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BC857AW-G
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BC857AW-G

Product Overview

Category

The BC857AW-G belongs to the category of small-signal transistors.

Use

It is commonly used for amplification and switching of electronic signals in various applications.

Characteristics

  • Low power dissipation
  • High current gain
  • Low noise

Package

The BC857AW-G is available in a SOT-323 package.

Essence

This transistor is essential for signal amplification and switching in electronic circuits.

Packaging/Quantity

The BC857AW-G is typically packaged in reels with quantities varying based on manufacturer specifications.

Specifications

  • Collector-Base Voltage (VCBO): 45V
  • Collector-Emitter Voltage (VCEO): 45V
  • Emitter-Base Voltage (VEBO): 5V
  • Collector Current (IC): 100mA
  • Power Dissipation (PD): 250mW
  • Transition Frequency (fT): 100MHz

Detailed Pin Configuration

The BC857AW-G has three pins: 1. Emitter (E) 2. Base (B) 3. Collector (C)

Functional Features

  • High current gain
  • Low saturation voltage
  • Fast switching speed

Advantages

  • Small size
  • Low power consumption
  • Versatile usage

Disadvantages

  • Limited power handling capability
  • Sensitivity to overvoltage conditions

Working Principles

The BC857AW-G operates based on the principles of bipolar junction transistors, utilizing the control of current flow for signal amplification and switching.

Detailed Application Field Plans

The BC857AW-G finds applications in: - Audio amplifiers - Signal processing circuits - Switching circuits - Oscillator circuits

Detailed and Complete Alternative Models

Some alternative models to the BC857AW-G include: - BC847AW-G - BC856AW-G - 2N3904

In conclusion, the BC857AW-G is a versatile small-signal transistor with high current gain and low power dissipation, making it suitable for various electronic applications.

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Listen Sie 10 häufige Fragen und Antworten im Zusammenhang mit der Anwendung von BC857AW-G in technischen Lösungen auf

  1. What is the BC857AW-G transistor used for?

    • The BC857AW-G is a general-purpose PNP transistor commonly used in amplification and switching applications.

  2. What are the key features of the BC857AW-G transistor?

    • The BC857AW-G transistor features low current and low voltage operation, making it suitable for battery-powered applications. It also has high current gain and low saturation voltage.

  3. What are the typical applications of the BC857AW-G transistor?

    • Typical applications include audio amplification, signal processing, and low-power switching circuits.

  4. What is the maximum collector current of the BC857AW-G transistor?

    • The maximum collector current (Ic) of the BC857AW-G transistor is 100mA.

  5. What is the maximum collector-emitter voltage of the BC857AW-G transistor?

    • The maximum collector-emitter voltage (Vce) of the BC857AW-G transistor is 45V.

  6. Is the BC857AW-G transistor suitable for high-frequency applications?

    • The BC857AW-G transistor is not specifically designed for high-frequency applications, but it can be used in low to moderate frequency circuits.

  7. What is the thermal resistance of the BC857AW-G transistor?

    • The thermal resistance from junction to ambient (RthJA) of the BC857AW-G transistor is approximately 250°C/W.

  8. Can the BC857AW-G transistor be used in SMD (Surface Mount Device) applications?

    • Yes, the BC857AW-G is available in SOT-323 surface mount package, making it suitable for SMD applications.

  9. Does the BC857AW-G transistor require external biasing?

    • Yes, the BC857AW-G transistor requires proper biasing to operate within its specified parameters.

  10. Are there any recommended alternative transistors to the BC857AW-G for similar applications?

    • Some alternative transistors with similar characteristics include BC807, 2N3906, and 2N4403. However, it's important to consult the datasheets and consider the specific requirements of the application before selecting an alternative.