0451015.MRL

The "0451015.MRL" is a specific model of a fuse manufactured by Littelfuse Inc., a well-known company specializing in circuit protection and electronic components. This particular fuse is designed to provide overcurrent protection in various electrical applications, ensuring the safety and reliability of electronic devices and systems.

Detailed Description:

1. Type and Function:

   • The 0451015.MRL is a resettable fuse, also known as a Polymeric Positive Temperature Coefficient (PPTC) device. It is designed to protect circuits from overcurrent conditions by increasing its resistance significantly when a fault occurs, thereby limiting the current flow.

2. Specifications:

   • Rated Voltage: Typically, this fuse operates at a voltage rating of around 60V, making it suitable for low to medium voltage applications.
   • Hold Current: The hold current rating is approximately 15A, which indicates the maximum continuous current the fuse can handle without tripping.
   • Trip Current: The trip current is usually higher than the hold current, often around 30A, meaning that if the current exceeds this level, the fuse will activate and interrupt the circuit.
   • Resistance: The resistance in the normal state is low, allowing current to flow freely, but it increases significantly when the fuse trips.

3. Physical Characteristics:

   • Package Type: The fuse is typically housed in a compact, surface-mount package, which allows for easy integration into printed circuit boards (PCBs).
   • Dimensions: The dimensions are designed to be small, facilitating space-saving designs in electronic devices.
   • Color and Markings: The fuse may have specific color coding or markings that indicate its ratings and manufacturer details.

4. Applications:

   • The 0451015.MRL is commonly used in consumer electronics, automotive applications, telecommunications, and industrial equipment. It is ideal for protecting circuits in devices such as power supplies, battery packs, and other electronic systems where overcurrent protection is critical.

5. Operating Temperature:

   • The device is designed to operate within a specified temperature range, typically from -40°C to +85°C, ensuring reliability in various environmental conditions.

6. Reset Mechanism:

   • One of the key features of the 0451015.MRL is its resettable nature. After a fault condition is cleared, the fuse can return to its normal state without needing to be replaced, making it a cost-effective solution for circuit protection.

7. Compliance and Standards:

   • The fuse complies with various industry standards and regulations, ensuring it meets safety and performance requirements for electronic components.

In summary, the Littelfuse 0451015.MRL is a reliable and efficient resettable fuse designed for overcurrent protection in a variety of applications, characterized by its compact size, high current ratings, and ability to reset after a fault condition.