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
B66417U0250K187 FERRITE CORE EFD N87 EPCOS - TDK Electronics	782	-	RFQ	Datasheet	EFD20/10/7	Box	Active	EFD	EFD 20 x 10 x 7	N87	-	-	±10%	Gapped	300.0	2200	1.52	47.0	31.0	31.0	1460.0	Uncoated	0.394" (10.00mm)	0.787" (20.00mm)	0.262" (6.65mm)
B66302G0000X187 FERRITE CORE E N87 1PC EPCOS - TDK Electronics	725	-	RFQ	Datasheet	E8.8/4/2	Box	Active	E	E 8 x 8	N87	-	-	-	Ungapped	-	-	-	-	-	-	-	Uncoated	0.161" (4.10mm)	0.354" (9.00mm)	0.079" (2.00mm)
EFD25/13/9-3F46 FERRITE CORE EFD 3F46 Ferroxcube	704	-	RFQ	Datasheet	-	Bulk	Active	EFD	EFD 25 x 13 x 9	3F46	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.492" (12.50mm)	0.984" (25.00mm)	0.358" (9.10mm)
B66311G0250X187 FERRITE CORE E N87 1PC EPCOS - TDK Electronics	460	-	RFQ	Datasheet	E20/10/6	Tray	Active	E	E 20 x 10 x 6	N87	-	-	-	Gapped	-	-	-	-	-	-	-	Uncoated	0.394" (10.00mm)	0.803" (20.40mm)	0.232" (5.90mm)
EFD25/13/9-3F36 FERRITE CORE EFD 3F36 Ferroxcube	2,060	-	RFQ	Datasheet	-	Bulk	Active	EFD	EFD 25 x 13 x 9	3F36	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.492" (12.50mm)	0.984" (25.00mm)	0.358" (9.10mm)
4077375411 FERRITE CORE ROD 77 Fair-Rite Products Corp.	4,396	-	RFQ	Datasheet	-	Bulk	Active	ROD	-	77	0.374" (9.50mm)	-	-	Ungapped	29.0	2000	-	25.0	7.07	-	-	Uncoated	-	1.625" (41.28mm)	-
B66358G1000X187 FERRITE CORE ETD N87 1PC EPCOS - TDK Electronics	4,973	-	RFQ	Datasheet	ETD29/16/10	Box	Active	ETD	ETD 29 x 16 x 10	N87	-	-	-	Gapped	-	-	-	-	-	-	-	Uncoated	0.630" (16.00mm)	1.205" (30.60mm)	0.386" (9.80mm)
B66329G0000X187 FERRITE CORE E N87 1PC EPCOS - TDK Electronics	4,979	-	RFQ	Datasheet	E42/21/20	Box	Active	E	E 42 x 21 x 20	N87	-	-	-	Ungapped	-	-	-	-	-	-	-	Uncoated	0.835" (21.20mm)	1.654" (42.00mm)	0.787" (20.00mm)
E38/8/25-3F36 FERRITE CORE E 3F36 Ferroxcube	4,628	-	RFQ	Datasheet	-	Bulk	Active	E	E 38 x 8 x 25	3F36	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.325" (8.26mm)	1.500" (38.10mm)	1.000" (25.40mm)
B66365G0000X197 FERRITE CORE ETD N97 1PC EPCOS - TDK Electronics	1,295	-	RFQ	Datasheet	ETD44/22/15	Box	Active	ETD	ETD 44 x 22 x 15	N97	-	-	-	Ungapped	-	-	-	-	-	-	-	Uncoated	0.886" (22.50mm)	1.724" (43.80mm)	0.598" (15.20mm)
CMC030020012H NANOCRYSTALLINE CORE TOROID 55UH Magnetics, a division of Spang & Co.	4,817	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Nanocrystalline	1.181" (30.00mm)	55 µH	±30%	Ungapped	-	80000	-	79.0	49.0	-	-	Polyester	0.472" (12.00mm)	-	-
5975021921 FERRITE CORE TOROID 6.5UH 75 Fair-Rite Products Corp.	3,778	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	75	1.984" (50.40mm)	6.5 µH	-30%, +25%	Ungapped	-	5000	1.059	127.0	120.0	-	15300.0	Plastic	0.663" (16.85mm)	-	-
0P48020EC FERRITE CORE E 5.08UH P Magnetics, a division of Spang & Co.	3,786	-	RFQ	Datasheet	-	Bulk	Active	E	-	P	-	5.08 µH	-	Ungapped	-	2500	-	184.0	392.0	392.0	72300.0	Uncoated	1.500" (38.10mm)	3.150" (80.00mm)	0.780" (19.80mm)
B66395G0000X197 FERRITE CORE ETD N97 1PC EPCOS - TDK Electronics	2,689	-	RFQ	Datasheet	ETD54/28/19	Box	Active	ETD	ETD 54 x 28 x 19	N97	-	-	-	Ungapped	-	-	-	-	-	-	-	Uncoated	1.094" (27.80mm)	2.156" (54.50mm)	0.760" (19.30mm)
RM12/I-3C95 FERRITE CORE RM 3C95 2PC SET Ferroxcube	1,358	-	RFQ	Datasheet	-	Bulk	Active	RM	RM 12	3C95	-	-	-	-	-	-	-	-	-	-	-	Uncoated	0.965" (24.50mm)	1.472" (37.40mm)	0.634" (16.10mm)
PQ35/35-3F46 FERRITE CORE PQ 3F46 2PC SET Ferroxcube	4,118	-	RFQ	Datasheet	-	Bulk	Active	PQ	PQ 35 x 35	3F46	-	-	±25%	Ungapped	-	-	0.454	86.1	190.0	162.0	16300.0	Uncoated	1.366" (34.70mm)	1.421" (36.10mm)	1.024" (26.00mm)
B65879Q0100K095 FERRITE CORE PQ 100NH N95 EPCOS - TDK Electronics	2,763	-	RFQ	Datasheet	PQ32/30	Bulk	Active	PQ	PQ 32 x 30	N95	-	100 nH	±10%	Distributed Gapped	-	3000	0.441	67.8	153.8	127.5	10440.0	Uncoated	0.597" (15.17mm)	1.260" (32.00mm)	0.866" (22.00mm)
B65879Q0150K095 FERRITE CORE PQ 150NH N95 EPCOS - TDK Electronics	2,127	-	RFQ	Datasheet	PQ32/30	Bulk	Active	PQ	PQ 32 x 30	N95	-	150 nH	±10%	Distributed Gapped	-	3000	0.441	67.8	153.8	127.5	10440.0	Uncoated	0.597" (15.17mm)	1.260" (32.00mm)	0.866" (22.00mm)
0077726A7 FERRITE CORE TOROID 175NH KOOLMU Magnetics, a division of Spang & Co.	4,625	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	Kool Mu	2.028" (51.51mm)	175 nH	±8%	Ungapped	-	60	-	113.5	262.0	-	29700.0	Coated	0.850" (21.59mm)	-	-
ETD59/31/22-3C95 FERRITE CORE ETD 3C95 Ferroxcube	3,458	-	RFQ	Datasheet	-	Bulk	Active	ETD	ETD 59 x 31 x 22	3C95	-	-	-	-	-	-	-	-	-	-	-	Uncoated	1.220" (31.00mm)	2.354" (59.80mm)	0.852" (21.65mm)

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.