This document introduces the features of ROHM's DTC124TM/DTC124TE/DTC124TUA/DTC124TKA four digital transistors, including application scenarios, feature characteristics, structure and dimensions.
The DTC124TUA is a 100 mA, 50 V NPN digital transistor with an integrated thin‑film bias resistor, allowing inverter circuits without external resistors. It is suited for inverter, interface, and driver applications and features complete isolation of the bias resistors to minimise parasitic effects.
The datasheet lists the device’s absolute maximum ratings, typical electrical parameters, and packaging options (SC‑70, SC‑59, etc.). Key specifications include collector‑base voltage of 50 V, collector‑emitter voltage of 50 V, emitter‑base voltage of 5 V, and a storage temperature range from –55 °C to +150 °C.
| Collector‑base voltage (Vcbo) | 50 V |
|---|---|
| Collector‑emitter voltage (Vceo) | 50 V |
| Emitter‑base voltage (Vebo) | 5 V |
| Collector current (Ic) | 100 mA |
| Power dissipation (Pc) | 150 mW |
| Junction temperature (Tj) | 150 °C |
| Storage temperature range | -55 °C to +150 °C |
The device is rated for a collector current of 100 mA.
The transistor can withstand up to 50 V collector‑base and collector‑emitter voltages, and 5 V emitter‑base voltage.
It is available in SC‑70 (VMT3), SC‑59 (EIAJ), and other tape‑and‑reel formats.