The SMD1812P200TFT from Littelfuse is a PolySwitch resettable fuse designed for surface mount applications. It offers overcurrent protection in a compact package, helping to prevent damage to electronic circuits from excessive current. Its resettable functionality is a key advantage, eliminating the need for manual fuse replacement after a fault event.

Applications

• Network Interface Cards (NICs): Protection for network card circuitry.
• Security Cameras: Overcurrent protection for security camera systems.
• Industrial Sensors: Safeguards sensitive industrial sensors from electrical faults.
• Robotics: Protects robotic control systems and components.

Features

• Surface Mount Device (SMD): Designed for automated assembly processes.
• Resettable Fuse: Automatically resets after the overcurrent condition is removed.
• Compact 1812 Package: Offers a small footprint for space-constrained applications.
• Fast Trip Time: Quickly interrupts the circuit during an overcurrent event.
• RoHS Compliant: Meets environmental regulations.

Benefits

• Enhanced Circuit Protection: Prevents damage to sensitive electronic components.
• Reduced Downtime: Automatically resets, minimizing equipment downtime and maintenance costs.
• Space-Saving Design: Allows for integration into densely populated circuit boards.
• Improved Reliability: Resettable functionality enhances overall system reliability.
• Cost-Effective Solution: Eliminates the need for fuse replacement.

Additional Details

The SMD1812P200TFT is a PPTC (Polymeric Positive Temperature Coefficient) resettable fuse. The 1812 package indicates the physical dimensions of the device. The 'P200' relates to its electrical characteristics, with '200' possibly indicating a hold current or other performance parameter. The 'TFT' likely denotes a specific trip force or other performance characteristic. It is vital to consult the Littelfuse datasheet for complete specifications and application guidelines, including hold current, trip current, voltage rating, and operating temperature range.