Do you have a base current limiting resistor (say 4k7) in the transistor base connection. If not then the base junction is causing a (almost) dead short across the supply line. Why would you want to connect the base to the 5volt line ?
Do you have a base current limiting resistor (say 4k7) in the transistor base connection. If not then the base junction is causing a (almost) dead short across the supply line. Why would you want to connect the base to the 5volt line ?