67 telecoils tc0502 smd telecoil 5.1x2.3x2.6 mm this new design is coil with a very stable and high quality ferrite core and tiny size (5.1 x 2.3 x 2.4mm) and high sensitivity in low frequency range (20-40khz). those pieces are winding with thin copper wire up to12m and its inductances range is 40-270mh. besides, it has good frequency and temperature behaviour and can be served with custom electrics characteristics according requirements of hearing aid devices manufacturers. main characteristics - small size - high sensitivity - smd mounting typical application - hearing aid devices dimensions and recommended pad-layout electrical specications p/n l(mh) @ 1khz tolerance rdc (k!) srf (khz) sensitivity (mvpp/app/m) @1khz tc0502-04000j 40 5% 0,6 > 250 > 0,6 TC0502-14000J 140 5% 1,8 > 100 > 1,1 tc0502-17000j 170 5% 2,1 > 100 > 1,30 tc0502-27000j 270 5% 2,8 > 80 > 1,70 (40 mh - 270 mh) this chart is a reference guide for the most common required values at working frequency of 1khz. any other inductance value at lf or tighter tolerances can be provided. please co ntact our sales department for any inquiry. sensiti vity measured with helmholtz coils h=6.34 app/m @1 khz. contact us for measureme nt specication. metallization: ag(base)/ni(inter)/ sn(finish)
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