UMT3904 / SST3904 / MMST3904 are 1/4 NPN general purpose transistors produced by ROHM. Its BVCEO > 40V (IC = 1mA), which can be used with UMT3906 / SST3906 / MMST3906.
This ROHM datasheet provides detailed electrical specifications, maximum ratings, and characteristic curves for the UMT3904, SST3904, and MMST3904 NPN general‑purpose transistors. It includes package information, marking codes, and recommended operating conditions.
The document also contains application notes, storage guidelines, and legal notices. All data are presented for reference and may be subject to change without notice.
| Collector‑emitter breakdown voltage (BVCEO) | 40 V |
|---|---|
| Collector‑base breakdown voltage (BV CBO) | 60 V |
| Maximum collector current (Ic) | 0.2 A |
| Junction temperature (Tj) | 150 °C |
| Storage temperature range | -56 to +150 °C |
| Transition frequency (ft) | 300 MHz |
The collector‑emitter breakdown voltage is 40 V.
The maximum collector current is 0.2 A.
The devices are offered in UMT3, SST3, and SMT3 surface‑mount packages.
Store the devices between –56 °C and +150 °C.