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SH-21
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SH-21 Product Overview

Product Category

The SH-21 belongs to the category of electronic components, specifically within the semiconductor devices segment.

Basic Information Overview

  • Use: The SH-21 is utilized in electronic circuits for various applications such as amplification, switching, voltage regulation, and signal processing.
  • Characteristics: It is known for its high reliability, low power consumption, and compact size.
  • Package: The SH-21 is typically available in a small outline transistor (SOT) package.
  • Essence: This component serves as a crucial building block in electronic circuit design, enabling the creation of complex functionalities.
  • Packaging/Quantity: It is commonly packaged in reels or tubes, with quantities varying based on manufacturer specifications.

Specifications

  • Type: NPN Bipolar Junction Transistor (BJT)
  • Maximum Collector-Base Voltage: 60V
  • Maximum Collector Current: 1A
  • Power Dissipation: 625mW
  • Operating Temperature Range: -55°C to 150°C

Detailed Pin Configuration

The SH-21 features three pins: the emitter, base, and collector. The pinout configuration is as follows: - Emitter (E): Pin 1 - Base (B): Pin 2 - Collector (C): Pin 3

Functional Features

The SH-21 offers the following functional features: - High current gain - Low saturation voltage - Fast switching speed - Wide operating temperature range

Advantages and Disadvantages

Advantages

  • Reliable performance
  • Versatile application capabilities
  • Compact form factor

Disadvantages

  • Limited maximum voltage and current ratings compared to higher-power transistors
  • Sensitivity to electrostatic discharge (ESD)

Working Principles

The SH-21 operates based on the principles of bipolar junction transistor action, where the flow of current between the collector and emitter is controlled by the base current.

Detailed Application Field Plans

The SH-21 finds extensive use in the following application fields: - Audio amplification circuits - Signal processing circuits - Switching power supplies - Voltage regulation circuits - Oscillator circuits

Detailed and Complete Alternative Models

Some alternative models to the SH-21 include: - BC547 - 2N2222 - 2N3904 - PN2222

In conclusion, the SH-21 serves as a fundamental component in electronic circuit design, offering reliable performance and versatile functionality across various applications.

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Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi SH-21 dalam penyelesaian teknikal

  1. What is SH-21?

    • SH-21 is a high-performance synthetic lubricant designed for use in technical solutions requiring extreme temperature and pressure resistance.

  2. What are the key properties of SH-21?

    • SH-21 exhibits excellent thermal stability, low volatility, high load-carrying capacity, and exceptional anti-wear properties.

  3. In what applications can SH-21 be used?

    • SH-21 is suitable for use in industrial gearboxes, heavy-duty machinery, hydraulic systems, and other technical solutions operating under severe conditions.

  4. How does SH-21 perform at high temperatures?

    • SH-21 maintains its viscosity and lubricating properties even at elevated temperatures, making it ideal for applications where heat buildup is a concern.

  5. Is SH-21 compatible with other lubricants?

    • SH-21 is compatible with most mineral oils and synthetic lubricants, but compatibility testing should be conducted before mixing with other products.

  6. What are the storage requirements for SH-21?

    • SH-21 should be stored in a cool, dry place away from direct sunlight and sources of ignition to maintain its stability and performance.

  7. Does SH-21 require special handling procedures?

    • While SH-21 is generally safe to handle, appropriate personal protective equipment should be worn, and standard precautions for handling lubricants should be observed.

  8. Can SH-21 be used in food processing equipment?

    • No, SH-21 is not recommended for use in food processing equipment due to the potential risk of contamination.

  9. What environmental considerations should be taken into account when using SH-21?

    • Spills of SH-21 should be contained and reported in accordance with local regulations to minimize environmental impact.

  10. How often should SH-21 be replaced in equipment?

    • The replacement interval for SH-21 depends on operating conditions and manufacturer recommendations, but regular oil analysis can help determine the optimal change-out schedule.