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
0074337A7 X FLUX ULTRA 026 PERM BROWN 337 Magnetics, a division of Spang & Co.	3,113	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	X FLUX ULTRA	5.219" (132.56mm)	68 nH	±8%	Ungapped	-	26	-	324.0	678.0	-	220000.0	Uncoated	1.000" (25.40mm)	-	-
0079337A7 FERRITE CORE TOROID 68NH KOOL MU Magnetics, a division of Spang & Co.	3,281	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu MAX	5.274" (133.96mm)	68 nH	±8%	Ungapped	-	26	-	324.0	678.0	-	220000.0	Coated	1.055" (26.80mm)	-	-
0077164A7 FERRITE CORE TOROID 42NH KOOL MU Magnetics, a division of Spang & Co.	4,980	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	6.555" (166.50mm)	42 nH	±8%	Ungapped	-	14	-	412.0	987.0	-	407000.0	Coated	1.305" (33.15mm)	-	-
0077165A7 FERRITE CORE TOROID 78NH KOOL MU Magnetics, a division of Spang & Co.	1,338	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	6.555" (166.50mm)	78 nH	±8%	Ungapped	-	26	-	412.0	987.0	-	407000.0	Coated	1.305" (33.15mm)	-	-
0058620A2 FERRITE CORE TOROID 394NH HI FLX Magnetics, a division of Spang & Co.	1,302	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	High Flux	2.484" (63.09mm)	394 nH	±8%	Ungapped	-	125	-	144.0	360.0	-	51800.0	Coated	1.020" (25.91mm)	-	-
B67374G0000X197 FERRITE CORE U N97 1PC EPCOS - TDK Electronics	3,764	-	RFQ	Datasheet	U141/78/30	Box	Active	U	U 141 x 78 x 30	N97	-	-	-	Ungapped	-	-	-	-	-	-	-	Uncoated	3.091" (78.50mm)	5.551" (141.00mm)	1.181" (30.00mm)
B64290L0705X830 FERRITE CORE TOROID 6.2UH N30 EPCOS - TDK Electronics	1,807	-	RFQ	Datasheet	TX140/103/25	Bulk	Active	Toroid	R 140 x 103 x 25	N30	-	6.2 µH	±25%	Ungapped	-	4000	0.82	375.8	458.9	-	172440.0	Uncoated	-	-	-
0070337A7 KOOL MU ULTRA 060 PERM BLACK Magnetics, a division of Spang & Co.	2,692	-	RFQ	Datasheet	-	Tray	Active	Toroid	-	Kool Mµ	5.219" (132.56mm)	68 nH	±8%	Ungapped	-	26	-	324.0	678.0	-	220000.0	Uncoated	1.000" (25.40mm)	-	-
C055104A2 MPP 300 PERM GREY 109 SIZE Magnetics, a division of Spang & Co.	1,799	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	MPP	2.285" (58.04mm)	374 nH	±8%	Ungapped	-	300	-	143.0	144.0	-	20700.0	Coated	0.585" (14.86mm)	-	-
MACC1000 AMORPHOUS CUT CORE Magnetics, a division of Spang & Co.	4,698	-	RFQ	Datasheet	-	Bulk	Active	U	-	Amorphous	-	-	-	Ungapped	-	-	-	422.0	2300.0	-	-	Uncoated	3.366" (85.50mm)	4.173" (106.00mm)	3.346" (85.00mm)
CF292 T0602 COSMO INDIA TOROIDAL RINGS MN-Z Cosmo Ferrites Ltd.	450	-	RFQ	Datasheet	-	Bulk	Active	Toroid	Toroid 6 x 4 x 2	3F3	-	-	±25%	Ungapped	-	-	7.75	15.3	1.97	-	30.2	Parylene	0.083" (2.10mm)	-	-
CF130 T1004 COSMO INDIA TOROIDAL RINGS MN-Z Cosmo Ferrites Ltd.	450	-	RFQ	Datasheet	-	Bulk	Active	Toroid	R 10 x 6 x 4	N30	0.394" (10.00mm)	1.76 µH	±25%	Ungapped	-	4300	3.07	24.07	7.83	-	188.0	Uncoated	0.157" (4.00mm)	-	-
CF130 EE1905A COSMO INDIA E CORE MN-ZN Cosmo Ferrites Ltd.	450	-	RFQ	Datasheet	-	Bulk	Active	E	E 19 x 8 x 5	3C91	-	1.5 µH	±25%	Ungapped	-	-	1.77	39.9	22.6	-	900.0	Uncoated	0.319" (8.10mm)	0.752" (19.10mm)	0.185" (4.70mm)
CF297A T1605C COSMO INDIA TOROIDAL RINGS MN-Z Cosmo Ferrites Ltd.	450	-	RFQ	Datasheet	-	Bulk	Active	Toroid	TX 16 x 9.1 x 4.7	3C94	0.635" (16.13mm)	-	±20%	Ungapped	-	2300	2.53	37.2	14.7	-	548.0	Epoxy	0.195" (4.95mm)	-	-
B66453G0000X192 FERRITE CORE ELP N92 1PC EPCOS - TDK Electronics	511	-	RFQ	Datasheet	ELP18/4/10	Box	Active	ELP	ELP 18 x 4 x 10	N92	-	-	-	Ungapped	-	-	-	-	-	-	-	Uncoated	0.157" (4.00mm)	0.709" (18.00mm)	0.394" (10.00mm)
T60004-L2030-W676 FERRITE CORE TOROID 26.5UH VACUUMSCHMELZE	4,870	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	-	1.272" (32.30mm)	26.5 µH	-	Ungapped	-	-	-	86.4	27.0	-	-	Epoxy	0.689" (17.50mm)	-	-
B64290L0755X046 FERRITE CORE TOROID 28UH T46 EPCOS - TDK Electronics	1,921	-	RFQ	Datasheet	B64290	Bulk	Obsolete	Toroid	-	T46	1.551" (39.40mm)	28 µH	±30%	Ungapped	-	8000	0.36	82.97	232.48	-	19289.0	Epoxy	1.055" (26.80mm)	-	-
RM14/I-3C96 FERRITE CORE RM 3C96 2PC SET Ferroxcube	2,124	-	RFQ	Datasheet	-	Bulk	Active	RM	RM 14	3C96	-	-	±25%	Ungapped	-	-	0.353	70.0	198.0	168.0	13900.0	Uncoated	1.185" (30.10mm)	1.661" (42.20mm)	0.748" (19.00mm)
RM14/I-3F3-A250 Ferrite Misc Ferroxcube	1,447	-	RFQ	Datasheet	-	Bulk	Active	RM	RM 14	3F3	-	250 nH	±3%	Gapped	70.0	-	0.353	70.0	198.0	168.0	13900.0	Uncoated	0.593" (15.05mm)	1.661" (42.20mm)	0.748" (19.00mm)
0076726A7 KOOL MU HF 060 PERM BLACK 725 SI Magnetics, a division of Spang & Co.	4,426	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mµ	1.990" (50.55mm)	175 nH	±8%	Ungapped	-	60	-	113.5	262.0	-	29700.0	Uncoated	0.820" (20.83mm)	-	-

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.