DTA143EU3 is an digital transistor (Resistor built-in type transistor). Built-in bias resistors enable the configuration of an inverter circuit without connecting external input resistors.
Built-In Biasing Resistors, R1 = R2 = 4.7kΩ Built-in bias resistors enable the configuration of an inverter circuit without connecting external input resistors (see inner circuit) . Only the on/off conditions need to be set for operation, making the circuit design easy. Complementary NPN Types: DTC143E series
