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MICROSMD550LR-2
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MICROSMD550LR-2

Product Overview

The MICROSMD550LR-2 belongs to the category of surface mount resettable fuses. It is designed for use in various electronic circuits to provide overcurrent protection. The characteristics of this product include its small size, high current rating, and resettable functionality. It is typically packaged in tape and reel format and is available in specific quantities per reel.

Specifications

  • Current Rating: 5.5A
  • Voltage Rating: 60V
  • Hold Current: 0.35A
  • Trip Current: 1.1A
  • Max Voltage: 33V
  • Package Type: 1812 (4532 metric)
  • Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The MICROSMD550LR-2 features a standard surface mount package with two terminals for easy integration into circuit boards.

Functional Features

  • Resettable Overcurrent Protection
  • Small Size for Space-Constrained Applications
  • High Current Rating for Robust Protection

Advantages and Disadvantages

Advantages

  • Resettable functionality increases product lifespan
  • Small size allows for use in compact designs
  • High current rating provides robust protection

Disadvantages

  • Limited voltage rating compared to some alternatives
  • Sensitive to temperature extremes

Working Principles

The MICROSMD550LR-2 operates based on the principle of positive temperature coefficient (PTC) behavior. When an overcurrent condition occurs, the device heats up and its resistance increases, limiting the current flow. Once the fault is removed, the device cools down and returns to its low-resistance state.

Detailed Application Field Plans

The MICROSMD550LR-2 is suitable for a wide range of applications including: - Consumer Electronics - Automotive Electronics - Industrial Control Systems - Power Supplies - Battery Management Systems

Detailed and Complete Alternative Models

  • MICROSMD050F-2: 0.05A current rating
  • MICROSMD110F-2: 1.1A current rating
  • MICROSMD250F-2: 2.5A current rating
  • MICROSMD750F-2: 7.5A current rating

In conclusion, the MICROSMD550LR-2 offers reliable overcurrent protection in a compact form factor, making it suitable for a wide range of electronic applications.

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Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi MICROSMD550LR-2 dalam penyelesaian teknikal

  1. What is MICROSMD550LR-2?

    • MICROSMD550LR-2 is a surface mount polymeric positive temperature coefficient (PPTC) device used for overcurrent protection in various electronic circuits.

  2. What are the typical applications of MICROSMD550LR-2?

    • MICROSMD550LR-2 is commonly used in USB ports, battery packs, and other low-voltage electronic circuits to protect against overcurrent conditions.

  3. What is the maximum voltage rating of MICROSMD550LR-2?

    • The maximum voltage rating of MICROSMD550LR-2 is typically 6V.

  4. What is the hold current of MICROSMD550LR-2?

    • The hold current of MICROSMD550LR-2 is typically 5.5A.

  5. How does MICROSMD550LR-2 respond to overcurrent conditions?

    • When an overcurrent condition occurs, MICROSMD550LR-2 quickly increases its resistance, limiting the current flow and protecting the circuit.

  6. Can MICROSMD550LR-2 be used in automotive applications?

    • Yes, MICROSMD550LR-2 can be used in automotive applications where overcurrent protection is required.

  7. What is the operating temperature range of MICROSMD550LR-2?

    • The operating temperature range of MICROSMD550LR-2 is typically -40°C to 85°C.

  8. Is MICROSMD550LR-2 RoHS compliant?

    • Yes, MICROSMD550LR-2 is RoHS compliant, making it suitable for use in environmentally sensitive applications.

  9. Can MICROSMD550LR-2 be soldered onto a PCB?

    • Yes, MICROSMD550LR-2 is designed for surface mount soldering onto printed circuit boards.

  10. Are there any recommended layout considerations when using MICROSMD550LR-2?

    • It is recommended to place MICROSMD550LR-2 close to the protected components and to ensure proper thermal management to optimize its performance.