Diodes Incorporated
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BC858B-7-F
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BC858B-7-F Product Overview

Introduction

The BC858B-7-F is a versatile electronic component that belongs to the category of small-signal transistors. This entry provides an in-depth overview of the product, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

  • Category: Small-signal transistors
  • Use: Amplification and switching applications
  • Characteristics: High current gain, low noise, and low power dissipation
  • Package: SOT-23
  • Essence: NPN silicon epitaxial planar transistor
  • Packaging/Quantity: Tape and reel, 3000 units per reel

Specifications

  • Collector-Base Voltage (VCBO): 30V
  • Collector-Emitter Voltage (VCEO): 20V
  • Emitter-Base Voltage (VEBO): 5V
  • Collector Current (IC): 100mA
  • Power Dissipation (PD): 250mW
  • Transition Frequency (fT): 150MHz
  • Operating Temperature Range: -55°C to 150°C

Detailed Pin Configuration

The BC858B-7-F transistor has three pins: 1. Collector (C) 2. Base (B) 3. Emitter (E)

Functional Features

  • High current gain
  • Low noise
  • Low power dissipation
  • Fast switching speed

Advantages and Disadvantages

Advantages

  • Suitable for low-power amplification and switching applications
  • Compact SOT-23 package for space-constrained designs
  • Wide operating temperature range

Disadvantages

  • Limited maximum collector current compared to other transistors
  • Relatively lower transition frequency

Working Principles

The BC858B-7-F operates based on the principles of bipolar junction transistors, utilizing the flow of charge carriers to amplify or switch electronic signals.

Detailed Application Field Plans

The BC858B-7-F is commonly used in the following applications: - Audio amplifiers - Signal amplification circuits - Switching circuits - Oscillator circuits

Detailed and Complete Alternative Models

Some alternative models to the BC858B-7-F include: - BC847B - BC846B - BC856B - BC857B

In conclusion, the BC858B-7-F is a small-signal transistor with versatile applications in amplification and switching circuits. Its compact package and favorable characteristics make it suitable for various electronic designs.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de BC858B-7-F en soluciones técnicas

  1. What is the BC858B-7-F transistor used for?

    • The BC858B-7-F transistor is commonly used for amplification and switching applications in electronic circuits.

  2. What are the key specifications of the BC858B-7-F transistor?

    • The BC858B-7-F is a PNP bipolar junction transistor with a maximum collector current of 100mA, a maximum collector-base voltage of 30V, and a maximum power dissipation of 200mW.

  3. How can the BC858B-7-F transistor be used in amplifier circuits?

    • The BC858B-7-F transistor can be used as a small-signal amplifier in audio and other low-power applications due to its high current gain and low noise characteristics.

  4. In what types of switching applications is the BC858B-7-F transistor commonly employed?

    • The BC858B-7-F transistor is often used in low-power switching applications such as signal routing, level shifting, and general purpose digital logic.

  5. What are the typical operating conditions for the BC858B-7-F transistor?

    • The BC858B-7-F transistor is typically operated at a collector current of around 10-50mA and a collector-emitter voltage of 5-15V.

  6. Can the BC858B-7-F transistor be used in high-frequency applications?

    • While the BC858B-7-F transistor has limited high-frequency performance, it can still be used in moderate frequency applications such as audio amplification and signal processing.

  7. What are some common alternatives to the BC858B-7-F transistor?

    • Common alternatives to the BC858B-7-F include the BC857B-7-F (NPN) and BC859B-7-F (PNP) transistors, which offer similar characteristics and performance.

  8. Are there any specific considerations for PCB layout when using the BC858B-7-F transistor?

    • It's important to minimize lead lengths and keep the emitter-base junction close to the collector-base junction to reduce parasitic capacitance and improve high-frequency performance.

  9. What are the temperature limitations of the BC858B-7-F transistor?

    • The BC858B-7-F transistor is rated for operation within a temperature range of -55°C to 150°C, making it suitable for a wide range of environmental conditions.

  10. Where can I find detailed application notes and reference designs for the BC858B-7-F transistor?

    • Detailed application notes and reference designs for the BC858B-7-F transistor can be found on the manufacturer's website or in technical literature related to discrete semiconductor components.