RC0402FR-0749R9L

The RC0402FR-0749R9L is a surface-mount resistor manufactured by Yageo, a well-known company in the electronic components industry. This specific resistor is part of the RC series, which is recognized for its reliability and precision in various electronic applications.

Key Specifications:

1. Resistance Value: The RC0402FR-0749R9L has a resistance of 49.9 ohms. This value is critical for applications requiring precise current limiting or voltage division.

2. Package Size: It is housed in a 0402 package, which measures approximately 1.0 mm x 0.5 mm (or 0402 inches). This small size makes it suitable for compact circuit designs, such as those found in mobile devices, wearables, and other miniaturized electronics.

3. Tolerance: The resistor has a tolerance of ±1%, indicating that the actual resistance can vary by this percentage from the nominal value. This level of tolerance is suitable for many general-purpose applications.

4. Power Rating: The RC0402FR-0749R9L is rated for a power dissipation of 1/16 watt (0.0625 watts). This rating is important for ensuring that the resistor can handle the power without overheating.

5. Temperature Coefficient: The temperature coefficient is typically around 100 ppm/°C, which means that the resistance value will change by 100 parts per million for each degree Celsius change in temperature. This characteristic is essential for maintaining performance in varying environmental conditions.

6. Construction: The resistor is constructed using a thin-film technology, which provides excellent stability and low noise. This construction method contributes to the resistor's overall performance and reliability.

7. Applications: The RC0402FR-0749R9L is suitable for a wide range of applications, including consumer electronics, telecommunications, automotive electronics, and industrial equipment. Its small size and precise specifications make it ideal for use in high-density circuit boards.

8. Compliance and Standards: Yageo's resistors typically comply with various industry standards, ensuring quality and reliability. This includes RoHS compliance, indicating that the product is free from hazardous substances.

Summary:

In summary, the RC0402FR-0749R9L from Yageo is a high-quality, surface-mount resistor with a resistance of 49.9 ohms, housed in a compact 0402 package. With a tolerance of ±1% and a power rating of 1/16 watt, it is designed for precision applications in a variety of electronic devices. Its thin-film construction and favorable temperature coefficient make it a reliable choice for engineers and designers looking for performance and stability in their circuits.