Overview
The BC857BFA-7B is a bipolar junction transistor (BJT) manufactured by Diodes Incorporated. This transistor is part of the BC857 series, known for its high current gain and low noise characteristics. It is designed to be fully compliant with EU Directive 2002/95/EC (RoHS) and 2011/65/EU (RoHS 2), ensuring it is lead-free and environmentally friendly. The BC857BFA-7B is packaged in a 3-pin SOT-23 package, making it suitable for a variety of applications where space is limited.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Transistor Type | NPN | - |
| Package Type | SOT-23 | - |
| Collector-Base Voltage (VCB) | 65 | V |
| Collector-Emitter Voltage (VCE) | 65 | V |
| Emitter-Base Voltage (VEB) | 6 | V |
| Collector Current (IC) | 100 | mA |
| Base Current (IB) | 5 | mA |
| Current Gain (hFE) | 100-300 | - |
| Operating Temperature Range | -55 to 150 | °C |
Key Features
- High current gain (hFE) of 100-300, ensuring reliable amplification.
- Low noise characteristics, making it suitable for sensitive applications.
- Lead-free and RoHS compliant, adhering to environmental regulations.
- Compact SOT-23 package, ideal for space-constrained designs.
- Wide operating temperature range of -55°C to 150°C, enhancing reliability in various environments.
Applications
The BC857BFA-7B transistor is versatile and can be used in a variety of applications, including:
- General-purpose amplification and switching.
- Audio and video circuits where low noise is critical.
- Automotive and industrial control systems due to its wide operating temperature range.
- Consumer electronics such as TVs, radios, and other electronic devices.
Q & A
- What is the package type of the BC857BFA-7B transistor?
The BC857BFA-7B transistor is packaged in a 3-pin SOT-23 package. - Is the BC857BFA-7B RoHS compliant?
Yes, the BC857BFA-7B is fully compliant with EU Directive 2002/95/EC (RoHS) and 2011/65/EU (RoHS 2). - What is the maximum collector current of the BC857BFA-7B?
The maximum collector current (IC) is 100 mA. - What is the operating temperature range of the BC857BFA-7B?
The operating temperature range is -55°C to 150°C. - What are the typical applications of the BC857BFA-7B?
The BC857BFA-7B is used in general-purpose amplification, audio and video circuits, automotive and industrial control systems, and consumer electronics. - What is the current gain (hFE) of the BC857BFA-7B?
The current gain (hFE) ranges from 100 to 300. - Is the BC857BFA-7B suitable for high-frequency applications?
While it can be used in various applications, its suitability for high-frequency applications should be evaluated based on specific requirements and performance characteristics. - Can the BC857BFA-7B be used in automotive systems?
Yes, due to its wide operating temperature range and robust design, it is suitable for automotive systems. - What is the maximum collector-base voltage (VCB) of the BC857BFA-7B?
The maximum collector-base voltage (VCB) is 65 V. - Is the BC857BFA-7B available from major distributors?
Yes, it is available from major distributors such as Digi-Key, Mouser, and others.
