Digital transistors Features 1)Built-in bias resistors enable the configuration of an inverter circuit without connecting external input resistors (see equivalent circuit). 2)The bias resistors consist of thinfilm resistors with complete isolation to allow negative biasing of the input. They also have the advantage of almost completely eliminating parasitic effects. 3)Only the on/off conditions need to be set for operation, making device design easy. ●Structure NPN digital transistor (Built-in resistor type) ● LDTD123ELT1 SOT–23 Driver Marking LDTD123ELT1 =F22 Equivalent circuit ● 3 1 2 LDTD123ELT1–1/4 LDTD123ELT1 ● Absolute maximum ratings (Ta = 25oC) ● Electrical characteristics (Ta = 25 C) o LDTD123ELT1–2/4 LDTD123ELT1 ● Electrical characteristic curves LDTD123ELT1–3/4 LDTD123ELT1 SOT–23 NOTES: 1.DIMENSIONING AND TOLERANCING PER ANSI Y14.5M,1982 2.CONTROLLING DIMENSION:INCH LDTD123ELT1–4/4