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
0078454A7 X FLUX 125 PERM BROWN 454 SIZE Magnetics, a division of Spang & Co.	1,433	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	XFlux	1.689" (42.90mm)	224 nH	±8%	Ungapped	-	125	-	103.0	148.0	-	15100.0	Uncoated	0.640" (16.26mm)	-	-
0078450A7 X FLUX 040 PERM BROWN 454 SIZE Magnetics, a division of Spang & Co.	4,481	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	XFlux	1.689" (42.90mm)	72 nH	±8%	Ungapped	-	40	-	102.0	147.5	-	15100.0	Uncoated	0.640" (16.26mm)	-	-
0078451A7 X FLUX 060 PERM BROWN 454 SIZE Magnetics, a division of Spang & Co.	1,104	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	XFlux	1.689" (42.90mm)	108 nH	±8%	Ungapped	-	60	-	102.0	147.5	-	15100.0	Uncoated	0.640" (16.26mm)	-	-
B66367G3000X127 FERRITE CORE ETD N27 EPCOS - TDK Electronics	3,077	-	RFQ	Datasheet	ETD49/25/16	Box	Active	ETD	ETD 49 x 25 x 16	N27	-	-	-	Gapped	-	2000	0.54	114.0	211.0	209.0	24100.0	Uncoated	0.980" (24.90mm)	1.909" (48.50mm)	0.657" (16.70mm)
B65651D0160A041 FERRITE CORE N41 EPCOS - TDK Electronics	3,073	-	RFQ	Datasheet	P18/11	Box	Active	-	P 18 x 11	N41	0.724" (18.40mm)	-	-	Gapped	-	2800	0.6	25.9	43.0	-	1114.0	Uncoated	0.209" (5.30mm)	-	-
B66335G1500X192 E55/28/21 N92 GAP 1.5+- EPCOS - TDK Electronics	1,136	-	RFQ	Datasheet	-	Tray	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
E55/28/21-3F36 FERRITE CORE E 3F36 Ferroxcube	3,463	-	RFQ	Datasheet	-	Bulk	Active	E	E 55 x 28 x 21	3F36	-	-	-	-	-	-	-	-	-	-	-	Uncoated	1.083" (27.50mm)	2.213" (56.20mm)	0.827" (21.00mm)
E56/24/19-3C91-G1000 FERRITE CORE E 3C91 Ferroxcube	4,906	-	RFQ	Datasheet	-	Bulk	Active	E	E 56 x 24 x 19	3C91	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.929" (23.60mm)	2.209" (56.10mm)	0.740" (18.80mm)
E56/24/19-3C91-G500 FERRITE CORE E 3C91 Ferroxcube	1,141	-	RFQ	Datasheet	-	Bulk	Active	E	E 56 x 24 x 19	3C91	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.929" (23.60mm)	2.209" (56.10mm)	0.740" (18.80mm)
PQ40/30-3C94 FERRITE CORE PQ 3C94 2PC SET Ferroxcube	1,986	-	RFQ	Datasheet	-	Bulk	Active	PQ	PQ 40 x 30	3C94	-	-	±25%	Ungapped	1890.0	-	0.383	81.0	212.0	174.0	17100.0	Uncoated	1.181" (30.00mm)	1.634" (41.50mm)	1.102" (28.00mm)
E55/28/21-3C97 Ferrite Misc Ferroxcube	1,508	-	RFQ	Datasheet	-	Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
C058206A5 OBSOLETE HIGH FLUX 125 PERM KHAK Magnetics, a division of Spang & Co.	4,584	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	High Flux	0.830" (21.08mm)	68 nH	±8%	Ungapped	-	125	-	50.9	22.1	-	1120.0	Coated	0.280" (7.11mm)	-	-
B64290L0048X037 FERRITE CORE TOROID 7.6UH T37 EPCOS - TDK Electronics	1,398	-	RFQ	Datasheet	TX34/20.5/12.5	Box	Active	Toroid	-	T37	1.397" (35.50mm)	7.6 µH	±25%	Ungapped	-	6000	0.99	82.06	82.6	-	6778.0	Epoxy	0.535" (13.60mm)	-	-
PQ35/35-3C90-E315 Ferrite Misc Ferroxcube	4,235	-	RFQ	Datasheet	PQ35/35	Bulk	Active	PQ	PQ 35 x 35	3C90	-	315 nH	±3%	Gapped	114.0	-	0.454	86.1	190.0	162.0	16300.0	Uncoated	0.683" (17.35mm)	1.421" (36.10mm)	1.024" (26.00mm)
PQ35/35-3C91-A1000 Ferrite Misc Ferroxcube	3,984	-	RFQ	Datasheet	PQ35/35	Bulk	Active	PQ	PQ 35 x 35	3C91	-	1 µH	-	Gapped	-	-	0.454	86.1	190.0	162.0	16300.0	Uncoated	0.683" (17.35mm)	1.421" (36.10mm)	1.024" (26.00mm)
PQ35/35-3C94-E315 Ferrite Misc Ferroxcube	2,216	-	RFQ	Datasheet	PQ35/35	Bulk	Active	PQ	PQ 35 x 35	3C94	-	315 nH	±3%	Gapped	114.0	-	0.454	86.1	190.0	162.0	16300.0	Uncoated	0.683" (17.35mm)	1.421" (36.10mm)	1.024" (26.00mm)
PLT58/38/4-3C92 FERRITE CORE PLT 3C92 Ferroxcube	2,127	-	RFQ	Datasheet	-	Bulk	Active	PLT	PLT 58 x 38 x 4	3C92	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.161" (4.10mm)	2.299" (58.40mm)	1.500" (38.10mm)
TX42/26/13-3E25 Ferrite Misc Ferroxcube	2,987	-	RFQ	Datasheet	TX42/26/13	Bulk	Active	Toroid	TX 42 x 26 x 13	3E25	1.656" (42.05mm)	6.425 µH	±25%	Ungapped	-	5500	1.076	103.0	95.8	-	9860.0	Epoxy	0.512" (13.00mm)	-	-
0055050AY MPP 125 PERM AY 050 SIZE Magnetics, a division of Spang & Co.	3,554	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	MPP	0.500" (12.70mm)	56 nH	±8%	Ungapped	-	125	-	31.2	10.9	-	340.0	Uncoated	0.187" (4.75mm)	-	-
0059382A2 EDGE 026 PERM GREEN 380 SIZE Magnetics, a division of Spang & Co.	3,810	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Edge	0.680" (17.27mm)	19 nH	±8%	Ungapped	-	26	-	41.4	23.2	-	960.0	Uncoated	0.250" (6.35mm)	-	-

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.