DTD123EK is a digital transistor from ROHM with built-in resistors, it can be used for inverter, interface and driver circuits.
The DTD123EK is a 500 mA, 50 V digital transistor that includes built‑in bias resistors, allowing inverter or driver circuits without external resistors. The thin‑film resistors are isolated to minimize parasitic effects and simplify circuit design.
The datasheet lists absolute maximum ratings, electrical characteristics, and typical application curves, and includes packaging details (SMT3) and ordering information. It also contains a notice about usage restrictions and export compliance.
| Supply voltage (VCC) | 50 V |
|---|---|
| Input voltage (VIN) | -10 to +12 V |
| Output current (IC) | 500 mA |
| Power dissipation (PD) | 200 mW |
| Junction temperature (TJ) | 150 °C |
| Storage temperature (TSTG) | -55 to +150 °C |
| Transition frequency (fT) | 200 MHz |
| DC current gain (hFE) | 39 |
| Input resistance (RI) | 2.2 kΩ (typ) |
| Package | SMT3 |
The device can be powered up to 50 V.
The DTD123EK can deliver up to 500 mA of output current.
It is supplied in an SMT3 surface‑mount package.