Key facts
- Brand
- Fairchild
- Model
- NZT651
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-07-12
Start here

Fairchild NZT651 NPN Current Driver Transistor Datasheet
This document is a technical datasheet for the Fairchild Semiconductor NZT651, an NPN Current Driver Transistor packaged in SOT-223. The device is designed for use in power amplifier, regulator, and switching circuits where speed is important.
The datasheet provides comprehensive electrical specifications including absolute maximum ratings such as a collector-emitter voltage of 60V and a continuous collector current of 4A. It also details thermal characteristics like total device dissipation of 12W and various DC and AC typical characteristics, including current gain and saturation voltages.
Fairchild NZT651 specifications
| Package Type | SOT-223 |
|---|---|
| Collector Current (Continuous) | 4 A |
| Operating Junction Temperature Range | -55 to +150 °C |
| Total Device Dissipation (Pp) | 12 W |
Source: Fairchild NZT651 NPN Current Driver Transistor Datasheet
All Fairchild NZT651 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum continuous collector current for this transistor?
The device supports a continuous collector current of up to 40 A.
From: Fairchild NZT651 NPN Current Driver Transistor Datasheet
How much power can this transistor dissipate at room temperature?
The total device dissipation is rated at a maximum of 12 W when the ambient temperature is 25°C.
From: Fairchild NZT651 NPN Current Driver Transistor Datasheet
What is the maximum continuous collector current?
The device can handle up to 40 A of continuous collector current.
From: Fairchild NZT651 NPN Current Driver Transistor Datasheet
What temperature range can the NZT651 operate in?
It operates from –55 °C up to +150 °C junction temperature.
From: Fairchild NZT651 NPN Current Driver Transistor Datasheet
