0805L100WR

The "0805L100WR" is a specific component manufactured by Littelfuse Inc., known for its expertise in circuit protection and electronic components. This part is a surface-mount fuse designed to provide overcurrent protection in various electronic applications.

Detailed Description:

1. Form Factor:

   • The "0805" in the part number indicates the package size, which is 0805 inches (2.0 mm x 1.25 mm). This compact size makes it suitable for use in space-constrained applications, such as smartphones, tablets, and other portable devices.

2. Type:

   • This component is a resettable fuse, also known as a polyfuse or PTC (Positive Temperature Coefficient) device. It is designed to protect circuits from overcurrent conditions by increasing its resistance significantly when a certain threshold current is exceeded.

3. Current Rating:

   • The "100" in the part number signifies that the fuse is rated for a hold current of 100 mA. This means that under normal operating conditions, the fuse will allow up to 100 mA of current to pass through without interruption.

4. Voltage Rating:

   • The fuse typically has a voltage rating that allows it to be used in various applications, often around 6V to 32V, making it versatile for different circuit designs.

5. Trip Current:

   • The device is designed to trip (increase resistance) at a specific overcurrent level, which is usually several times the hold current. This characteristic helps to protect sensitive components downstream from damage due to excessive current.

6. Reset Mechanism:

   • One of the key features of the 0805L100WR is its ability to reset automatically once the fault condition is removed and the device cools down. This eliminates the need for manual replacement, making it a cost-effective solution for circuit protection.

7. Temperature Range:

   • The operating temperature range is typically specified, allowing the fuse to function effectively in various environmental conditions. It is often rated for a range from -40°C to +85°C.

8. Applications:

   • This fuse is suitable for a wide range of applications, including consumer electronics, automotive systems, telecommunications, and industrial equipment. It is particularly useful in protecting circuits that are sensitive to overcurrent conditions.

9. Compliance and Standards:

   • Littelfuse products, including the 0805L100WR, are often designed to meet various industry standards and certifications, ensuring reliability and safety in electronic designs.

10. Mounting:

    • As a surface-mount device (SMD), it is designed for automated assembly processes, allowing for efficient production and integration into printed circuit boards (PCBs).

In summary, the Littelfuse 0805L100WR is a compact, reliable, and efficient surface-mount resettable fuse that provides essential overcurrent protection for a variety of electronic applications, ensuring the safety and longevity of the devices it protects.