Ferrite Beads are very similar in shape to toroids. The greatest distinguishing characteristic of beads is the application in which they are used. Beads generally have a length to outside diameter ratio greater than one. The most popular uses of ferrite beads are as EMI suppressors. They can be placed over the leads of an electrical component to prevent spurious signals. This application dictates that impedance rather than inductance be controlled. Thus bead specifications will often reference inductance but have a definite impedance minimum. Beads are offered in a variety of materials and can be manufactured in any of MMG's materials in order to optimize the part for a given application.

Core P/N		Units		O.D.		I.D.		Len		C1 (cm)		le (cm)		Ae (cm)		Ve (cm)
E_ _-1420-100/1		in. mm		0.070 1.778		0.035 0.889		0.039 0.991		91.5		0.3872		0.00423		0.00164
E_ _-3D4N-290/1		in. mm		0.163 4.140		0.079 2.007		0.118 2.997		28.9		0.8860		0.03061		0.02712
E_ _-3K4N-1S0/1		in. mm		0.163 4.140		0.062 1.575		0.125 3.175		20.5		0.7718		0.03770		0.02909
E_ _-3K4N-1T0/1		in. mm		0.163 4.140		0.063 1.600		0.125 3.175		20.8		0.7790		0.03742		0.02915
E_ _-3N3Y-0X0/1		in. mm		0.138 3.505		0.032 0.813		0.128 3.251		13.2		0.4859		0.03674		0.01785
E_ _-383Y-1E0/1		in. mm		0.138 3.505		0.049 1.245		0.113 2.870		21.1		0.6278		0.02969		0.01864
E_ _-7V4N-2G0/1		in. mm		0.163 4.140		0.086 2.184		0.275 6.985		14.1		0.9289		0.06603		0.06133
E_ _-EAAQ-5C0/1		in. mm		0.375 9.525		0.187 4.750		0.500 12.700		7.1		2.0711		0.29128		0.60326
E_ _-EAEA-870/1		in. mm		0.500 12.700		0.287 7.290		0.500 12.700		8.9		2.9843		0.33486		0.99933
E_ _-X5G2-750/1		in. mm		0.562 14.275		0.250 6.350		1.125 28.575		2.7		2.9108		1.07232		3.12131
E_ _-6R3Y-1C0/1		in. mm		0.138 3.505		0.047 1.194		0.236 5.994		9.7		0.6126		0.06295		0.03856
E_ _-4K5Q-1F0/1		in. mm		0.200 5.080		0.050 1.270		0.160 4.064		11.2		0.7375		0.06613		0.04877
E_ _-BF5Q-2V0/1		in. mm		0.200 5.080		0.100 2.540		0.400 10.160		8.9		1.1062		0.12399		0.13716
E_ _-754N-1S0/1		in. mm		0.163 4.140		0.062 1.575		0.250 6.350		10.2		0.7718		0.07540		0.05819
E_ _-3N3Y-1C0/1		in. mm		0.138 3.505		0.047 1.194		0.128 3.251		17.9		0.6126		0.03414		0.02092
E_ _-3N3Y-1G0/1		in. mm		0.138 3.505		0.051 1.295		0.128 3.251		19.4		0.6426		0.03310		0.02127
E_ _-3N3Y-1S0/1		in. mm		0.138 3.505		0.062 1.575		0.128 3.251		24.2		0.7188		0.02976		0.02139
E_ _-4K4Q-1F0/1		in. mm		0.200 5.080		0.050 1.270		0.160 4.064		11.2		0.7375		0.06613		0.04877
E_ _-4K5Q-2V0/1		in. mm		0.200 5.080		0.100 2.540		0.160 4.064		22.3		1.1062		0.04960		0.05486
E_ _-4Y3Y-0X0/1		in. mm		0.138 3.505		0.032 0.813		0.173 4.394		9.8		0.4859		0.04966		0.02413
E_ _-5Q64-400/1		in. mm		0.214 5.436		0.140 3.558		0.200 5.080		29.1		1.3709		0.04703		0.06448
E_ _-755F-2H0/1		in. mm		0.190 4.826		0.087 2.210		0.250 6.350		12.7		1.0003		0.07897		0.07899
E_ _-755F-2K0/1		in. mm		0.190 4.826		0.090 2.288		0.250 6.350		13.2		1.0196		0.07700		0.07850
E_ _-758X-1F0/1		in. mm		0.312 7.925		0.050 1.270		0.250 6.350		5.4		0.8699		0.16098		0.14004
E_ _-BC3Y-0X0/1		in. mm		0.138 3.505		0.032 0.813		0.327 8.306		6.6		0.6426		0.09697		0.06231
E_ _-AQ3Y-1G0/1		in. mm		0.138 3.505		0.051 1.295		0.375 9.525		6.6		0.6426		0.09697		0.06231
E_ _-BF60-1H0/1		in. mm		0.210 5.334		0.052 1.321		0.400 10.160		4.4		0.7698		0.17376		0.13376
E_ _-BF75-250/1		in. mm		0.250 6.350		0.075 1.905		0.400 10.160		4.8		1.0294		0.20040		0.20628
E_ _-CH5Q-150/1		in. mm		0.200 5.080		0.062 1.575		0.437 11.100		4.8		0.8398		0.17374		0.14590
E_ _-EAAK-3K0/1		in. mm		0.370 9.398		0.125 3.175		0.500 12.700		4.6		1.6347		0.35856		0.58614

				F31		F01		FA1		F52		F53		FB2		F82		FTA
		Init perm		15		120		370		850		1050		2000		5000		10000
Core P/N		ZNorm		17		72		575		75		75		150		220		270