1812L110/33MR

The 1812L110/33MR is a specific type of fuse manufactured by Littelfuse Inc., designed for overcurrent protection in electronic circuits. Here’s a detailed description of its features and specifications:

Physical Characteristics:

• Package Type: The fuse is housed in a compact 1812 (metric 4532) surface-mount package, which measures approximately 4.5 mm x 3.2 mm x 1.1 mm. This size makes it suitable for applications where space is a premium.
• Material: The fuse body is typically made from a ceramic or glass material, providing durability and resistance to environmental factors.
• Terminals: It features flat terminals that allow for easy soldering onto printed circuit boards (PCBs).

Electrical Specifications:

• Rated Current: The 1812L110/33MR is rated for a nominal current of 110 mA, which means it can safely carry this amount of current under normal operating conditions.
• Voltage Rating: It has a maximum voltage rating of 33V, making it suitable for low-voltage applications.
• Breaking Capacity: The fuse is designed to interrupt high fault currents, ensuring that it can protect sensitive components from damage during overcurrent conditions.

Performance Characteristics:

• Time-Current Characteristics: The fuse exhibits a fast-acting response, meaning it will quickly blow when the current exceeds its rated value, providing immediate protection to the circuit.
• Temperature Range: It operates effectively within a specified temperature range, typically from -55°C to +125°C, allowing it to function in various environmental conditions.

Applications:

• The 1812L110/33MR is commonly used in consumer electronics, telecommunications, automotive applications, and other electronic devices where overcurrent protection is essential.
• It is particularly useful in circuits with sensitive components that could be damaged by excessive current.

Compliance and Standards:

• The fuse complies with various industry standards, ensuring reliability and safety in its applications. It may meet certifications such as UL, CSA, or IEC, depending on the specific model and its intended use.

Conclusion:

The 1812L110/33MR from Littelfuse Inc. is a reliable and efficient surface-mount fuse that provides essential overcurrent protection in compact electronic designs. Its fast-acting characteristics and robust construction make it an ideal choice for a wide range of applications, ensuring the safety and longevity of electronic devices.