Overview
The BD677 is a high-performance NPN Darlington transistor manufactured by STMicroelectronics. It is part of the BD6xxx series of complementary power Darlington transistors. This device is designed for use in linear and switching industrial equipment, leveraging its monolithic Darlington configuration and integrated antiparallel collector-emitter diode. The BD677 is known for its good hFE linearity, high fT frequency, and robust electrical characteristics, making it a reliable choice for various industrial applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Collector-Base Voltage (VCBO) | 60 | V |
| Collector-Emitter Voltage (VCEO) | 60 | V |
| Emitter-Base Voltage (VEBO) | 5 | V |
| Collector Current (IC) | 4 | A |
| Collector Peak Current (ICM) | 6 | A |
| Base Current (IB) | 0.1 | A |
| Total Dissipation at Tcase = 25°C (PTOT) | 40 | W |
| Storage Temperature (Tstg) | -65 to 150 | °C |
| Max. Operating Junction Temperature (TJ) | 150 | °C |
| DC Current Gain (hFE) | 750 | |
| Collector-Emitter Saturation Voltage (VCE(sat)) | 2.5 | V |
| Base-Emitter Voltage (VBE) | 2.5 | V |
Key Features
- Monolithic Darlington configuration with integrated antiparallel collector-emitter diode.
- Good hFE linearity and high fT frequency.
- High collector current and peak current capabilities.
- Robust electrical characteristics suitable for linear and switching applications.
- Manufactured in planar base island technology.
- Available in ECOPACK® packages with lead-free second level interconnect.
Applications
The BD677 is designed for use in various industrial applications, including:
- Linear and switching industrial equipment.
- Power amplifiers and drivers.
- Motor control systems.
- Relay and solenoid drivers.
- General-purpose power switching.
Q & A
- What is the BD677 transistor?
The BD677 is an NPN Darlington transistor manufactured by STMicroelectronics, designed for linear and switching industrial applications. - What is the maximum collector-emitter voltage of the BD677?
The maximum collector-emitter voltage (VCEO) of the BD677 is 60 V. - What is the maximum collector current of the BD677?
The maximum collector current (IC) of the BD677 is 4 A. - What is the DC current gain (hFE) of the BD677?
The DC current gain (hFE) of the BD677 is 750. - What is the collector-emitter saturation voltage (VCE(sat)) of the BD677?
The collector-emitter saturation voltage (VCE(sat)) of the BD677 is 2.5 V. - What is the base-emitter voltage (VBE) of the BD677?
The base-emitter voltage (VBE) of the BD677 is 2.5 V. - What type of package does the BD677 come in?
The BD677 comes in a SOT-32 package with ECOPACK® lead-free second level interconnect. - What are the typical applications of the BD677?
The BD677 is typically used in linear and switching industrial equipment, power amplifiers, motor control systems, relay and solenoid drivers, and general-purpose power switching. - What is the maximum operating junction temperature of the BD677?
The maximum operating junction temperature (TJ) of the BD677 is 150 °C. - What is the storage temperature range for the BD677?
The storage temperature range (Tstg) for the BD677 is -65 to 150 °C.
