RL0402E005M500K 0402 PTC Resettable Fuse | 5V 5A Overcurrent Protection | RUILON

The RL0402E005M500K is a compact 0402 PTC resettable fuse designed for reliable overcurrent and short-circuit protection in modern electronic circuits. With a 5V operating voltage and 5A hold current, it provides fast response to fault conditions and automatically resets once the fault is cleared. Its small 0402 footprint enables efficient use of PCB space while maintaining ease of assembly in high-density designs. Engineered for low resistance, stable performance, and long operational life, this device is ideal for consumer electronics, IoT modules, and portable systems requiring efficient and reusable circuit protection.

Key Features

• Compact 0402 package for high-density PCB layouts
• Resettable PTC fuse for overcurrent and short-circuit protection
• 5V operating voltage with 5A hold current
• Fast trip response with automatic reset functionality
• Low resistance for minimal power loss
• Stable performance across multiple reset cycles
• High reliability and long service life
• RoHS compliant and SMT-compatible

Applications

• Overcurrent protection in compact electronic devices
• Smartphones, tablets, and wearable electronics
• Battery packs and charging circuits
• USB power lines and low-voltage systems
• IoT modules and embedded electronics
• Consumer electronics and smart devices
• PCB-level protection in high-density designs