The DTA125T series is ROHM's PNP type digital transistor with output current of -100mA and voltage tolerance of -50V. The series features built-in bias resistors, making it possible to configure an inverter circuit without connecting external input resistors (see equivalent circuit). The bias resistors are thin-film resistors with complete isolation, which allows negative biasing of the input. They also have the advantage of completely eliminating parasitic effects. The series only requires the on/off conditions to be set for operation, making the circuit design easy. The series' complementary NPN types are the DTC125T series. The series complies with lead-free/RoHS standards.
The DTA125T series digital transistors feature built‑in bias resistors that simplify inverter circuit design by eliminating the need for external input resistors. The devices are lead‑free/RoHS compliant and are offered in two package types: SOT‑323 (SC‑70) for the DTA125TUA and SOT‑346 (SC‑59) for the DTA125TKA.
The datasheet lists absolute maximum ratings, electrical characteristics, and detailed mechanical dimensions for each package. Application examples include switching, inverter, interface, and driver circuits. Legal notices and packaging information are also included.
| Collector‑base voltage (Vebo) | 50 V |
|---|---|
| Collector‑emitter voltage (Veco) | -50 V |
| Collector current (Ic) | 100 mA |
| Power dissipation (Poff) | 200 mW |
| Junction temperature (Tj) | 150 °C |
| Input resistance (Ry) typical | 200 kΩ |
| Transition frequency (fT) typical | 250 MHz |
| Built‑in bias resistors | Yes |
| RoHS compliance | Lead Free/RoHS Compliant |
The maximum collector current is 100 mA.
The typical input resistance is 200 kΩ.
Yes, they are lead‑free and RoHS compliant.