Littelfuse Inc.
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RXEF020-AP
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RXEF020-AP

Product Overview

RXEF020-AP is a resettable polymeric positive temperature coefficient (PPTC) device designed for overcurrent protection in various electronic circuits. This device offers reliable protection and is widely used in consumer electronics, automotive applications, and industrial equipment.

Basic Information

  • Category: Resettable PPTC Device
  • Use: Overcurrent Protection
  • Characteristics: Resettable, Reliable, Compact
  • Package: Surface Mount
  • Essence: Provides overcurrent protection by limiting the current flow in the circuit
  • Packaging/Quantity: Available in reels of 3000 units

Specifications

  • Hold Current: 0.2A
  • Trip Current: 0.4A
  • Voltage Rating: 60V
  • Operating Temperature Range: -40°C to 85°C
  • Dimensions: 3.5mm x 2.1mm x 1.35mm

Detailed Pin Configuration

The RXEF020-AP features two terminals for surface mount installation. The detailed pin configuration is as follows: - Pin 1: Input Terminal - Pin 2: Output Terminal

Functional Features

  • Resettable: Automatically resets once the fault condition is removed
  • Reliable Protection: Provides effective overcurrent protection for sensitive electronic components
  • Compact Design: Space-saving surface mount package

Advantages and Disadvantages

Advantages

  • Resettable design allows for multiple uses
  • Reliable protection against overcurrent conditions
  • Compact size ideal for space-constrained applications

Disadvantages

  • Limited to specific hold and trip current ratings
  • May not be suitable for high-power applications

Working Principles

When an overcurrent condition occurs, the resistance of the RXEF020-AP increases, limiting the current flow through the circuit. Once the fault is removed, the device resets to its initial low-resistance state, allowing normal operation to resume.

Detailed Application Field Plans

The RXEF020-AP is suitable for a wide range of applications, including: - Consumer Electronics: Protection of battery charging circuits, USB ports, and audio systems - Automotive Electronics: Overcurrent protection in control modules, lighting systems, and infotainment systems - Industrial Equipment: Safeguarding sensors, actuators, and control circuits in automation systems

Detailed and Complete Alternative Models

  • RXEF010-AP: Lower hold and trip current ratings for more sensitive applications
  • RXEF030-AP: Higher hold and trip current ratings for increased overcurrent protection

In conclusion, the RXEF020-AP resettable PPTC device offers reliable overcurrent protection with its compact design and resettable functionality. Its application spans across various industries, making it a versatile choice for circuit protection needs.

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Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af RXEF020-AP i tekniske løsninger

Sure, here are 10 common questions and answers related to the application of RXEF020-AP in technical solutions:

  1. Q: What is the maximum voltage rating of RXEF020-AP? A: The maximum voltage rating of RXEF020-AP is 60V.

  2. Q: What is the hold current of RXEF020-AP? A: The hold current of RXEF020-AP is 200mA.

  3. Q: Can RXEF020-AP be used for overcurrent protection in automotive applications? A: Yes, RXEF020-AP is suitable for overcurrent protection in automotive applications.

  4. Q: What is the operating temperature range of RXEF020-AP? A: The operating temperature range of RXEF020-AP is -40°C to 85°C.

  5. Q: Is RXEF020-AP RoHS compliant? A: Yes, RXEF020-AP is RoHS compliant.

  6. Q: Can RXEF020-AP be used in battery protection circuits? A: Yes, RXEF020-AP can be used in battery protection circuits.

  7. Q: What is the typical tripping time of RXEF020-AP under overload conditions? A: The typical tripping time of RXEF020-AP under overload conditions is 5 seconds.

  8. Q: Does RXEF020-AP have a resettable function after tripping? A: No, RXEF020-AP is a non-resettable fuse.

  9. Q: Can RXEF020-AP be soldered onto a PCB? A: Yes, RXEF020-AP is designed for surface mount soldering onto PCBs.

  10. Q: What is the typical resistance of RXEF020-AP in its tripped state? A: The typical resistance of RXEF020-AP in its tripped state is less than 0.1 ohms.