Cesta:OKDatasheet > Semiconductor list > Contek Datasheet > LS1240
LS1240 spec: Electronic tone ringer with built-in bridge rectifier. Supply voltage Vs=26V. Current consumption without load Ib=1.5A(typ). Activation voltage Von=12V(min),13.5V(max). Sustaining voltage Voff=8V(min),9V(max).