The NZT651 is a NPN current driver transistor produced by Fairchild Semiconductor Corporation. This device is designed for high-speed power amplifier, regulator and switching circuits.
The NZT651 is an NPN current‑driver transistor intended for power amplifiers, regulators and switching circuits where speed is important. It is supplied in a SOT‑223 package measuring 36 mm × 18 mm × 1.5 mm.
The document lists absolute maximum ratings, thermal characteristics, and detailed electrical parameters such as collector‑emitter voltage, collector current, and gain, as well as typical DC and AC performance curves.
| Continuous Collector Current (IC) | 40 A |
|---|---|
| Junction Temperature Range | -55 to +150 °C |
| Total Device Dissipation (Pp) | 12 W |
| Package dimensions | 36 mm × 18 mm × 1.5 mm |
The device can handle up to 40 A of continuous collector current.
It operates from –55 °C up to +150 °C junction temperature.