RL0201E018M300K 0201 PTC Resettable Fuse | 18V 300mA Overcurrent Protection | RUILON

The RL0201E018M300K is a compact 0201 PTC resettable fuse designed for reliable overcurrent and short-circuit protection in miniature electronic circuits. With an 18V operating voltage and 300mA hold current, it provides fast fault response and automatically resets once the fault condition is removed. Its ultra-small 0201 footprint makes it ideal for high-density PCB layouts in space-constrained designs. Engineered for low resistance, stable performance, and long operational life, this device is well-suited for consumer electronics, IoT modules, and portable systems requiring efficient and reusable circuit protection.

Key Features

• Ultra-miniature 0201 package for high-density PCB layouts
• Resettable PTC fuse for overcurrent and short-circuit protection
• 18V operating voltage with 300mA hold current
• Fast trip response with automatic reset functionality
• Low resistance for minimal power loss
• Stable and repeatable 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 pack and charging circuit protection
• Low-voltage power lines and signal circuits
• IoT modules and embedded systems
• Consumer electronics and smart devices
• PCB-level protection in space-constrained designs