RL0201E005M500K 0201 PTC Resettable Fuse | 5V 500mA Overcurrent Protection | RUILON

The RL0201E005M500K is an ultra-compact 0201 PTC resettable fuse designed to provide reliable overcurrent and short-circuit protection in modern miniature electronic devices. With a 5V operating voltage and 500mA hold current, it ensures fast response to fault conditions while automatically resetting after the fault is cleared. Its extremely small 0201 footprint is ideal for high-density PCB layouts where space is limited. Engineered for low resistance, stable performance, and long service life, this device is well-suited for consumer electronics, IoT applications, and portable systems requiring efficient and reusable circuit protection.

Key Features

• Ultra-miniature 0201 package for space-constrained PCB designs
• Resettable PTC fuse for overcurrent and short-circuit protection
• 5V operating voltage with 500mA hold current
• Fast trip response with automatic reset capability
• Low resistance to minimize power loss
• Stable and repeatable performance over multiple fault cycles
• High reliability and long operational life
• RoHS compliant and SMT-compatible

Applications

• Overcurrent protection in portable electronics
• Smartphones, tablets, and wearable devices
• 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