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Transistors DTC143EUB 100mA / 50V Digital transistors (with built-in resistors) DTC143EUB Applications Dimensions (Unit : mm) Inverter, Interface, Driver UMT3F Features 2.0 0.32 0.9 1.25 0.425 1) Built-in bias resistors enable the configuration of 0.53 (3) an inverter circuit without connecting external 2.1 input resistors (see equivalent circuit). 2) The bias resistors consist of thin-film resistors 0.425 0.53 (1) (2) with complete isolation to allow negative biasing 0.13 0.65 0.65 of the input. They also have the advantage of 1.3 almost completely eliminating parasitic effects. Each lead has same dimensions 3) Only the on/off conditions need to be set for (1) IN operation, making the device design easy. (2) GND Abbreviated symbol : 23 (3) OUT Structure Equivalent circuit NPN silicon epitaxial planar transistor type (Resistor built-in) OUT R1 IN