DTB143TK is a digital transistor manufactured by ROHM. It has built-in resistors that allow the configuration of an inverter circuit without connecting external input resistors. The transistor has high voltage and current characteristics and can be used in switch-mode power supplies, interface circuits, etc.
The DTB143TK is a digital transistor with a built‑in bias resistor, allowing inverter or driver circuits without external resistors. It is suited for applications such as inverters, interfaces, and drivers, and features thin‑film resistors that minimize parasitic effects.
The datasheet lists absolute maximum ratings, electrical characteristics, and typical performance curves, as well as SMT packaging details (Taping E) and recommended operating conditions. Key parameters include collector‑base voltage of -50 V, collector‑emitter voltage of -40 V, and a maximum collector current of -500 mA.
| Collector‑base voltage (Vcbo) | -50 V |
|---|---|
| Collector‑emitter voltage (Vceo) | -40 V |
| Emitter‑base voltage (Vebo) | -5 V |
| Collector current (Ic) | -500 mA |
| Power dissipation (Pc) | 200 mW |
| Junction temperature (Tj) | 150 °C |
| Storage temperature (Tsg) | -55 to +150 °C |
| Input resistance (Ri) | 4.7 kΩ (typ) |
| Packaging type | Taping E (SMT) |
The DTB143TK can handle a collector current up to -500 mA.
It is rated for -50 V collector‑base, -40 V collector‑emitter, and -5 V emitter‑base voltages.
The device is supplied in an SMT package with a Taping E form factor.