[Slot Sensor]

recently i've try to used slot sensor on my project,i've found there have two types of it,NPN=negative-potive-negative,and PNP-positive-negative-positive.could some one tell me how it's be use.thanks

[Slot sensor]

recently i've try to used slot sensor on my project,i've found there have two types of it,NPN=negative-potive-negative,and PNP-positive-negative-positive.could some one tell me how it's be use.thanks

[optoisolator]

well, my ac motor's size was medium.i've read some articles on internet, MOC3041,3042 adn 3043 can be use for my project. i'm not too sure about the moc3040.

[optoisolator]

hi, i'm new member here.recently i have a research on optoisolator, for my project. i'm not sure what is different between moc3041 and moc3040, isn;t both of them act as some function. cos i wan use it to isolated the voltage use ofr 240AV motor.
could someone pls tell me about that, thanks.