ON Semiconductor
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MJW21194
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MJW21194

Product Overview

Category: Power Transistor
Use: Amplification and switching applications
Characteristics: High power, high voltage, NPN bipolar junction transistor
Package: TO-247
Essence: Reliable and efficient power amplification
Packaging/Quantity: Single unit

Specifications

  • Voltage: 250V
  • Current: 16A
  • Power Dissipation: 250W
  • Gain (hfe): 25 to 100
  • Frequency: 4MHz

Detailed Pin Configuration

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

Functional Features

  • High power gain
  • Low saturation voltage
  • Fast switching speed
  • Excellent linearity

Advantages

  • Suitable for high-power audio amplifiers
  • Robust construction for reliable performance
  • Wide range of operating frequencies

Disadvantages

  • Higher cost compared to lower power transistors
  • Requires careful handling due to its high power capabilities

Working Principles

The MJW21194 operates as a voltage-controlled switch or amplifier. When a small signal is applied to the base terminal, it controls the larger current flowing between the collector and emitter terminals, allowing for amplification or switching of high-power signals.

Detailed Application Field Plans

  • Audio amplification systems
  • Power supply units
  • Motor control circuits
  • RF amplifiers

Detailed and Complete Alternative Models

  • MJW21193
  • MJW21195
  • MJL21194
  • MJL21196

This comprehensive entry provides an in-depth understanding of the MJW21194 power transistor, covering its specifications, features, advantages, disadvantages, working principles, application fields, and alternative models, making it a valuable resource for engineers and enthusiasts alike.

Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af MJW21194 i tekniske løsninger

  1. What is the MJW21194 transistor used for?

    • The MJW21194 is a high-power NPN bipolar junction transistor (BJT) commonly used in audio amplifiers, power supplies, and other high-power applications.

  2. What are the key specifications of the MJW21194 transistor?

    • The MJW21194 has a maximum collector current of 16A, a maximum collector-emitter voltage of 250V, and a power dissipation of 250W.

  3. How do I properly mount the MJW21194 transistor?

    • The MJW21194 should be mounted on a suitable heat sink to ensure proper thermal management and prevent overheating.

  4. Can the MJW21194 be used in audio amplifier circuits?

    • Yes, the MJW21194 is commonly used in audio amplifier circuits due to its high power handling capabilities and low distortion characteristics.

  5. What are the typical applications of the MJW21194 transistor?

    • Typical applications include high-power audio amplifiers, linear regulators, power supplies, and motor control circuits.

  6. What precautions should be taken when using the MJW21194 in high-power applications?

    • Proper heat sinking, adequate ventilation, and careful consideration of the operating conditions are essential to ensure reliable performance in high-power applications.

  7. Is the MJW21194 suitable for switching applications?

    • While the MJW21194 is primarily designed for linear applications, it can also be used in certain low-frequency switching applications.

  8. What are the recommended operating conditions for the MJW21194?

    • The MJW21194 operates best within a specified temperature range and under appropriate biasing and load conditions as outlined in the datasheet.

  9. Are there any common failure modes associated with the MJW21194?

    • Common failure modes include thermal runaway due to inadequate heat sinking, overvoltage stress, and excessive current leading to device breakdown.

  10. Where can I find detailed information about the MJW21194 transistor?

    • Detailed information, including electrical characteristics, thermal considerations, and application notes, can be found in the MJW21194 datasheet provided by the manufacturer.