This document describes the features and characteristics of the DTC123J series digital transistors from ROHM, including built-in bias resistors for simplified circuit design. They are suitable for switching circuits, inverter circuits, interface circuits, and driver circuits.
The DTC123JUB is a NPN digital transistor with a built‑in bias resistor, allowing inverter circuits to be built without external resistors. It is RoHS‑compliant and offered in several package types such as SOT‑75 and SOT‑323.
The datasheet lists absolute maximum ratings, electrical characteristics, and detailed mechanical dimensions for each package variant, along with packaging specifications and a legal notice from ROHM.
| Supply voltage (Voc) | 50 V |
|---|---|
| Input voltage range (Vin) | -? to +12 V |
| Output current (Iout) | 100 mA |
| Junction temperature (Tj) | 150 °C |
| Storage temperature range | -55 °C to +150 °C |
The maximum supply voltage is 50 V.
The device can source up to 100 mA of output current.
It has built‑in bias resistors that allow an inverter circuit to be configured without external input resistors.