The MF-SM100/33 is a resettable fuse, also known as a polymeric positive temperature coefficient (PPTC) device, manufactured by Bourns Inc. It is designed to protect electronic circuits from overcurrent conditions. This device offers a reliable and efficient way to safeguard sensitive components against damage caused by excessive current flow.

Applications

• USB Port Protection: Commonly used to protect USB ports in computers, peripherals, and other electronic devices.
• HDMI Port Protection: Protects HDMI ports from overcurrent events, ensuring the reliable operation of multimedia devices.
• General Electronic Equipment: Used in a variety of electronic devices to prevent damage from overcurrent faults.
• Power Supply Protection: Protects power supplies from overload conditions, preventing damage to connected devices.
• Battery Protection: Used in battery packs to protect against overcurrent during charging and discharging.

Features

• Resettable: Unlike traditional fuses, PPTC devices reset automatically after the fault condition is removed, eliminating the need for replacement.
• Low Resistance: Offers low resistance during normal operation, minimizing power loss.
• Fast Trip Time: Responds quickly to overcurrent conditions, providing rapid protection.
• Compact Size: Small form factor allows for easy integration into various electronic designs.
• RoHS Compliant: Complies with RoHS directives, ensuring environmental safety.

Benefits

• Enhanced Circuit Protection: Provides reliable overcurrent protection, preventing damage to sensitive electronic components.
• Reduced Downtime: Automatic resetting capability minimizes downtime and maintenance requirements.
• Improved Product Reliability: Protects against electrical faults, increasing the overall reliability and lifespan of electronic devices.
• Cost-Effective: Eliminates the need for fuse replacement, reducing long-term operating costs.
• Ease of Use: Simple integration into existing circuit designs.

Additional Details

The MF-SM100/33 has a hold current (Ih) of 1.0A and a trip current (It) of 2.0A. Its maximum voltage rating is 33V. The device operates within a temperature range of -40°C to +85°C. It is available in a surface mount package, making it suitable for automated assembly processes. The specific trip time depends on the magnitude of the overcurrent. This component is ideal for applications requiring repetitive overcurrent protection without manual intervention.