The SMD1812P110TE/16-1.1A from Littelfuse is a PolySwitch resettable fuse designed for surface mounting. It provides overcurrent protection for a wide range of electronic equipment. This device offers a compact footprint while delivering reliable circuit protection against faults.

Applications

• USB Power Protection: Used to protect USB ports from overcurrent conditions.
• HDMI Port Protection: Employed to safeguard HDMI ports in TVs, monitors, and other display devices.
• Power Supply Protection: Protects power supplies from overcurrent events and short circuits.
• General Electronic Equipment: Applied in various electronic devices requiring overcurrent protection.

Features

• Surface Mount Device (SMD): Designed for easy and cost-effective surface mount assembly.
• Resettable Fuse: Automatically resets after the fault condition is removed, eliminating the need for fuse replacement.
• Compact Size: The 1812 form factor offers a small footprint for space-constrained applications.
• Fast Trip Time: Quickly interrupts the circuit during an overcurrent event, minimizing damage to sensitive components.
• Agency Approvals: Complies with industry standards and safety regulations, ensuring product reliability.

Benefits

• Enhanced Circuit Protection: Provides robust overcurrent protection, preventing damage to electronic components.
• Reduced Downtime: Automatically resets after a fault, minimizing equipment downtime and maintenance costs.
• Space Savings: Compact size allows for integration into densely populated circuit boards.
• Improved Reliability: Resettable functionality enhances the overall reliability and lifespan of electronic devices.
• Cost-Effective Solution: Eliminates the need for fuse replacement, reducing long-term operating costs.

Additional Details

The SMD1812P110TE/16-1.1A has a hold current of 1.1A and a trip current higher than that. It is designed to operate within a specified temperature range. The 1812 indicates the physical dimensions of the device in mils (180 mils x 120 mils). The “P” denotes it is a polymeric positive temperature coefficient (PPTC) resettable fuse. The device’s construction and materials are selected to provide reliable and consistent performance over its operating life. It is RoHS compliant, ensuring environmental friendliness.