Transistors with built-in Resistor UN4211/4212/42.
Panasonic Semiconductor
UN421K - Silicon NPN epitaxial planer transistor
Transistors with built-in Resistor UN4211/4212/4213/4214/4215/4216/4217/4218/ 4219/4210/421D/421E/421F/421K/421L Silicon NPN epitaxial planer transis.
