High current transfer ratio (CTR : MIN.100% at IF=10mA, VCE=10V) Response time (ton : TYP, 3 s at VCE=10V, IC=2mA, RL=100 ) Input-output isolation voltage : LTV-4N35(Viso : 3,550Vrms) LTV-4N37(Viso : 1,550Vrms) UL approved (No.E113898) TUV approved ...