The RUILON SMD2018 Series Positive Thermal Coefficient (PTC) resettable fuses are high-performance overcurrent protection components designed for advanced electronic circuits requiring reliable self-resetting safety protection. These devices increase resistance rapidly under fault conditions, effectively limiting excessive current and protecting downstream components.

With a compact 2018 SMD footprint and stable trip characteristics, the SMD2018 series ensures consistent protection performance, low power loss during normal operation, and automatic recovery once the fault condition is removed.

🔹 Key Features

• Self-resetting overcurrent protection (PTC technology)
• Fast response to short circuit and overload conditions
• Compact 2018 SMD package for PCB space saving
• Stable trip current and reliable performance
• Low resistance during normal operation
• Automatic recovery after fault removal
• High endurance for repetitive surge events

🔹 Applications

• USB power and charging protection
• Battery packs and BMS systems
• Consumer electronics and smart devices
• Industrial control circuits
• Communication and networking equipment
• Automotive electronic modules
• PCB-level overcurrent protection