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
ETD39/20/13-3C90-G1000 Ferrite Misc Ferroxcube	3,350	-	RFQ	Datasheet	-	Bulk	Active	ETD	ETD 39 x 20 x 13	3C90	-	150 nH	-	Gapped	89.0	-	0.737	92.2	125.0	123.0	11500.0	Uncoated	0.780" (19.80mm)	1.575" (40.00mm)	0.504" (12.80mm)
ETD39/20/13-3C90-G500 Ferrite Misc Ferroxcube	3,675	-	RFQ	Datasheet	-	Bulk	Active	ETD	ETD 39 x 20 x 13	3C90	-	190 nH	±6%	Gapped	170.0	-	0.737	92.2	125.0	123.0	11500.0	Uncoated	0.780" (19.80mm)	1.575" (40.00mm)	0.504" (12.80mm)
RM4/ILP-3C90 FERRITE CORE RM 3C90 2PC SET Ferroxcube	3,325	-	RFQ	Datasheet	-	Bulk	Active	RM	RM 4	3C90	-	-	-	Ungapped	-	-	1.19	17.3	14.5	11.3	251.0	Uncoated	0.307" (7.80mm)	0.433" (11.00mm)	0.386" (9.80mm)
RM4/ILP-3C94 Ferrite Misc Ferroxcube	4,602	-	RFQ	Datasheet	RM4/ILP	Bulk	Active	RM	RM 4	3C94	-	1.4 µH	±25%	Ungapped	1330.0	-	1.19	17.3	14.5	11.3	251.0	Uncoated	0.154" (3.90mm)	0.433" (11.00mm)	0.181" (4.60mm)
B65855A0025A038 FERRITE CORE EP 25NH T38 2PCS EPCOS - TDK Electronics	4,035	-	RFQ	Datasheet	EP5	Box	Active	EP	EP 5	T38	-	25 nH	±3%	Gapped	63.0	2300	3.14	9.73	3.09	2.3	30.0	Uncoated	0.112" (2.85mm)	0.242" (6.15mm)	0.154" (3.90mm)
RM6S/I-3H3 Ferrite Misc Ferroxcube	1,368	-	RFQ	Datasheet	-	Bulk	Active	RM	RM 6	3H3	-	2.35 µH	±25%	Ungapped	1470.0	-	0.784	29.2	37.0	31.2	1090.0	Uncoated	0.244" (6.20mm)	0.701" (17.90mm)	0.323" (8.20mm)
PLT30/20/3-3C92 Ferrite Misc Ferroxcube	1,736	-	RFQ	Datasheet	-	Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
B64290A0632X035 FERRITE CORE TOROID 5UH T35 EPCOS - TDK Electronics	3,579	-	RFQ	Datasheet	T20/10/7	Box	Active	Toroid	R 20 x 10 x 7	T35	0.787" (20.00mm)	5 µH	±25%	Ungapped	-	5100	1.3	43.55	33.63	-	1465.0	Uncoated	0.275" (7.00mm)	-	-
B65859A0000R045 FERRITE CORE EPX 1.9UH N45 EPCOS - TDK Electronics	3,685	-	RFQ	Datasheet	EPX10	Box	Active	EPX	EPX 10	N45	-	1.9 µH	-20%, +30%	Ungapped	2060.0	3800	1.37	21.7	15.9	13.2	345.0	Uncoated	0.205" (5.20mm)	0.465" (11.80mm)	0.309" (7.85mm)
PQ20/16-3F4 Ferrite Misc Ferroxcube	2,689	-	RFQ	Datasheet	-	Bulk	Active	PQ	PQ 20 x 16	3F4	-	-	-	Ungapped	-	-	0.607	37.6	61.9	59.1	2330.0	Uncoated	0.319" (8.10mm)	0.839" (21.30mm)	0.551" (14.00mm)
8998303021 FERRITE CORE EFD SET Fair-Rite Products Corp.	1,391	-	RFQ	Datasheet	-	Bulk	Active	EFD	-	-	-	-	±25%	Ungapped	-	2400	113.0	69.3	69.0	66.0	4260.0	Uncoated	-	1.181" (30.00mm)	-
ZW42109TC TOROID GREY COATED Magnetics, a division of Spang & Co.	1,886	-	RFQ	Datasheet	-	Bulk	Active	Toroid	-	W	0.848" (21.54mm)	8.4 µH	±30%	Ungapped	-	10000	-	50.3	34.4	-	1733.0	Epoxy	0.380" (9.65mm)	-	-
NW41510UG RM DESIGN SCP Magnetics, a division of Spang & Co.	4,260	-	RFQ	Datasheet	-	Bulk	Active	RM	-	W	-	6 µH	-	Ungapped	-	10000	-	23.2	24.8	8.55	574.0	Uncoated	0.205" (5.20mm)	0.575" (14.60mm)	0.268" (6.80mm)
NF42316UG RM DESIGN SCP Magnetics, a division of Spang & Co.	2,641	-	RFQ	Datasheet	-	Bulk	Active	RM	-	F	-	4.5 µH	±25%	Ungapped	-	3000	-	38.4	63.0	55.4	2440.0	Uncoated	0.323" (8.20mm)	0.913" (23.20mm)	0.433" (11.00mm)
EQK4128I060 KOOL MU 060 PERM EQ 4128 SIZE I Magnetics, a division of Spang & Co.	3,427	-	RFQ	Datasheet	-	Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
PP41717UG EP CORE Magnetics, a division of Spang & Co.	4,214	-	RFQ	Datasheet	-	Bulk	Active	EP	-	P	-	2.6 µH	-	Ungapped	-	2500	-	29.5	33.7	25.5	999.0	Uncoated	0.661" (16.80mm)	0.709" (18.00mm)	0.433" (11.00mm)
EFD30/15/9-3F3 Ferrite Misc Ferroxcube	1,787	-	RFQ	Datasheet	-	Bulk	Active	EFD	EFD 30 x 15 x 9	3F3	-	1.9 µH	±25%	Ungapped	1560.0	-	0.98	68.0	69.0	66.0	4700.0	Uncoated	0.591" (15.00mm)	1.181" (30.00mm)	0.358" (9.10mm)
9495110002 FERRITE CORE E 95 SET Fair-Rite Products Corp.	3,295	-	RFQ	Datasheet	-	Bulk	Active	E	-	95	-	-	±25%	Ungapped	-	3000	90.7	74.5	82.1	79.0	6110.0	Uncoated	0.634" (16.10mm)	-	-
WBC3/ERT-3S4-Z Ferrite Misc Ferroxcube	2,115	-	RFQ	Datasheet	-	Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
ER14.5/3/7-3F36-S FERRITE CORE ER 3F36 2PC SET Ferroxcube	3,689	-	RFQ	Datasheet	-	Bulk	Active	ER	ER 14.5 x 3 x 7	3F36	-	-	±25%	Ungapped	-	-	1.08	19.0	17.6	17.3	333.0	Uncoated	0.268" (6.80mm)	0.571" (14.50mm)	0.116" (2.95mm)

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.