RL0402E005M015K 0402 PTC Resettable Fuse | 5V 150mA Overcurrent Protection | RUILON

The RL0402E005M015K is a high-performance 0402 PTC resettable fuse designed for reliable overcurrent and short-circuit protection in compact electronic circuits. With a 5V operating voltage and 150mA hold current, it provides rapid response to fault conditions and automatically resets once the fault is cleared. Its small 0402 footprint makes it ideal for high-density PCB layouts while offering easier handling compared to ultra-miniature packages. Engineered for low resistance, stable electrical characteristics, and long service life, this device is widely used in consumer electronics, IoT modules, and portable applications requiring efficient and reusable protection.

Key Features

• Compact 0402 package for space-efficient PCB designs
• Resettable PTC fuse for overcurrent and short-circuit protection
• 5V operating voltage with 150mA hold current
• Fast trip response with automatic reset functionality
• Low resistance for reduced 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 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