This document describes the features and characteristics of the SST4403 / MMST4403 PNP Medium Power Transistor (Switching), including product features, absolute maximum ratings, packaging specifications, dimensions, and electrical characteristics.
The ROHM SST4403 / MMST4403 is a PNP medium‑power transistor intended for switching applications. This datasheet provides the device’s package information, absolute maximum ratings, and detailed electrical characteristics.
Technical data include voltage limits, current capability, power dissipation, temperature ratings, capacitances, and switching times, along with characteristic curves for design reference.
| Collector‑emitter breakdown voltage (BVceo) | 40 V |
|---|---|
| Emitter‑base voltage (Vebo) | 6 V |
| Collector current (Ic) | 0.6 A |
| Power dissipation (Pc) | 0.2 W |
| Junction temperature (Tj) | 150 °C |
| Storage temperature (Tstg) | 55 to +150 °C |
| Transition frequency (fT) | 200 MHz |
| Collector output capacitance (Cob) | 8.5 pF |
| Emitter input capacitance (Cib) | 30 pF |
| Delay time (td) | 15 ns |
The maximum collector‑emitter voltage is 40 V.
The transistor can handle up to 0.6 A of collector current.
The typical transition frequency (fT) is 200 MHz.