BUY U257B https://www.utsource.net/itm/p/158514.html
To drive LED-displays with 5 or 10 diodes
The U257B is an 8-pin DIP (dual inline package) transistor from TFK. It is a PNP silicon planar epitaxial transistor designed for use in low frequency amplifier and switching applications. It has a maximum collector-emitter voltage of 40V, a maximum collector current of 0.2A, and a maximum power dissipation of 500mW. The U257B is suitable for use in audio amplifiers, switching circuits, and other applications requiring low-noise operation. (For reference only)