RL0402E005M005K 0402 PTC Resettable Fuse | 5V 50mA Overcurrent Protection | RUILON

The RL0402E005M005K is a compact 0402 PTC resettable fuse designed to provide reliable overcurrent and short-circuit protection in small electronic circuits. With a 5V operating voltage and 50mA hold current, it offers fast fault response and automatic reset once the fault condition is cleared. Its 0402 package provides a balance between miniaturization and handling convenience, making it suitable for high-density PCB layouts. Engineered for low resistance, stable electrical performance, and long service life, this device is ideal for consumer electronics, IoT modules, and portable applications requiring dependable and reusable circuit protection.

Key Features

• Compact 0402 package for efficient PCB space utilization
• Resettable PTC fuse for overcurrent and short-circuit protection
• 5V operating voltage with 50mA hold current
• Fast trip response with automatic reset capability
• Low resistance for minimal power loss
• Stable performance across multiple reset cycles
• High reliability and long operational life
• RoHS compliant and SMT-compatible

Applications

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