View dtc113zua-zka 121 z21 sot323 346 datasheet:

Transistors Digital transistors (built-in resistors) DTC113ZUA / DTC113ZKA / DTC113ZSA FFeatures FExternal dimensions (Units: mm) 1) Built-in bias resistors enable the configuration of an inverter circuit without connecting external input resistors (see equivalent circuit). 2) Each bias resistor is a thin-film re- sistor. Since they are completely in- sulated, the input can be negatively biased. The insulation also elimi- nates most of the parasitic effects. 3) Only the on/off conditions need to be set for operation, making device design easy. FStructure NPN digital transistor (with built in resistors) FEquivalent circuit (96S-623-C113Z) 390 Transistors DTC113ZUA/DTC113ZKA/DTC113ZSA FAbsolute maximum ratings (Ta = 25_C) FElectrical characteristics (Ta = 25_C) FPac