A1015 General Purpose PNP Bipolar Junction Transistor

A PNP bipolar junction transistor rated at 50V collector-emitter and 150 mA collector current, used for general purpose amplification and low current switching, and the common complement to the C1815 in push-pull audio stages. As a PNP device it conducts when its base is pulled low, which suits high side switching from a positive rail. Always fit a base resistor when driving it from a microcontroller pin - connecting a base directly to a logic output will damage both. A common starting value is 1K for switching applications. 50V and 150 mA rating suits moderate loads; TO-92 through-hole package fits breadboards; Very low cost and widely documented; Standard pinout for the A1015 family