH	±5%	Gapped	133.0	-	1.67	14.2	8.47	7.6	120.0	Uncoated	-	0.374" (9.50mm)	0.197" (5.00mm)
ER9.5/2.5/5-3F46-A100-S FERRITE CORE ER 100NH 3F46 2PC Ferroxcube	3,503	-	RFQ	Datasheet	-	Bulk	Active	ER	ER 9.5 x 2.5 x 5	3F46	-	100 nH	±5%	Gapped	133.0	-	1.67	14.2	8.47	7.6	120.0	Uncoated	-	0.374" (9.50mm)	0.197" (5.00mm)
ER9.5/2.5/5-3F36-A160-S Ferrite Misc Ferroxcube	1,344	-	RFQ	Datasheet	-	Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
B66300G0000X101 FERRITE CORE E K1 EPCOS - TDK Electronics	3,214	-	RFQ	Datasheet	E6.3	Box	Active	E	E 6 x 3	K1	-	-	-	-	-	80	3.7	12.2	3.3	2.6	40.3	Uncoated	0.114" (2.90mm)	0.248" (6.30mm)	0.079" (2.00mm)
B65839A0043A038 EP7 T38 43 +3% -3 EPCOS - TDK Electronics	3,036	-	RFQ	Datasheet	-	Tray	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
B64290L0632X065 FERRITE CORE TOROID 5.05UH T65 EPCOS - TDK Electronics	4,541	-	RFQ	Datasheet	TX20/10/7	Box	Active	Toroid	-	T65	0.835" (21.20mm)	5.05 µH	±30%	Ungapped	-	5200	1.3	43.55	33.63	-	1465.0	Epoxy	0.319" (8.10mm)	-	-
EQK2619E040L101 KOOL MU 040 PERM EQ 2619 SIZE Magnetics, a division of Spang & Co.	4,599	-	RFQ	Datasheet	-	Bulk	Active	EQ	-	Kool Mu	-	110 nH	-	Ungapped	-	40	-	54.7	-	-	6550.0	Uncoated	0.748" (19.00mm)	1.043" (26.50mm)	-
0077312A7 KOOL MU 026 PERM BLACK 310 SIZE Magnetics, a division of Spang & Co.	4,369	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	0.900" (22.86mm)	19 nH	±8%	Ungapped	-	26	-	56.7	31.7	-	1800.0	Uncoated	0.300" (7.60mm)	-	-
0077316A7 KOOL MU 040 PERM BLACK 310 SIZE Magnetics, a division of Spang & Co.	3,051	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	0.900" (22.86mm)	29 nH	±8%	Ungapped	-	40	-	56.7	31.7	-	1800.0	Uncoated	0.300" (7.60mm)	-	-
0077314A7 KOOL MU 090 PERM BLACK 310 SIZE Magnetics, a division of Spang & Co.	1,147	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	0.900" (22.86mm)	65 nH	±8%	Ungapped	-	90	-	56.7	31.7	-	1800.0	Uncoated	0.300" (7.60mm)	-	-
0W42507TC TOROID UNCOATED Magnetics, a division of Spang & Co.	3,585	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	W	0.998" (25.34mm)	7.825 µH	±30%	Ungapped	-	10000	-	61.5	38.4	-	2361.0	Uncoated	0.312" (7.92mm)	-	-
XW40705TC TOROID BLACK COATED Magnetics, a division of Spang & Co.	1,482	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	W	0.318" (8.08mm)	8.35 µH	±30%	Ungapped	-	10000	-	14.9	9.96	-	149.0	Coated	0.201" (5.10mm)	-	-
EQK2619E060L101 KOOL MU 060 PERM EQ 2619 SIZE Magnetics, a division of Spang & Co.	3,656	-	RFQ	Datasheet	-	Bulk	Active	EQ	-	Kool Mu	-	165 nH	-	Ungapped	-	60	-	54.7	-	-	6550.0	Uncoated	0.748" (19.00mm)	1.043" (26.50mm)	-
RP41912UG SQ CORE M DESIGN Magnetics, a division of Spang & Co.	4,834	-	RFQ	Datasheet	-	Bulk	Active	RM	-	P	-	2.169 µH	-	Ungapped	-	2500	-	27.0	31.0	22.6	837.0	Uncoated	0.244" (6.20mm)	0.720" (18.30mm)	0.323" (8.20mm)
EFD30/15/9-3C96-A160 FERRITE CORE EFD 3C96 Ferroxcube	4,201	-	RFQ	Datasheet	-	Bulk	Active	EFD	EFD 30 x 15 x 9	3C96	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.591" (15.00mm)	1.181" (30.00mm)	0.358" (9.10mm)
EQ20/R-3F36 FERRITE CORE EQ 3F36 Ferroxcube	1,507	-	RFQ	Datasheet	-	Bulk	Active	EQ	EQ 20	3F36	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.551" (14.00mm)	0.787" (20.00mm)	0.248" (6.30mm)
EQ20/R-3F46 FERRITE CORE EQ 3F46 Ferroxcube	1,930	-	RFQ	Datasheet	-	Bulk	Active	EQ	EQ 20	3F46	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.551" (14.00mm)	0.787" (20.00mm)	0.248" (6.30mm)
EFD30/15/9-3C97 Ferrite Misc Ferroxcube	4,130	-	RFQ	Datasheet	-	Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-

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.