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1SMA4747TR
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1SMA4747TR

Product Overview

Category

The 1SMA4747TR belongs to the category of surface mount silicon zener diodes.

Use

It is commonly used for voltage regulation and transient suppression in various electronic circuits.

Characteristics

  • Low leakage current
  • High reliability
  • Fast response time

Package

The 1SMA4747TR is typically available in a surface mount DO-214AC (SMA) package.

Essence

This zener diode serves as a crucial component in protecting sensitive electronic devices from voltage spikes and surges.

Packaging/Quantity

The 1SMA4747TR is usually packaged in reels with quantities varying based on manufacturer specifications.

Specifications

  • Zener Voltage: 18V
  • Power Dissipation: 1.5W
  • Operating Temperature Range: -65°C to +150°C
  • Forward Voltage: 1.2V
  • Reverse Leakage Current: 5µA

Detailed Pin Configuration

The 1SMA4747TR typically has two pins, with the anode connected to the positive terminal and the cathode connected to the negative terminal.

Functional Features

  • Voltage regulation
  • Transient suppression
  • Overvoltage protection

Advantages

  • High reliability
  • Fast response time
  • Low leakage current

Disadvantages

  • Limited power dissipation capability
  • Sensitive to temperature variations

Working Principles

The 1SMA4747TR operates by allowing current to flow in reverse when the voltage across it exceeds the zener voltage, effectively clamping the voltage to the zener voltage level.

Detailed Application Field Plans

The 1SMA4747TR is widely used in: - Power supplies - Communication equipment - Automotive electronics - Industrial control systems

Detailed and Complete Alternative Models

Some alternative models to the 1SMA4747TR include: - 1N4747A - BZX85C18 - MMSZ5248B

In conclusion, the 1SMA4747TR zener diode is a vital component in electronic circuits, providing voltage regulation and transient suppression. Its high reliability and fast response time make it suitable for various applications, although its limited power dissipation capability and sensitivity to temperature variations should be considered in design implementations.

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기술 솔루션에 1SMA4747TR 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.

  1. What is 1SMA4747TR?

    • 1SMA4747TR is a surface mount, high-power, transient voltage suppressor diode designed to protect sensitive electronics from voltage transients induced by lightning, inductive load switching, and electrostatic discharge.

  2. What is the maximum peak pulse power of 1SMA4747TR?

    • The maximum peak pulse power is 1000 watts for a 10/1000µs waveform.

  3. What is the breakdown voltage of 1SMA4747TR?

    • The breakdown voltage is 47 volts.

  4. What are the typical applications of 1SMA4747TR?

    • Typical applications include protection of sensitive electronic equipment such as telecommunication systems, industrial controls, consumer electronics, and automotive electronics.

  5. What is the operating temperature range of 1SMA4747TR?

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

  6. What is the package type of 1SMA4747TR?

    • It is available in a DO-214AC (SMA) package.

  7. What is the clamping voltage of 1SMA4747TR?

    • The clamping voltage is typically 77.4 volts at 10A.

  8. How does 1SMA4747TR provide protection against voltage transients?

    • 1SMA4747TR suppresses voltage transients by diverting excessive current away from sensitive components, thereby limiting the voltage across the protected device.

  9. Can 1SMA4747TR be used in automotive applications?

    • Yes, 1SMA4747TR is suitable for use in automotive electronics due to its ability to protect against transient voltage events.

  10. Is 1SMA4747TR RoHS compliant?

    • Yes, 1SMA4747TR is compliant with the Restriction of Hazardous Substances (RoHS) directive, making it suitable for use in environmentally conscious designs.