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
SW41811UG ROUND-SLAB CORE W/HOLE Magnetics, a division of Spang & Co.	4,403	-	RFQ	Datasheet	-	Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
RJ41110UG R-RM DESIGN Magnetics, a division of Spang & Co.	3,366	-	RFQ	Datasheet	-	Bulk	Active	RM	-	J	-	1.973 µH	-	Ungapped	-	5000	-	20.6	10.8	7.9	222.0	Uncoated	0.205" (5.20mm)	0.433" (11.00mm)	0.175" (4.45mm)
B66370G0000X127 FERRITE CORE E N27 1PC EPCOS - TDK Electronics	2,621	-	RFQ	Datasheet	E34/14/9	Box	Active	E	E 34 x 14 x 9	N27	-	-	-	Ungapped	-	-	-	-	-	-	-	Uncoated	0.577" (14.65mm)	1.362" (34.60mm)	0.382" (9.70mm)
B65880E0000D001 SPULENKOERPER PQ32/30 SUMIKON EPCOS - TDK Electronics	2,008	-	RFQ	Datasheet	-	Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
EFD10/5/3-3C90-S FERRITE CORE EFD 3C90 2PC SET Ferroxcube	1,179	-	RFQ	Datasheet	-	Bulk	Active	EFD	EFD 10 x 5 x 3	3C90	-	-	±25%	Ungapped	1510.0	-	3.29	23.7	7.2	6.5	171.0	Uncoated	0.216" (5.50mm)	0.059" (1.50mm)	0.106" (2.70mm)
EFD10/5/3-3C94-S Ferrite Misc Ferroxcube	2,870	-	RFQ	Datasheet	-	Bulk	Active	EFD	EFD 10 x 5 x 3	3C94	-	585 nH	±25%	Ungapped	1510.0	-	3.29	23.7	7.2	6.5	171.0	Uncoated	0.205" (5.20mm)	0.413" (10.50mm)	0.106" (2.70mm)
TX26/15/10-3E27-M7 FERRITE CORE TOROID 3E+27 Ferroxcube	1,812	-	RFQ	Datasheet	-	Bulk	Active	Toroid	TX 26 x 15 x 10	3E27	1.061" (26.95mm)	-	±25%	Ungapped	7000.0	-	1.08	60.1	55.9	-	3360.0	Epoxy	0.429" (10.90mm)	-	-
PQ20/20-3C91 Ferrite Misc Ferroxcube	3,450	-	RFQ	Datasheet	-	Bulk	Active	PQ	PQ 20 x 20	3C91	-	3.58 µH	±25%	Ungapped	-	-	0.731	45.7	62.6	59.1	2850.0	Uncoated	0.398" (10.10mm)	0.839" (21.30mm)	0.551" (14.00mm)
PQ20/20-3C90 Ferrite Misc Ferroxcube	2,816	-	RFQ	Datasheet	-	Bulk	Active	PQ	PQ 20 x 20	3C90	-	2.82 µH	±25%	Ungapped	1640.0	-	0.731	45.7	62.6	59.1	2850.0	Uncoated	0.398" (10.10mm)	0.839" (21.30mm)	0.551" (14.00mm)
B65857C0250J087 FERRITE CORE EPX N87 EPCOS - TDK Electronics	2,729	-	RFQ	Datasheet	EPX9/9	Box	Active	EPX	EPX 7 x 9	N87	-	-	-	Gapped	-	2200	0.91	15.7	17.2	13.9	270.0	Uncoated	0.148" (3.75mm)	0.370" (9.40mm)	0.354" (9.00mm)
B66408G0500X187 FERRITE CORE EV N87 EPCOS - TDK Electronics	4,198	-	RFQ	Datasheet	EV25/13/13	Box	Active	EV	EV 25 x 13 x 13	N87	-	-	-	Gapped	-	2200	0.8	59.0	74.0	73.0	4370.0	Uncoated	0.504" (12.80mm)	0.984" (25.00mm)	0.500" (12.70mm)
B66408G0900X187 FERRITE CORE EV N87 EPCOS - TDK Electronics	3,806	-	RFQ	Datasheet	EV25/13/13	Box	Active	EV	EV 25 x 13 x 13	N87	-	-	-	Gapped	-	2200	0.8	59.0	74.0	73.0	4370.0	Uncoated	0.504" (12.80mm)	0.984" (25.00mm)	0.500" (12.70mm)
EFD15/8/5-3C96-S FERRITE CORE EFD 3C96 2PC SET Ferroxcube	1,433	-	RFQ	Datasheet	-	Bulk	Active	EFD	EFD 15 x 8 x 5	3C96	-	-	±25%	Ungapped	1520.0	-	2.27	34.0	15.0	12.2	510.0	Uncoated	0.295" (7.50mm)	0.591" (15.00mm)	0.183" (4.65mm)
RM5/ILP-3F36-A100 FERRITE CORE RM 100NH 3F36 2PC Ferroxcube	2,750	-	RFQ	Datasheet	-	Bulk	Active	RM	RM 5	3F36	-	100 nH	±3%	Gapped	57.0	-	0.935	17.5	24.5	18.1	430.0	Uncoated	0.421" (10.40mm)	0.587" (14.90mm)	0.484" (12.30mm)
RM5/ILP-3F36-A160 FERRITE CORE RM 160NH 3F36 2PC Ferroxcube	4,450	-	RFQ	Datasheet	-	Bulk	Active	RM	RM 5	3F36	-	160 nH	±3%	Gapped	91.0	-	0.935	17.5	24.5	18.1	430.0	Uncoated	0.421" (10.40mm)	0.587" (14.90mm)	0.484" (12.30mm)
9498112002 FERRITE CORE E SET Fair-Rite Products Corp.	1,001	-	RFQ	Datasheet	-	Bulk	Active	E	-	-	-	-	±25%	Ungapped	-	2400	81.0	69.7	86.0	79.0	5990.0	Uncoated	0.565" (14.35mm)	-	0.374" (9.50mm)
EFD15/8/5-3F4-A63-S Ferrite Misc Ferroxcube	2,655	-	RFQ	Datasheet	-	Bulk	Active	EFD	EFD 15 x 8 x 5	3F4	-	63 nH	±5%	Gapped	115.0	-	2.27	34.0	15.0	12.2	510.0	Uncoated	0.295" (7.50mm)	0.591" (15.00mm)	0.183" (4.65mm)
9578283402 FERRITE CORE EER 78 SET Fair-Rite Products Corp.	1,274	-	RFQ	Datasheet	-	Bulk	Active	EER	-	78	-	-	±25%	Ungapped	-	2300	87.0	74.4	85.2	77.0	6337.0	Uncoated	-	1.122" (28.50mm)	-
PQ20/16-3C96 FERRITE CORE PQ 3C96 2PC SET Ferroxcube	1,406	-	RFQ	Datasheet	-	Bulk	Active	PQ	PQ 20 x 16	3C96	-	-	±25%	Ungapped	-	-	0.607	37.6	61.9	59.1	2330.0	Uncoated	0.638" (16.20mm)	0.839" (21.30mm)	0.551" (14.00mm)
EP7-3F36-A63 Ferrite Misc Ferroxcube	2,206	-	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.