This document describes the features and characteristics of the BC858BW / BC858B PNP general purpose transistors, including BVCEO < -30V (IC=-1mA) and complementary features with BC848B / BC848BW.
The BC858B and BC858BW are PNP general‑purpose transistors offered by ROHM in a SOT‑23 (UMT3) package. They are intended for use in audio‑visual, office‑automation, communications, and other electronic equipment.
The document lists key parameters such as a collector‑emitter voltage rating of 30 V, a transition frequency of 250 MHz, a current gain (hFE) range of 210‑480, and a maximum junction temperature of 150 °C, along with detailed characteristic curves and noise figures.
| Collector‑emitter voltage (VCEO) | 30 V |
|---|---|
| Collector‑base voltage (VCBO) | 30 V |
| Transition frequency (fT) | 250 MHz |
| Current gain (hFE) | 210 – 480 |
| Maximum junction temperature (Tj) | 150 °C |
| Package type | SOT‑23 (UMT3) |
The maximum collector‑emitter voltage is 30 V.
The transition frequency is specified as 250 MHz.
It is supplied in a SOT‑23 (UMT3) package.
The current gain ranges from 210 to 480.