Littelfuse Inc.
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RXEF185-1
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RXEF185-1

Product Overview

Category: Electronic Component
Use: Overcurrent Protection
Characteristics: Fast-acting, Surface Mount Device (SMD)
Package: Radial Leaded
Essence: Fuse for overcurrent protection
Packaging/Quantity: Tape and Reel, 1000 pieces per reel

Specifications

  • Rated Current: 1.85A
  • Rated Voltage: 72V DC
  • Breaking Capacity: 50A
  • Operating Temperature Range: -40°C to 85°C
  • Dimensions: 3.2mm x 1.6mm x 1.6mm

Detailed Pin Configuration

The RXEF185-1 has two radial leads for easy surface mount installation.

Functional Features

  • Fast-acting response to overcurrent conditions
  • Reliable overcurrent protection for electronic circuits
  • Compact design for space-constrained applications

Advantages and Disadvantages

Advantages: - Fast-acting response helps prevent damage to sensitive electronic components - Small size allows for use in compact designs

Disadvantages: - Limited breaking capacity compared to larger fuses - SMD package may require specialized equipment for installation

Working Principles

The RXEF185-1 operates based on the principle of thermal protection. When an overcurrent condition occurs, the fuse element heats up and quickly melts, interrupting the circuit and preventing damage to downstream components.

Detailed Application Field Plans

The RXEF185-1 is commonly used in various electronic devices and systems, including: - Power supplies - Battery management systems - LED lighting - Consumer electronics

Detailed and Complete Alternative Models

  • Littelfuse 045101.5MRL
  • Bourns MF-RX185/72-2

In conclusion, the RXEF185-1 is a fast-acting, surface mount fuse designed for reliable overcurrent protection in electronic circuits. Its compact size and efficient operation make it suitable for a wide range of applications, providing essential protection for sensitive electronic components.

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技術ソリューションにおける RXEF185-1 の適用に関連する 10 件の一般的な質問と回答をリストします。

  1. What is RXEF185-1?

    • RXEF185-1 is a resettable polymeric positive temperature coefficient (PPTC) device used as a circuit protection component.

  2. What are the typical applications of RXEF185-1?

    • RXEF185-1 is commonly used in overcurrent and overtemperature protection in various electronic devices, such as power supplies, battery packs, and automotive electronics.

  3. What is the operating voltage of RXEF185-1?

    • The operating voltage of RXEF185-1 is typically rated at 60V DC.

  4. What is the hold current of RXEF185-1?

    • The hold current of RXEF185-1 is typically 1.85A.

  5. How does RXEF185-1 work?

    • RXEF185-1 works by increasing its resistance when the current flowing through it exceeds the specified threshold, effectively limiting the current to protect the circuit.

  6. Is RXEF185-1 reusable after tripping?

    • Yes, RXEF185-1 is a resettable device, meaning it returns to a low-resistance state once the fault condition is removed.

  7. What is the maximum ambient operating temperature for RXEF185-1?

    • The maximum ambient operating temperature for RXEF185-1 is typically 85°C.

  8. Can RXEF185-1 be used in automotive applications?

    • Yes, RXEF185-1 is suitable for use in automotive electronics due to its ability to provide overcurrent protection.

  9. Does RXEF185-1 require any special handling during assembly?

    • RXEF185-1 should be handled with standard ESD precautions during assembly to prevent damage to the device.

  10. Where can I find detailed specifications for RXEF185-1?

    • Detailed specifications for RXEF185-1 can be found in the product datasheet provided by the manufacturer or distributor.