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1SMA4748TR
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1SMA4748TR

Product Overview

The 1SMA4748TR belongs to the category of semiconductor devices and is commonly used for voltage clamping applications. This product is characterized by its ability to protect sensitive electronic components from voltage transients induced by lightning, inductive load switching, and electrostatic discharge. The 1SMA4748TR is typically packaged in a small, surface-mount package, making it suitable for compact electronic designs. It is available in tape and reel packaging with a specified quantity per reel.

Specifications

  • Part Number: 1SMA4748TR
  • Category: Semiconductor Devices
  • Use: Voltage Clamping
  • Characteristics: Protection from Voltage Transients
  • Package: Surface-Mount
  • Packaging/Quantity: Tape and Reel, Specified Quantity per Reel

Detailed Pin Configuration

The 1SMA4748TR features a standard surface-mount package with two pins. Pin 1 is typically designated as the anode, while pin 2 serves as the cathode.

Functional Features

The primary function of the 1SMA4748TR is to limit the voltage across sensitive electronic components by diverting excessive current away from the protected circuitry during transient voltage events. This ensures that the voltage does not exceed a safe threshold, thereby safeguarding the connected devices.

Advantages and Disadvantages

Advantages

  • Effective protection against voltage transients
  • Compact surface-mount package
  • Suitable for high-frequency applications

Disadvantages

  • Limited power dissipation capability
  • May require additional circuitry for comprehensive overvoltage protection

Working Principles

The 1SMA4748TR operates based on the principle of avalanche breakdown. When the voltage across the device exceeds its rated value, it enters a state of avalanche breakdown, allowing it to conduct excess current and limit the voltage across the protected circuit.

Detailed Application Field Plans

The 1SMA4748TR finds extensive use in various electronic systems requiring protection from voltage transients. Common application fields include: - Power Supplies - Communication Equipment - Industrial Control Systems - Automotive Electronics - Consumer Electronics

Detailed and Complete Alternative Models

For users seeking alternative models with similar functionality, the following options are available: - 1SMA4747TR - 1SMA4749TR - 1SMA4750TR - 1SMA4751TR

In conclusion, the 1SMA4748TR is a vital component in electronic systems, providing essential protection from voltage transients and ensuring the reliable operation of sensitive electronic devices.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av 1SMA4748TR i tekniska lösningar

Sure, here are 10 common questions and answers related to the application of 1SMA4748TR in technical solutions:

  1. What is the maximum reverse stand-off voltage of 1SMA4748TR?

    • The maximum reverse stand-off voltage of 1SMA4748TR is 48V.

  2. What is the peak pulse power dissipation of 1SMA4748TR?

    • The peak pulse power dissipation of 1SMA4748TR is 400W.

  3. What are the typical applications of 1SMA4748TR?

    • 1SMA4748TR is commonly used for transient voltage suppression in various electronic circuits, such as in power supplies, industrial equipment, and automotive systems.

  4. What is the breakdown voltage of 1SMA4748TR?

    • The breakdown voltage of 1SMA4748TR is typically 53.3V.

  5. What is the forward voltage drop of 1SMA4748TR at a specified current?

    • The forward voltage drop of 1SMA4748TR is typically 0.9V at a forward current of 10A.

  6. Is 1SMA4748TR suitable for overvoltage protection in automotive electronics?

    • Yes, 1SMA4748TR is suitable for overvoltage protection in automotive electronics due to its high surge capability and fast response time.

  7. Can 1SMA4748TR be used for ESD protection in communication equipment?

    • Yes, 1SMA4748TR can be used for ESD protection in communication equipment to safeguard sensitive components from electrostatic discharge events.

  8. What is the operating temperature range of 1SMA4748TR?

    • The operating temperature range of 1SMA4748TR is -55°C to +150°C, making it suitable for a wide range of environmental conditions.

  9. Does 1SMA4748TR have a low leakage current under normal operating conditions?

    • Yes, 1SMA4748TR exhibits low leakage current, which is beneficial for maintaining system efficiency and reliability.

  10. Are there any specific layout considerations when using 1SMA4748TR in a PCB design?

    • It is recommended to minimize the length of the traces connecting 1SMA4748TR to the circuit to reduce parasitic inductance and optimize transient suppression performance.

I hope these questions and answers provide the information you were looking for! If you have any more questions, feel free to ask.