IRON POWDER TOROIDAL CORES
(For Resonant Circuits)
 

MATERIAL 0 -- Permeability 1, Freq Range 100 MHz - 300 MHz, Color - Tan

Core Number	O.D. (inches)	I.D. (inches)	Hgt (inches)	le (cm)	Ae (cm)2	Ve (cm)3	AL Value µh/100 Turns
T12-0	.125	.062	.050	.74	.010	.007	3.0
T16-0	.160	.078	.060	.95	.016	.015	3.0
T20-0	.200	.088	.070	1.15	.025	.029	3.5
T25-0	.255	.120	.096	1.50	.042	.063	4.5
T30-0	.307	.151	.128	1.83	.065	.119	6.0
T37-0	.375	.205	.128	2.32	.070	.162	4.9
T44-0	.440	.229	.159	2.67	.107	.286	6.5
T50-0	.500	.303	.190	3.03	.121	.367	6.4
T68-0	.690	.370	.190	4.24	.196	.831	7.5
T80-0	.795	.495	.250	5.15	.242	1.246	8.5
T94-0	.942	.560	.312	6.00	.385	2.310	10.6
T106-0	1.060	.570	.437	6.50	.690	4.485	19.0
T130-0	1.300	.780	.437	8.29	.730	6.052	15.0

Note:

Due to the nature of the '0' material, the inductance resulting from the use of the given A_L value may vary greatly depending upon the winding technique. This may cause discrepancy between calculated and measured inductance.