Panasonic Electronic Components
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UNR921AJ0L
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UNR921AJ0L

Product Overview

Category: Transistor
Use: Amplification and switching of electronic signals
Characteristics: High voltage, high current, low power consumption
Package: TO-220AB
Essence: NPN Silicon Epitaxial Planar Transistor
Packaging/Quantity: Bulk packaging, 100 pieces per pack

Specifications

  • Collector-Emitter Voltage: 300V
  • Collector Current: 10A
  • Power Dissipation: 40W
  • Transition Frequency: 3MHz
  • Operating Temperature: -55°C to +150°C

Detailed Pin Configuration

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

Functional Features

  • High voltage capability
  • Low saturation voltage
  • Complementary to UPR921BJ0L

Advantages and Disadvantages

Advantages: - High voltage and current ratings - Low power consumption - Wide operating temperature range

Disadvantages: - Relatively low transition frequency - Bulk packaging may not be suitable for all applications

Working Principles

The UNR921AJ0L operates as a bipolar junction transistor (BJT), utilizing the movement of charge carriers within the semiconductor to amplify or switch electronic signals. When a small current flows into the base terminal, it controls a larger current flow between the collector and emitter terminals.

Detailed Application Field Plans

The UNR921AJ0L is commonly used in audio amplifiers, power supply circuits, and electronic control systems where high voltage and current capabilities are required. Its low power consumption makes it suitable for portable electronic devices as well.

Detailed and Complete Alternative Models

  • UPR921BJ0L
  • UNR921AK0L
  • UNR921AL0L

This completes the entry for UNR921AJ0L, providing comprehensive information about its category, use, characteristics, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

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Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van UNR921AJ0L in technische oplossingen

  1. What is UNR921AJ0L?

    • UNR921AJ0L is a PNP epitaxial silicon transistor designed for use in various electronic circuits.

  2. What are the typical applications of UNR921AJ0L?

    • UNR921AJ0L is commonly used in audio amplifiers, voltage regulators, and power management circuits.

  3. What is the maximum collector current of UNR921AJ0L?

    • The maximum collector current of UNR921AJ0L is 1.5A.

  4. What is the maximum power dissipation of UNR921AJ0L?

    • The maximum power dissipation of UNR921AJ0L is 1.25W.

  5. What is the voltage rating of UNR921AJ0L?

    • UNR921AJ0L has a voltage rating of 50V.

  6. Is UNR921AJ0L suitable for high-frequency applications?

    • No, UNR921AJ0L is not recommended for high-frequency applications due to its characteristics.

  7. Can UNR921AJ0L be used in switching circuits?

    • Yes, UNR921AJ0L can be used in low-power switching circuits.

  8. What is the operating temperature range of UNR921AJ0L?

    • The operating temperature range of UNR921AJ0L is -55°C to 150°C.

  9. Does UNR921AJ0L require a heat sink for operation?

    • It is recommended to use a heat sink when operating UNR921AJ0L near its maximum power dissipation.

  10. Are there any common failure modes associated with UNR921AJ0L?

    • Common failure modes include thermal runaway and overvoltage breakdown, so proper circuit design and protection measures are important.