The RF3327-000 is a resettable fuse, also known as a Polymer Positive Temperature Coefficient (PPTC) device, manufactured by Littelfuse. These devices are designed to protect electronic circuits from overcurrent conditions. Unlike traditional fuses that need to be replaced after tripping, resettable fuses automatically return to their conductive state once the overcurrent condition is removed.

Applications

• USB Ports: Protecting USB ports and connected devices from overcurrent faults.
• Mobile Phones: Protecting internal circuitry and battery packs in mobile phones.
• Laptop Computers: Safeguarding laptop power supplies and internal components.
• Game Consoles: Preventing damage to game consoles due to overcurrent situations.
• General Electronics: Protecting any electronic circuit susceptible to overcurrent events.

Features

• Resettable Functionality: Automatically resets after the fault is cleared, eliminating the need for replacement.
• Solid State Construction: Offers greater reliability and longer life compared to traditional fuses.
• Low Resistance: Minimizes voltage drop and power loss during normal operation.
• Fast Trip Time: Quickly interrupts the circuit in response to an overcurrent condition.
• Compact Size: Allows for easy integration into space-constrained applications.

Benefits

• Enhanced Protection: Provides robust overcurrent protection for sensitive electronic components.
• Reduced Downtime: Eliminates the need to replace fuses, minimizing downtime and maintenance costs.
• Improved Reliability: Solid-state construction offers greater reliability and longer lifespan.
• Cost Savings: Eliminates the recurring cost of replacing traditional fuses.
• Easy Integration: Compact size and surface mount packaging simplify the design and manufacturing process.

Additional Details

The RF3327-000 has a hold current of approximately 0.5A and a trip current around 1A. It has a voltage rating of typically 30V. The operating temperature range is from -40°C to +85°C. The device is typically surface-mount packaged. Refer to the Littelfuse datasheet for precise specifications including trip time curves and resistance values.