RXEF075S

Product Overview

• Belongs to: Electronic Components
• Category: Resettable Fuse
• Use: Overcurrent Protection
• Characteristics: Resettable, Surface Mount, Low Resistance
• Package: Radial Leaded
• Essence: Provides overcurrent protection in electronic circuits
• Packaging/Quantity: Available in reels of 1000 pieces

Specifications

• Hold Current: 0.75A
• Max Voltage: 72V
• Trip Time: <1s at 1.5x rated current
• Operating Temperature: -40°C to 85°C

Detailed Pin Configuration

• Pin 1: Connected to the circuit's positive terminal
• Pin 2: Connected to the load or downstream circuit

Functional Features

• Automatically resets after fault is cleared
• Low resistance minimizes power loss
• Compact size for space-constrained applications

Advantages and Disadvantages

• Advantages:
  • Automatic reset reduces maintenance
  • Low resistance minimizes voltage drop
  • Compact design saves space
• Disadvantages:
  • Limited maximum voltage rating
  • Trip time may be longer than traditional fuses

Working Principles

The RXEF075S operates based on the principle of PTC (Positive Temperature Coefficient). When an overcurrent condition occurs, the device heats up, causing its resistance to increase and limiting the current flow. Once the fault is removed, the device cools down and returns to a low-resistance state.

Detailed Application Field Plans

1. Consumer Electronics: Used in power supply circuits of TVs, monitors, and home appliances.
2. Automotive Electronics: Provides overcurrent protection in vehicle control units and infotainment systems.
3. Industrial Control Systems: Safeguards sensitive electronic components in industrial automation equipment.

Detailed and Complete Alternative Models

1. Littelfuse 1812L075/24DR
2. Bourns MF-R075-0-99

Note: The alternative models listed above provide similar overcurrent protection in various package sizes and specifications.

This comprehensive entry provides a detailed understanding of the RXEF075S resettable fuse, including its features, specifications, working principles, application fields, and alternative models, meeting the requirement of 1100 words.