Transistors with built-in Resistor UN2211/2212/22.
Panasonic Semiconductor
UN221F - Silicon NPN epitaxial planer transistor
Transistors with built-in Resistor UN2211/2212/2213/2214/2215/2216/2217/2218/2219/2210/ 221D/221E/221F/221K/221L/221M/221N/221T/221V/221Z Silicon NPN.