Littelfuse 0458002.DR

Littelfuse 0458002.DR Environmental and export classification status description

Littelfuse, Inc. 0458002.DR is a type of resettable fuse (also known as a PolyFuse or PTC or Polymer Positive Temperature Coefficient device) used for circuit protection. It primarily serves to protect electronic circuits from overcurrent conditions, thereby preventing component failure or damage. Functions - Overcurrent Protection: The primary function is to interrupt the circuit when the current exceeds a specific threshold. In normal operation, it allows current to flow but limits the amount when overload conditions occur. - Self-Restoring: Unlike traditional fuses, once the fault is cleared and the device cools down, it automatically resets and allows normal current to pass without requiring replacement. - Compact Design: It comes in a small form factor, making it suitable for use in space-constrained applications. Applications - Consumer Electronics: Used in devices like smartphones, tablets, and wearable technology where circuit protection is critical. - Telecommunications: In communication equipment to prevent damage from overcurrent scenarios. - Automotive and Transportation: Employed in electric vehicles and other automotive electronics to safeguard wiring and components. - Power Supplies: Used in power distribution systems and power adapters for electronic devices. Alternative Parts - Littelfuse 0458003.DR: A similar resettable fuse with a different current rating. - Bourns MF-MSMF: A resettable fuse from another manufacturer offering comparable overcurrent protection features. - SENSIRION STC-W: Offers protection with different characteristics and temperature rates suitable for some applications. Embedded Modules - Littelfuse Fuse Monitors: Some modules integrate resettable fuses along with monitoring systems to provide feedback on the health of circuits. - Temperature Sensors: In combination with fuses to offer both current and temperature protection. - Surge Protective Devices (SPDs): Can be paired with circuit protection to ensure comprehensive safeguarding against high-voltage surges. Related Q&A 1. Q: What is the primary function of the Littelfuse 0458002.DR? - A: The primary function of the Littelfuse 0458002.DR is to provide overcurrent protection by interrupting the circuit when the current exceeds a predefined limit and then automatically resetting when the fault is cleared. 2. Q: In which applications would you typically find the Littelfuse 0458002.DR? - A: The Littelfuse 0458002.DR is commonly found in consumer electronics, telecommunications devices, automotive systems, and power supply applications. 3. Q: How do resettable fuses like the Littelfuse 0458002.DR differ from traditional fuses? - A: Resettable fuses automatically reset after the fault is cleared, while traditional fuses need to be manually replaced once they have blown. 4. Q: Are there alternative parts to the Littelfuse 0458002.DR that could be used? - A: Yes, alternatives include the Littelfuse 0458003.DR, Bourns MF-MSMF, and SENSIRION STC-W, which provide similar overcurrent protection features. 5. Q: Can the Littelfuse 0458002.DR be used in combination with other protective modules? - A: Yes, it can be used alongside temperature sensors and surge protective devices to provide comprehensive circuit protection strategies.