This data sheet introduces the features and specifications of ROHM's DTB114EK PNP digital transistor (bias resistor built-in transistor). This transistor has built-in bias resistors, so it does not need to connect external input resistors to build an inverter circuit.
The DTB114EK is a PNP digital transistor featuring built‑in bias resistors that simplify inverter, interface, and driver circuit designs. The device offers a maximum output current of 500 mA and operates with a supply voltage up to –50 V.
The datasheet lists absolute maximum ratings, typical electrical characteristics, package dimensions (SOT‑346/SC‑59), and recommended application circuits. It also includes RoHS compliance information and a notice on usage restrictions.
| Supply voltage (VEE) | -50 V |
|---|---|
| Input voltage (VIN) | -40 to +10 V |
| Output current (IO) | 500 mA |
| Power dissipation (Pp) | 200 mW |
| Junction temperature (Tj) | 150 °C |
| Storage temperature range (Tstg) | -55 to +150 °C |
| On‑state resistance (R) | 410 kΩ |
| Built‑in bias resistor value | 10 kΩ |
| Package type | SOT‑346 (SC‑59) |
The device can handle up to 500 mA of output current.
Each built‑in bias resistor is 10 kΩ.
It can be used in inverter circuits, interface circuits, and driver circuits.
It is supplied in an SOT‑346 (SC‑59) surface‑mount package.