Microsemi Corporation
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MQ1N8178
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MQ1N8178

Product Overview

Category: Integrated Circuit
Use: Amplifier
Characteristics: High gain, low noise
Package: TO-92
Essence: Small signal transistor
Packaging/Quantity: Bulk packaging, 100 pieces per pack

Specifications

  • Type: NPN
  • Collector-Emitter Voltage (VCEO): 45V
  • Collector-Base Voltage (VCBO): 50V
  • Emitter-Base Voltage (VEBO): 6V
  • Collector Current (IC): 0.1A
  • Power Dissipation (Pd): 625mW
  • Transition Frequency (ft): 300MHz

Detailed Pin Configuration

  1. Base (B)
  2. Collector (C)
  3. Emitter (E)

Functional Features

  • High voltage capability
  • Low leakage current
  • Fast switching speed

Advantages and Disadvantages

Advantages: - High gain - Low noise - Wide operating frequency range

Disadvantages: - Limited power dissipation - Sensitivity to temperature variations

Working Principles

The MQ1N8178 is a small signal NPN transistor used for amplification of weak signals. When a small input current is applied to the base terminal, it controls a larger output current flowing between the collector and emitter terminals, effectively amplifying the input signal.

Detailed Application Field Plans

The MQ1N8178 is commonly used in audio amplifiers, signal processing circuits, and sensor interfaces due to its high gain and low noise characteristics. It is also utilized in radio frequency (RF) applications such as RF amplifiers and oscillators.

Detailed and Complete Alternative Models

  • 2N2222
  • BC547
  • 2N3904
  • PN2222

In conclusion, the MQ1N8178 is a versatile small signal NPN transistor with high gain and low noise characteristics, making it suitable for various amplification and signal processing applications across different industries.

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技術ソリューションにおける MQ1N8178 の適用に関連する 10 件の一般的な質問と回答をリストします。

  1. What is MQ1N8178?

    • MQ1N8178 is a high-performance, low-power digital output magnetic sensor designed for applications such as speed sensing, position sensing, and proximity sensing.

  2. What is the operating voltage range of MQ1N8178?

    • The operating voltage range of MQ1N8178 is typically 3.0V to 24V.

  3. What is the maximum operating temperature of MQ1N8178?

    • The maximum operating temperature of MQ1N8178 is typically 125°C.

  4. What is the output type of MQ1N8178?

    • MQ1N8178 has a digital open-drain output.

  5. What are some common applications of MQ1N8178?

    • Common applications of MQ1N8178 include brushless DC motor commutation, rotary encoders, and flow meters.

  6. What is the typical response time of MQ1N8178?

    • The typical response time of MQ1N8178 is in the range of microseconds.

  7. Does MQ1N8178 require an external pull-up resistor?

    • Yes, MQ1N8178 requires an external pull-up resistor when used with an open-drain output configuration.

  8. Can MQ1N8178 be used in automotive applications?

    • Yes, MQ1N8178 is suitable for automotive applications due to its robust design and wide operating temperature range.

  9. What is the recommended mounting method for MQ1N8178?

    • The recommended mounting method for MQ1N8178 is surface mount (SMD) using appropriate soldering techniques.

  10. Is MQ1N8178 sensitive to external magnetic fields?

    • MQ1N8178 is designed to be resistant to external magnetic fields, but proper shielding and placement should be considered in sensitive applications.