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BC857AMTF
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BC857AMTF

Product Overview

Category: Transistor
Use: Amplification and switching in electronic circuits
Characteristics: Small signal transistor, low power dissipation, high current gain
Package: SOT-23
Essence: NPN general-purpose transistor
Packaging/Quantity: Tape and reel, 3000 pieces per reel

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
  • Operating Temperature Range: -55°C to 150°C

Detailed Pin Configuration

  1. Emitter (E)
  2. Base (B)
  3. Collector (C)

Functional Features

  • High current gain
  • Low voltage drop
  • Fast switching speed
  • Small package size

Advantages and Disadvantages

Advantages: - Suitable for low-power applications - Compact SOT-23 package - High transition frequency

Disadvantages: - Limited collector current compared to other transistors - Relatively low breakdown voltage

Working Principles

The BC857AMTF is an NPN general-purpose transistor used for amplification and switching. When a small current flows into the base (B) terminal, it controls a larger current flowing between the collector (C) and emitter (E) terminals. This allows the transistor to amplify signals or act as a switch in electronic circuits.

Detailed Application Field Plans

The BC857AMTF is commonly used in audio amplifiers, signal processing circuits, and low-power switching applications. Its small size and high current gain make it suitable for portable electronic devices and compact circuit designs.

Detailed and Complete Alternative Models

  • BC847AMTF
  • BC856AMTF
  • 2N3904
  • 2N2222A
  • 2SC945

Note: The alternative models listed above are similar NPN transistors with comparable characteristics and package types.

This comprehensive entry provides detailed information about the BC857AMTF transistor, including its product overview, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.