ON Semiconductor
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পণ্যের বিবরণের জন্য স্পেসিফিকেশন দেখুন৷.
BF493SG
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BF493SG

Product Overview

Category

The BF493SG belongs to the category of semiconductor devices, specifically a bipolar junction transistor (BJT).

Use

It is commonly used as an amplifying component in electronic circuits.

Characteristics

  • High gain and low noise
  • Suitable for audio frequency amplification
  • Low power consumption

Package

The BF493SG is typically available in a TO-92 package.

Essence

This transistor is essential for signal amplification in various electronic applications.

Packaging/Quantity

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

Specifications

  • Collector-Base Voltage: 25V
  • Collector-Emitter Voltage: 25V
  • Emitter-Base Voltage: 5V
  • Collector Current: 0.2A
  • Power Dissipation: 625mW
  • Transition Frequency: 150MHz
  • Operating Temperature: -55°C to 150°C

Detailed Pin Configuration

The BF493SG has three pins: 1. Collector (C) 2. Base (B) 3. Emitter (E)

Functional Features

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

Advantages

  • Low noise amplification
  • Suitable for low-power applications
  • Wide operating temperature range

Disadvantages

  • Limited power handling capability
  • Relatively low transition frequency

Working Principles

The BF493SG operates based on the principles of bipolar junction transistors, utilizing the control of current flow between its terminals to amplify signals.

Detailed Application Field Plans

The BF493SG is widely used in: - Audio amplifiers - Signal processing circuits - Oscillator circuits - Low-power switching applications

Detailed and Complete Alternative Models

Some alternative models to the BF493SG include: - BC547 - 2N3904 - 2SC945 - 2N2222

In conclusion, the BF493SG is a versatile and widely-used BJT with specific advantages and limitations that make it suitable for various low-power electronic applications.

[Word Count: 270]

প্রযুক্তিগত সমাধানে BF493SG এর প্রয়োগ সম্পর্কিত 10টি সাধারণ প্রশ্ন ও উত্তর তালিকাভুক্ত করুন

  1. What is BF493SG?

    • BF493SG is a high-gain NPN silicon epitaxial planar transistor commonly used in electronic circuits.

  2. What are the typical applications of BF493SG?

    • BF493SG is often used in audio amplifiers, low-frequency oscillators, and general-purpose switching circuits.

  3. What is the maximum collector current for BF493SG?

    • The maximum collector current for BF493SG is typically around 500mA.

  4. What is the voltage rating for BF493SG?

    • BF493SG has a voltage rating of around 40V.

  5. What is the gain (hFE) of BF493SG?

    • The gain or hFE of BF493SG typically ranges from 100 to 300.

  6. Can BF493SG be used in high-frequency applications?

    • No, BF493SG is not suitable for high-frequency applications due to its limited frequency response.

  7. What are the key characteristics of BF493SG that make it suitable for audio amplifiers?

    • BF493SG offers high gain, low noise, and good linearity, making it well-suited for audio amplifier applications.

  8. Is BF493SG suitable for use in power supply circuits?

    • No, BF493SG is not designed for use in power supply circuits due to its limited voltage and current ratings.

  9. What are the typical operating conditions for BF493SG?

    • BF493SG is typically operated at a collector current of a few milliamperes and a collector-emitter voltage of a few volts.

  10. Are there any common alternative transistors to BF493SG?

    • Some common alternative transistors to BF493SG include BC547, 2N2222, and 2N3904, which have similar characteristics and can be used as substitutes in many applications.