The 1812L110/33MR-A is a surface mount resettable fuse (PPTC) manufactured by Littelfuse Inc. These devices are designed to protect electronic circuits from overcurrent conditions. Unlike traditional fuses that need to be replaced after tripping, resettable fuses automatically reset after the overcurrent condition is removed.

Applications

• USB port protection
• Power supply protection
• General electronic circuit protection
• Overcurrent protection for motors and actuators
• Battery protection in portable devices

Features

• Resettable functionality: Automatically resets after overcurrent condition is removed.
• Surface mount package: Facilitates automated assembly and compact design.
• Fast trip time: Quickly responds to overcurrent events, protecting sensitive components.
• Low resistance: Minimizes power loss during normal operation.
• Compact size: Saves valuable board space.

Benefits

• Reduced downtime: Eliminates the need to replace fuses, minimizing downtime and maintenance costs.
• Improved circuit protection: Provides reliable overcurrent protection, preventing damage to sensitive components.
• Simplified assembly: The surface mount package is compatible with automated assembly equipment, reducing manufacturing costs.
• Enhanced system reliability: Prevents damage from overcurrent events, improving overall system reliability.
• Cost-effective solution: Reduces the cost of fuse replacement and minimizes downtime.

Technical Specifications

The 1812L110/33MR-A is characterized by a hold current (the maximum current the device can carry without tripping), a trip current (the current at which the device will trip), and a maximum voltage rating. The device is housed in a standard 1812 surface mount package. It is crucial to consult the official Littelfuse datasheet for the 1812L110/33MR-A for precise specifications, including hold current, trip current, maximum voltage, trip time, and operating temperature range. The datasheet also provides information on the device's resistance characteristics and derating curves.

In summary, the 1812L110/33MR-A from Littelfuse is a reliable and cost-effective resettable fuse ideal for protecting electronic circuits from overcurrent conditions. Its resettable functionality, fast trip time, and compact size make it a valuable component in modern electronic designs.