RL0402E012M250K 0402 PTC Resettable Fuse | 12V 2.5A Overcurrent Protection | RUILON

The RL0402E012M250K is a compact 0402 PTC resettable fuse engineered for reliable overcurrent and short-circuit protection in modern electronic circuits. With a 12V operating voltage and 2.5A hold current, it delivers fast response to fault conditions and automatically resets once the fault is cleared. Its small 0402 footprint makes it ideal for high-density PCB layouts, offering a practical balance between miniaturization and ease of assembly. Designed for low resistance, stable electrical performance, and long operational life, this device is widely used in consumer electronics, IoT modules, and portable systems requiring efficient and reusable circuit protection.

Key Features

• Compact 0402 package for high-density PCB layouts
• Resettable PTC fuse for overcurrent and short-circuit protection
• 12V operating voltage with 2.5A hold current
• Fast trip response with automatic reset functionality
• Low resistance for minimal power loss
• Stable 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 packs and charging circuits
• Low-voltage power lines and signal circuits
• IoT modules and embedded electronics
• Consumer electronics and smart devices
• PCB-level protection in high-density designs