UMH14N / IMH14A is a general-purpose dual digital transistor with two DTC144T chips. It has a collector-base breakdown voltage of 50V, collector-emitter breakdown voltage of 50V, emitter-base breakdown voltage of 5V, collector current of 100mA, and power dissipation of 300mW. The product features small size and high performance.
The UMH14N and IMH14A are general‑purpose dual digital transistors offered in both UMT (through‑hole) and SMT (surface‑mount) packages. The document lists their package dimensions, markings, and ordering units.
Key electrical specifications are provided, including voltage limits, current ratings, power dissipation, and frequency performance, together with characteristic curves. Legal notes describe export controls and usage restrictions for safety‑critical equipment.
| Collector‑base voltage (Vcbo) | 50 V |
|---|---|
| Collector‑emitter voltage (Vceo) | 50 V |
| Emitter‑base voltage (Vebo) | 5 V |
| Collector current (Ic) | 100 mA |
| Junction temperature | 150 °C |
| Storage temperature range | -55 °C to +150 °C |
| Input resistance (Ri) | 32.9 kΩ (min) – 61.4 kΩ (max) |
| Transition frequency (fT) | 250 MHz |
| Package types | UMT6 (through‑hole) and SMT6 (surface‑mount) |
The maximum collector current is 100 mA.
They are offered in UMT6 (through‑hole) and SMT6 (surface‑mount) packages.
They should not be used in safety‑critical equipment such as medical instruments or aerospace systems without consulting Rohm sales representatives.