MPSA13 is a NPN silicon small signal transistor manufactured by FSC/MOT. It is a member of the MPSA family of small signal transistors. Description: The MPSA13 is a general purpose NPN transistor with a 200mW power dissipation and a minimum current gain of 10. It has a maximum voltage rating of 30 V and a collector-emitter voltage rating of 12 V. Features: Low voltage rating High current gain Low collector-emitter saturation voltage Compliant with RoHS requirements Applications: The MPSA13 is widely used in many applications such as amplifier circuits, switch circuits, logic circuits, and amplifier stages. It is also used as an active device in oscillator circuits, interface circuits, and driver circuits.(For reference only)
https://www.utsource.net/itm/p/522421.html