I have a TIP42 to be used as a light switch. Emitter to 12v+ and collector to 12v+ on light(s). I use a resistor to try to flip the switch and I get close to 12 volts. I figure I'm OK. Hook a light to it and nothing happens except the transistor gets hot.
There are multiple lights at different locations and therefore many different grounds but only one 12+ wire so the PNP is correct to use.
I have the datasheet, but I see so many different ways to figure correct resistors out there I don't know which one to trust.
Can I get a suggestion to help me out?
There are multiple lights at different locations and therefore many different grounds but only one 12+ wire so the PNP is correct to use.
I have the datasheet, but I see so many different ways to figure correct resistors out there I don't know which one to trust.
Can I get a suggestion to help me out?
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