Overview
The STMicroelectronics BD679 is an NPN power Darlington transistor, part of the BD6xxx series. It is manufactured using planar base island technology with a monolithic Darlington configuration. This transistor is designed for high-power applications, offering a combination of high voltage and current handling capabilities. The BD679 is packaged in a SOT-32-3 through-hole package and is RoHS compliant, making it suitable for a wide range of industrial and commercial applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Polarity | NPN | |
| Type | Darlington | |
| CE Voltage-Max | 80 | V |
| Collector Current Max | 4 | A |
| Power Dissipation-Tot | 40 | W |
| DC Current Gain-Min | 750 | |
| Package Style | SOT-32-3 | |
| Collector-Base Voltage (IE = 0) | 80 | V |
| Collector-Emitter Voltage (IB = 0) | 80 | V |
| Emitter-Base Voltage (IC = 0) | 5 | V |
| Collector Current | 4 | A |
| Base Current | 0.1 | A |
| Total Dissipation at Tcase = 25°C | 40 | W |
| Max. Operating Junction Temperature | 150 | °C |
| Storage Temperature | -65 to 150 | °C |
Key Features
- Monolithic Darlington configuration with integrated antiparallel collector-emitter diode
- Good hFE linearity
- High fT frequency
- High voltage and current handling capabilities (up to 80V and 4A)
- RoHS compliant and ECOPACK® packaging
- Suitable for linear and switching industrial equipment
Applications
The BD679 is suitable for various high-power applications, including:
- Linear and switching industrial equipment
- Power amplifiers and drivers
- Motor control and automation systems
- High-current switching applications
Q & A
- What is the polarity of the BD679 transistor?
The BD679 is an NPN transistor. - What is the maximum collector-emitter voltage of the BD679?
The maximum collector-emitter voltage is 80V. - What is the maximum collector current of the BD679?
The maximum collector current is 4A. - What is the power dissipation of the BD679?
The total power dissipation is 40W. - What is the package style of the BD679?
The BD679 is packaged in a SOT-32-3 through-hole package. - Is the BD679 RoHS compliant?
Yes, the BD679 is RoHS compliant. - What is the maximum operating junction temperature of the BD679?
The maximum operating junction temperature is 150°C. - What are the key features of the BD679?
The key features include monolithic Darlington configuration, good hFE linearity, high fT frequency, and integrated antiparallel collector-emitter diode. - What are the typical applications of the BD679?
The BD679 is typically used in linear and switching industrial equipment, power amplifiers, motor control, and high-current switching applications. - What is the storage temperature range for the BD679?
The storage temperature range is -65 to 150°C.
