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BC857W,115
Product Overview
- Category: Transistor
- Use: Amplification and switching in electronic circuits
- Characteristics: Small signal NPN transistor, low power dissipation, high current gain
- Package: SOT323 (SC-70)
- Essence: Silicon epitaxial planar NPN transistors
- Packaging/Quantity: Reel, 3000 units per reel
Specifications
- Collector-Emitter Voltage (VCEO): 45V
- Collector-Base Voltage (VCBO): 50V
- Emitter-Base Voltage (VEBO): 5V
- Collector Current (IC): 100mA
- Power Dissipation (Ptot): 250mW
- Transition Frequency (ft): 100MHz
- Operating Temperature Range: -55°C to +150°C
Detailed Pin Configuration
- Emitter (E)
- Base (B)
- Collector (C)
Functional Features
- High current gain
- Low noise
- Complementary PNP type available (BC857)
Advantages
- Small size
- Low power dissipation
- Wide operating temperature range
Disadvantages
- Limited collector current compared to other transistors
- Lower transition frequency compared to some alternatives
Working Principles
The BC857W,115 is a small signal NPN transistor that amplifies or switches electronic signals. When a small current flows into the base (B), it controls a larger current flowing between the collector (C) and emitter (E).
Detailed Application Field Plans
- Audio amplification
- Signal processing circuits
- Switching circuits
- Oscillator circuits
Detailed and Complete Alternative Models
- BC847W,115
- BC858W,115
- 2N3904
- 2N2222A
This comprehensive entry provides an in-depth understanding of the BC857W,115 transistor, covering its specifications, features, advantages, disadvantages, working principles, application field plans, and alternative models.
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Liệt kê 10 câu hỏi và câu trả lời thường gặp liên quan đến ứng dụng BC857W,115 trong giải pháp kỹ thuật
What is the BC857W,115 transistor used for?
- The BC857W,115 is a general-purpose PNP transistor commonly used in amplification and switching applications.
What are the key specifications of the BC857W,115 transistor?
- The BC857W,115 has a maximum collector current (Ic) of 100mA, a maximum collector-base voltage (Vcbo) of -50V, and a maximum power dissipation (Ptot) of 250mW.
Can the BC857W,115 be used for audio amplification?
- Yes, the BC857W,115 can be used for small-signal audio amplification due to its low noise and high gain characteristics.
How do I identify the pinout of the BC857W,115 transistor?
- The pinout of the BC857W,115 is typically identified as the emitter (E), base (B), and collector (C) pins.
What are some common circuit configurations using the BC857W,115?
- Common circuit configurations include common-emitter amplifiers, switch circuits, and signal processing applications.
What are the temperature considerations for the BC857W,115?
- The BC857W,115 has a maximum operating temperature of 150°C, so thermal management should be considered in high-temperature environments.
Can the BC857W,115 be used in low-power applications?
- Yes, the BC857W,115 is suitable for low-power applications due to its moderate power dissipation and low collector current.
Are there any specific precautions when handling the BC857W,115?
- Standard ESD precautions should be followed when handling the BC857W,115 to prevent damage from electrostatic discharge.
What are the typical gain characteristics of the BC857W,115?
- The BC857W,115 has a high current gain (hfe) ranging from 110 to 800, making it suitable for amplification purposes.
Can the BC857W,115 be used in high-frequency applications?
- While the BC857W,115 is not specifically designed for high-frequency applications, it can still be used in moderate frequency ranges with appropriate circuit design.
Feel free to ask if you need further information on any of these questions!