ON Semiconductor
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MPSA18_D74Z
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MPSA18_D74Z

Product Overview

Category: Transistor
Use: Amplification and switching
Characteristics: High gain, low noise, small package size
Package: TO-92
Essence: NPN bipolar junction transistor
Packaging/Quantity: Bulk packaging, 100 pieces per pack

Specifications

  • Collector-Base Voltage (VCBO): 40V
  • Collector-Emitter Voltage (VCEO): 25V
  • Emitter-Base Voltage (VEBO): 6V
  • Collector Current (IC): 0.2A
  • Power Dissipation (PD): 625mW
  • Transition Frequency (fT): 100MHz
  • Operating Temperature: -55°C to 150°C

Detailed Pin Configuration

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

Functional Features

  • High current gain
  • Low noise
  • Suitable for audio amplification and signal processing circuits

Advantages

  • Small package size
  • Versatile applications
  • Low cost

Disadvantages

  • Limited power handling capability
  • Susceptible to thermal runaway

Working Principles

The MPSA18_D74Z operates as an NPN transistor, where a small current at the base terminal controls a larger current flow between the collector and emitter terminals. This allows for amplification and switching of electronic signals.

Detailed Application Field Plans

  1. Audio Amplification: Used in small audio amplifiers and preamplifier stages.
  2. Signal Processing Circuits: Employed in various signal processing applications due to its low noise characteristics.
  3. Switching Circuits: Utilized in low-power switching applications such as LED drivers and relay control circuits.

Detailed and Complete Alternative Models

  1. 2N3904
  2. BC547
  3. 2N2222

This comprehensive entry provides detailed information about the MPSA18_D74Z transistor, including its specifications, pin configuration, functional features, advantages, disadvantages, working principles, application field plans, and alternative models, making it a valuable resource for engineers and enthusiasts in the electronics industry.

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací MPSA18_D74Z v technických řešeních

  1. What is MPSA18_D74Z?

    • MPSA18_D74Z is a high voltage NPN bipolar junction transistor (BJT) commonly used in electronic circuits for amplification and switching applications.

  2. What are the key specifications of MPSA18_D74Z?

    • The key specifications include a maximum collector-emitter voltage of 60V, a continuous collector current of 0.5A, and a power dissipation of 625mW.

  3. How can MPSA18_D74Z be used in amplifier circuits?

    • MPSA18_D74Z can be used as a small-signal amplifier in audio and other low-power applications due to its high voltage and current capabilities.

  4. In what types of switching applications can MPSA18_D74Z be utilized?

    • MPSA18_D74Z can be used in low-power switching applications such as relay drivers, LED drivers, and general purpose switching circuits.

  5. What are the typical operating conditions for MPSA18_D74Z?

    • The typical operating conditions include a collector current of 100mA, a collector-emitter voltage of 20V, and a base current of 10mA.

  6. Can MPSA18_D74Z be used in high-temperature environments?

    • Yes, MPSA18_D74Z has a maximum operating temperature of 150°C, making it suitable for use in various environmental conditions.

  7. What are the recommended biasing configurations for MPSA18_D74Z?

    • Common biasing configurations include fixed bias, emitter bias, and voltage divider bias, depending on the specific application requirements.

  8. Are there any alternative transistors that can be used as substitutes for MPSA18_D74Z?

    • Yes, similar transistors such as MPSA13 and MPSA42 can be used as substitutes, but it's important to consider their specific characteristics and limitations.

  9. What are the typical gain characteristics of MPSA18_D74Z?

    • The current gain (hFE) of MPSA18_D74Z typically ranges from 100 to 250, depending on the operating conditions and biasing.

  10. Where can I find detailed application notes and reference designs for using MPSA18_D74Z in technical solutions?

    • Detailed application notes and reference designs can be found in the datasheet provided by the manufacturer, as well as in technical literature and online resources related to transistor applications.