Nexperia USA Inc.
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BC817-25/SNR
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BC817-25/SNR

Product Overview

Category

The BC817-25/SNR 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 voltage drop

Package

The BC817-25/SNR is available in a SOT-23 package.

Essence

This transistor is essential for electronic circuit design, particularly in low-power applications.

Packaging/Quantity

The BC817-25/SNR 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
  • Continuous Collector Current (IC): 500mA
  • Power Dissipation (Ptot): 625mW
  • Transition Frequency (ft): 100MHz

Detailed Pin Configuration

The BC817-25/SNR 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 form factor
  • Suitable for low-power applications
  • Reliable performance

Disadvantages

  • Limited power handling capability
  • Susceptible to thermal runaway at high currents

Working Principles

The BC817-25/SNR operates as a bipolar junction transistor (BJT), where the flow of current between the collector and emitter is controlled by the base current.

Detailed Application Field Plans

The BC817-25/SNR is widely used in: - Audio amplifiers - Signal processing circuits - Switching circuits - Sensor interfaces

Detailed and Complete Alternative Models

Some alternative models to the BC817-25/SNR include: - BC846 - BC847 - BC848

In conclusion, the BC817-25/SNR is a versatile small signal transistor with a wide range of applications in electronics due to its compact size, high current gain, and low power dissipation. Its characteristics make it suitable for various low-power amplification and switching tasks, although designers should be mindful of its limitations in high-power applications. Additionally, there are alternative models available that offer similar functionality, providing flexibility in component selection for different design requirements.

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Énumérez 10 questions et réponses courantes liées à l'application de BC817-25/SNR dans les solutions techniques

Sure, here are 10 common questions and answers related to the application of BC817-25/SNR in technical solutions:

  1. What is the BC817-25/SNR transistor used for?

    • The BC817-25/SNR is a general-purpose NPN bipolar junction transistor commonly used for amplification and switching applications.

  2. What are the key features of the BC817-25/SNR transistor?

    • The BC817-25/SNR transistor features a low voltage drop, high current capability, and low noise performance, making it suitable for various technical solutions.

  3. What is the maximum collector current of the BC817-25/SNR transistor?

    • The BC817-25/SNR transistor has a maximum collector current of 500mA, which allows it to handle moderate power requirements in many applications.

  4. Can the BC817-25/SNR transistor be used for audio amplification?

    • Yes, the BC817-25/SNR transistor can be used for small-signal audio amplification due to its low noise characteristics and moderate current handling capability.

  5. What are the typical applications of the BC817-25/SNR transistor?

    • Typical applications of the BC817-25/SNR include signal amplification, switching circuits, voltage regulation, and general purpose electronic control.

  6. Is the BC817-25/SNR transistor suitable for low-power applications?

    • Yes, the BC817-25/SNR transistor is well-suited for low-power applications due to its low voltage drop and moderate current handling capability.

  7. What is the maximum power dissipation of the BC817-25/SNR transistor?

    • The BC817-25/SNR transistor has a maximum power dissipation of 625mW, allowing it to handle moderate power levels without overheating.

  8. Can the BC817-25/SNR transistor be used in switching power supply designs?

    • Yes, the BC817-25/SNR transistor can be used in low to moderate power switching power supply designs due to its current and voltage handling capabilities.

  9. Does the BC817-25/SNR transistor require external heat sinking?

    • For most low to moderate power applications, the BC817-25/SNR transistor does not require external heat sinking due to its moderate power dissipation.

  10. Are there any special considerations when using the BC817-25/SNR transistor in high-frequency applications?

    • In high-frequency applications, parasitic capacitances and inductances should be carefully considered to ensure stable and predictable performance of the BC817-25/SNR transistor.