Post by thread:[EE]: sadly basic question

www.csd-nec.com/opto/english/pdf/P11303EJ5V0DS00.pdf now, am I understanding this right? According to the specs it says if you give it If=1mA, at Vce=2v you typically get 2000% transfer, or 20mA as Ic?? So if one wanted something like 100mA Ic one would need about 5mA If (at the same Vce of 2v)?? But in the relay application, you'd have something like 12v dropping across the coil and the opto. If the coil drops 9V at 100mA (arbitrary), that "leaves" 3v Vce... which would change the actual current being pulled... by a lot? I wouldn't think so since the graph of Ic vs Vce is well saturated even at 2v for If=5mA... ?? -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email spam_OUTlistservTakeThisOuTmitvma.mit.edu with SET PICList DIGEST in the body