ON Semiconductor
Gambar mungkin merupakan representasi.
Lihat spesifikasi untuk detail produk.
BC548A
Lihat Detail Lembar Data

BC548A Transistor

Product Overview

Category

The BC548A transistor belongs to the category of small signal NPN bipolar junction transistors.

Use

It is commonly used for amplification and switching purposes in electronic circuits.

Characteristics

  • Low power, low noise amplifier
  • High current gain
  • Medium voltage rating
  • Small package size

Package

The BC548A is typically available in a TO-92 package.

Essence

This transistor is essential for amplifying weak signals and controlling larger currents in various electronic applications.

Packaging/Quantity

It is usually packaged in reels or tubes, with quantities varying based on manufacturer specifications.

Specifications

  • Collector-Emitter Voltage (Vce): 30V
  • Collector-Base Voltage (Vcb): 30V
  • Emitter-Base Voltage (Veb): 5V
  • Collector Current (Ic): 100mA
  • Power Dissipation (Pd): 500mW
  • Transition Frequency (ft): 150MHz

Detailed Pin Configuration

The BC548A transistor has three pins: 1. Base (B) 2. Collector (C) 3. Emitter (E)

Functional Features

  • High current gain allows for small base current to control larger collector current.
  • Low noise amplification makes it suitable for audio applications.
  • Medium voltage rating enables use in a wide range of circuit designs.

Advantages

  • Versatile and widely available
  • Suitable for low-power applications
  • Economical and cost-effective

Disadvantages

  • Limited voltage and current handling capabilities compared to power transistors
  • Sensitive to temperature variations

Working Principles

The BC548A operates based on the principles of bipolar junction transistors, where the flow of current between the collector and emitter is controlled by the base current.

Detailed Application Field Plans

  • Audio amplifiers
  • Signal amplification in sensor circuits
  • Switching applications in electronic control systems
  • Oscillator circuits

Detailed and Complete Alternative Models

  • BC547
  • 2N3904
  • 2N2222
  • 2N4401

In conclusion, the BC548A transistor is a versatile component widely used in electronic circuits for amplification and switching purposes. Its compact size, high current gain, and medium voltage rating make it suitable for a variety of low-power applications. While it has limitations in terms of voltage and current handling, its cost-effectiveness and widespread availability make it a popular choice among electronics enthusiasts and professionals alike.

[Word count: 366]

Sebutkan 10 pertanyaan dan jawaban umum terkait penerapan BC548A dalam solusi teknis

  1. What is the BC548A transistor used for?

    • The BC548A transistor is commonly used for amplification and switching applications in electronic circuits.

  2. What are the typical operating conditions for the BC548A transistor?

    • The BC548A transistor typically operates at a maximum collector current of 100mA and a maximum collector-emitter voltage of 30V.

  3. How do I identify the pinout of the BC548A transistor?

    • The pinout of the BC548A transistor is typically identified as the emitter (E), base (B), and collector (C) pins, with the flat side facing towards you and the pins down.

  4. Can the BC548A be used as a switch in a circuit?

    • Yes, the BC548A can be used as a switch in low-power applications due to its ability to control larger currents and voltages with a small input signal.

  5. What are some common circuit configurations using the BC548A transistor?

    • Common circuit configurations include common emitter amplifiers, switch circuits, and oscillator circuits.

  6. What are the key characteristics of the BC548A transistor?

    • The BC548A transistor has high current gain, low noise, and low distortion, making it suitable for audio amplifier applications.

  7. What are the temperature limitations of the BC548A transistor?

    • The BC548A transistor typically operates within a temperature range of -65°C to 150°C.

  8. Can the BC548A be used in audio amplifier circuits?

    • Yes, the BC548A is commonly used in low-power audio amplifier circuits due to its high current gain and low distortion characteristics.

  9. Are there any common alternatives to the BC548A transistor?

    • Common alternatives include the BC547, BC549, and 2N3904 transistors, which have similar characteristics and pinouts.

  10. What precautions should be taken when handling the BC548A transistor?

    • Precautions include avoiding static discharge, ensuring proper heat dissipation, and observing the correct polarity during installation to prevent damage to the transistor.