Littelfuse Inc.
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RXEF185-2
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RXEF185-2

Product Overview

Category

The RXEF185-2 belongs to the category of resettable fuses.

Use

It is used for overcurrent protection in various electronic circuits and devices.

Characteristics

  • Resettable
  • Low resistance
  • Fast response time

Package

The RXEF185-2 is typically available in a surface mount package.

Essence

This resettable fuse provides reliable overcurrent protection while allowing for easy reset and reuse.

Packaging/Quantity

It is commonly packaged in reels with a quantity varying based on manufacturer specifications.

Specifications

  • Voltage Rating: 60V
  • Current Rating: 1.85A
  • Hold Current: 1.85A
  • Trip Current: 3.7A
  • Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The RXEF185-2 has two pins, typically labeled as "IN" and "OUT". The specific pin configuration may vary based on the manufacturer's datasheet.

Functional Features

  • Overcurrent protection
  • Automatic reset after fault condition removal
  • Low power dissipation

Advantages

  • Reusability
  • Fast response time
  • Compact size

Disadvantages

  • Limited current handling capacity compared to traditional fuses
  • Sensitive to ambient temperature variations

Working Principles

The RXEF185-2 operates based on the principle of positive temperature coefficient (PTC). When an overcurrent condition occurs, the resistance of the PTC material increases, limiting the current flow. Once the fault is removed, the PTC material cools down and resets the fuse for normal operation.

Detailed Application Field Plans

The RXEF185-2 is suitable for a wide range of applications including: - Consumer electronics - Automotive electronics - Industrial control systems - Power supplies - Battery protection circuits

Detailed and Complete Alternative Models

  • Littelfuse 1812L110/24DR
  • Bourns MF-RX185/72-2

In conclusion, the RXEF185-2 resettable fuse offers reliable overcurrent protection with the added benefit of reusability. Its compact size and fast response time make it suitable for various electronic applications, although its current handling capacity and sensitivity to temperature variations should be considered when selecting alternative models.

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Перечислите 10 распространенных вопросов и ответов, связанных с применением RXEF185-2 в технических решениях.

Sure, here are 10 common questions and answers related to the application of RXEF185-2 in technical solutions:

  1. What is the maximum voltage rating of RXEF185-2?

    • The maximum voltage rating of RXEF185-2 is 72V.

  2. What is the hold current of RXEF185-2?

    • The hold current of RXEF185-2 is 1.85A.

  3. What is the maximum interrupt rating of RXEF185-2?

    • The maximum interrupt rating of RXEF185-2 is 50A at 72VDC.

  4. Can RXEF185-2 be used for overcurrent protection in automotive applications?

    • Yes, RXEF185-2 is suitable for overcurrent protection in automotive applications.

  5. What is the operating temperature range of RXEF185-2?

    • The operating temperature range of RXEF185-2 is -40°C to 85°C.

  6. Is RXEF185-2 RoHS compliant?

    • Yes, RXEF185-2 is RoHS compliant.

  7. Can RXEF185-2 be used in battery management systems?

    • Yes, RXEF185-2 can be used in battery management systems for overcurrent protection.

  8. What is the typical resistance of RXEF185-2?

    • The typical resistance of RXEF185-2 is 0.04 ohms.

  9. Is RXEF185-2 suitable for use in telecommunications equipment?

    • Yes, RXEF185-2 is suitable for use in telecommunications equipment for overcurrent protection.

  10. Does RXEF185-2 have agency approvals such as UL or TUV?

    • Yes, RXEF185-2 has UL and TUV agency approvals for safety compliance.