DTA144TM / DTA144TE / DTA144TUA / DTA144TKA is a digital transistor produced by ROHM company. It has a current and voltage of -100mA / -50V and is suitable for applications such as inverters, interfaces and drivers. The transistor has built-in bias resistors, which can be used to configure an inverter circuit without connecting external input resistors. It also has completely isolated thin-film resistors for positive biasing of the input and almost completely eliminates parasitic effects. The design of the transistor is simple and only requires the setting of on/off conditions to operate.
The DTA144 series are P‑type epitaxial planar silicon transistors with built‑in bias resistors, intended for inverter, interface and driver applications. The built‑in resistors simplify circuit design by eliminating the need for external input resistors and reduce parasitic effects.
Key specifications include absolute maximum ratings such as -50 V collector‑base and collector‑emitter voltages, -100 mA collector current, and a junction temperature rating of 150 °C. Packaging options are offered in VMT3, EMT3, UMT3 and SMT3 tape formats, with detailed electrical characteristics provided for design reference.
| Collector‑emitter voltage Vceo | -50 V |
|---|---|
| Emitter‑base voltage Vebo | -5 V |
| Collector current Ic | -100 mA |
| Junction temperature Tj | 150 °C |
| Storage temperature Tstg | 55 to +150 °C |
| Input resistance Ri | 32.9–611 kΩ |
They are intended for inverter, interface and driver circuits.
They enable an inverter circuit without external input resistors, reducing parasitic effects.
No, the products are not designed to be radiation tolerant.