Ferrite Cores

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Mfr Part #	Quantity Available	Price	Series	Package	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

4078377511 FERRITE CORE ROD 78 Fair-Rite Products Corp.	15,322 In Stock	1 : ¥19.72000 Bulk	-	Bulk	Active	ROD	-	78	0.374" (9.50mm)	-	-	Ungapped	29.0	2300	-	25.0	7.07	-	-	Uncoated	-	2.756" (70.00mm)	-
UR64/40/20-3C90 FERRITE CORE UR 3C90 Ferroxcube	1,186 In Stock	1 : ¥82.03000 Bulk	-	Bulk	Active	UR	UR 64 x 40 x 20	3C90	-	-	-	-	-	-	-	-	-	-	-	Uncoated	1.594" (40.50mm)	2.520" (64.00mm)	0.945" (24.00mm)
U100/57/25-3C90 FERRITE CORE U Ferroxcube	292 In Stock	1 : ¥280.34000 Bulk	-	Bulk	Active	U	U 100 x 57 x 25	-	-	-	-	-	-	-	-	-	-	-	-	Uncoated	-	-	0.984" (25.00mm)
B67370A0002X187 FERRITE CORE U N87 1PC EPCOS - TDK Electronics	38 In Stock	1 : ¥861.58000 Box	U101/76/30	Box	Active	U	U 101 x 76 x 30	N87	-	-	-	Ungapped	-	-	-	-	-	-	-	Uncoated	2.992" (76.00mm)	3.976" (101.00mm)	1.181" (30.00mm)
4077375211 FERRITE CORE ROD 77 Fair-Rite Products Corp.	10,942 In Stock	1 : ¥14.03000 Bulk	-	Bulk	Active	ROD	-	77	0.372" (9.45mm)	-	-	Ungapped	29.0	2000	-	25.0	7.07	-	-	Uncoated	-	2.000" (50.80mm)	-
9277024002 FERRITE CORE U 77 Fair-Rite Products Corp.	554 In Stock	1 : ¥14.20000 Bulk	-	Bulk	Active	U	-	77	-	-	-	Ungapped	-	2000	112.0	93.0	83.0	-	7700.0	Uncoated	0.729" (18.60mm)	1.237" (31.42mm)	0.394" (10.00mm)
9277012002 FERRITE CORE U 77 Fair-Rite Products Corp.	287 In Stock	1 : ¥29.58000 Bulk	-	Bulk	Active	U	-	77	-	-	-	Ungapped	-	2000	138.0	135.0	98.0	-	13200.0	Uncoated	1.000" (25.40mm)	1.620" (41.15mm)	0.460" (11.68mm)
U46/40/28-3C90 FERRITE CORE U 3C90 Ferroxcube	327 In Stock	1 : ¥115.09000 Bulk	-	Bulk	Active	U	U 46 x 40 x 28	3C90	-	-	-	-	-	-	-	-	-	-	-	Uncoated	1.551" (39.40mm)	1.811" (46.00mm)	1.102" (28.00mm)
9077026002 FERRITE CORE U 77 Fair-Rite Products Corp.	1,903 In Stock	1 : ¥9.01000 Bulk	-	Bulk	Active	U	-	77	-	-	-	Ungapped	-	2000	176.0	71.0	40.0	-	2850.0	Uncoated	0.500" (12.70mm)	1.000" (25.40mm)	0.250" (6.35mm)
9277002002 FERRITE CORE U 77 Fair-Rite Products Corp.	397 In Stock	1 : ¥11.48000 Box	-	Box	Active	U	-	77	-	-	-	Ungapped	-	2000	139.0	95.0	68.0	-	6500.0	Uncoated	-	-	-
9277023002 FERRITE CORE U 77 Fair-Rite Products Corp.	397 In Stock	1 : ¥13.01000 Box	-	Box	Active	U	-	77	-	-	-	Ungapped	-	2000	116.0	78.0	67.0	-	5200.0	Uncoated	-	-	-
U67/27/14-3C91 FERRITE CORE U 3C91 Ferroxcube	1,192 In Stock	1 : ¥46.41000 Bulk	-	Bulk	Active	U	U 67 x 27 x 14	3C91	-	-	-	-	-	-	-	-	-	-	-	Uncoated	1.063" (27.00mm)	2.650" (67.30mm)	0.563" (14.30mm)
UR35/27.5/13-3C90 FERRITE CORE UR 3C90 Ferroxcube	284 In Stock	1 : ¥23.21000 Bulk	-	Bulk	Active	UR	UR 35 x 27.5 x 13	3C90	-	-	-	-	-	-	-	-	-	-	-	Uncoated	1.083" (27.50mm)	1.394" (35.40mm)	0.512" (13.00mm)
MACC0004 FERRITE CORE U AMORPHOUS Magnetics, a division of Spang & Co.	80 In Stock	1 : ¥129.88000 Bulk	-	Bulk	Active	U	-	Amorphous	-	-	-	Ungapped	-	-	-	107.0	124.0	-	-	Uncoated	1.004" (25.50mm)	1.102" (28.00mm)	0.591" (15.00mm)
MACC0010 FERRITE CORE U AMORPHOUS Magnetics, a division of Spang & Co.	40 In Stock	1 : ¥181.82000 Bulk	-	Bulk	Active	U	-	Amorphous	-	-	-	Ungapped	-	-	-	154.0	180.0	-	-	Uncoated	1.240" (31.50mm)	1.398" (35.50mm)	0.787" (20.00mm)
B67345B0003X095 FERRITE CORE U 4.1UH N95 EPCOS - TDK Electronics	7 In Stock	1 : ¥272.94000 Box	U93/76/16	Box	Active	U	U 93 x 76 x 16	N95	-	4.1 µH	-20%, +30%	Ungapped	2578.0	-	0.79	354.0	448.0	448.0	159000.0	Uncoated	0.839" (21.30mm)	3.661" (93.00mm)	0.630" (16.00mm)
0P49925UC FERRITE CORE U 5.5UH P Magnetics, a division of Spang & Co.	81 In Stock	1 : ¥290.11000 Bulk	-	Bulk	Active	U	-	P	-	5.5 µH	±25%	Ungapped	-	2500	-	308.0	645.0	-	199000.0	Uncoated	2.248" (57.10mm)	4.000" (101.60mm)	1.000" (25.40mm)
9077025002 FERRITE CORE U 77 Fair-Rite Products Corp.	0 In Stock Check Lead Time	1 : ¥9.86000 Bulk	-	Bulk	Active	U	-	77	-	-	-	Ungapped	-	2000	207.0	84.0	40.0	-	3360.0	Uncoated	-	1.000" (25.40mm)	0.250" (6.35mm)

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Ferrite Cores

Ferrite cores are a magnetic device used in the windings of transformers or other wound components. The chemical makeup of these devices help to prevent eddy currents. These are created in different form factors such as: E, toroid, ER, multi-hole, etc. and come in many different sizes. Key parameters are going to be the size, form factor or core type, and inductance factor.