Central Semiconductor Corp
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2N691
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2N691 Transistor

Product Overview

The 2N691 is a silicon NPN transistor that falls under the category of small-signal transistors. It is commonly used for amplification and switching applications due to its high frequency and low power characteristics. The transistor is typically packaged in a TO-18 metal can, with a quantity of one per package.

Characteristics

  • Category: Small-signal transistor
  • Use: Amplification and switching
  • Package: TO-18 metal can
  • Quantity: One per package

Specifications

The 2N691 transistor has the following specifications: - Collector-Base Voltage (VCBO): 40V - Collector-Emitter Voltage (VCEO): 25V - Emitter-Base Voltage (VEBO): 4V - Collector Current (IC): 0.1A - Power Dissipation (PD): 0.3W - Transition Frequency (ft): 200MHz - Operating Temperature Range: -65°C to 200°C

Detailed Pin Configuration

The 2N691 transistor has three pins: 1. Base (B) 2. Collector (C) 3. Emitter (E)

Functional Features

The 2N691 transistor offers the following functional features: - High frequency capability - Low power consumption - Reliable amplification and switching performance

Advantages and Disadvantages

Advantages

  • High transition frequency
  • Low power dissipation
  • Wide operating temperature range

Disadvantages

  • Limited collector current capacity
  • Relatively low collector-emitter voltage rating

Working Principles

The 2N691 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 2N691 transistor finds extensive use in various electronic applications, including: - Audio amplifiers - Oscillators - Signal generators - Switching circuits

Detailed and Complete Alternative Models

Some alternative models to the 2N691 transistor include: - 2N2222 - BC547 - 2N3904 - 2N4401

In conclusion, the 2N691 transistor is a versatile component suitable for amplification and switching tasks in a wide range of electronic applications. Its high frequency capability and low power consumption make it an ideal choice for compact and efficient circuit designs.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de 2N691 en soluciones técnicas

  1. What is the 2N691 transistor used for?

    • The 2N691 is a general-purpose NPN transistor commonly used in amplification and switching applications.

  2. What are the typical operating conditions for the 2N691 transistor?

    • The 2N691 transistor typically operates at a maximum collector current of 500mA, with a maximum collector-emitter voltage of 40V.

  3. Can the 2N691 be used for audio amplification?

    • Yes, the 2N691 can be used for small-signal audio amplification due to its low noise and high gain characteristics.

  4. How do I connect the 2N691 in a common-emitter amplifier circuit?

    • In a common-emitter amplifier circuit, the 2N691 transistor is typically connected with the base as the input, the collector as the output, and the emitter grounded through a biasing resistor.

  5. What are the typical applications of the 2N691 in electronic circuits?

    • The 2N691 transistor is commonly used in audio amplifiers, signal processing circuits, and general switching applications.

  6. What are the key specifications to consider when using the 2N691 in a design?

    • Key specifications to consider include the maximum collector current, maximum power dissipation, and the gain bandwidth product.

  7. Can the 2N691 be used in high-frequency applications?

    • While the 2N691 has moderate frequency capabilities, it may not be suitable for very high-frequency applications due to its transition frequency and capacitance characteristics.

  8. Are there any common failure modes or issues associated with the 2N691 transistor?

    • Common failure modes include thermal runaway under high current conditions and breakdown due to excessive voltage stress.

  9. What are some alternative transistors that can be used if the 2N691 is not available?

    • Alternatives to the 2N691 include the 2N3904, BC547, and 2N2222 transistors, which have similar characteristics and can be used as substitutes in many applications.

  10. Where can I find detailed datasheets and application notes for the 2N691 transistor?

    • Detailed datasheets and application notes for the 2N691 transistor can be found on semiconductor manufacturer websites or electronic component distributor platforms.