RL0201E009M101K 0201 PTC Resettable Fuse | 9V 100mA Overcurrent Protection | RUILON

The RL0201E009M101K is an ultra-miniature 0201 PTC resettable fuse designed for reliable overcurrent and short-circuit protection in compact electronic circuits. Rated for 9V operation with a 100mA hold current, it provides fast fault response and automatically resets once the fault condition is removed. Its extremely small footprint makes it ideal for high-density PCB layouts where space is critical. Engineered for low resistance, stable performance, and long operational life, this device is widely used in consumer electronics, IoT modules, and portable applications requiring efficient and reusable circuit protection.

Key Features

• Ultra-compact 0201 package for space-constrained PCB designs
• Resettable PTC fuse for overcurrent and short-circuit protection
• 9V operating voltage with 100mA hold current
• Fast trip response with automatic reset capability
• 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 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