The recommended land pattern for the RCWE0603R680FKEA is a rectangular pad with a size of 0.6 mm x 0.3 mm, with a non-solder mask defined (NSMD) pad shape. This can be found in the Vishay Intertechnologies' Resistors Division Land Pattern Recommendation document.
The RCWE0603R680FKEA has a power rating of 0.1 W at 70°C. To handle thermal derating, you should ensure that the resistor is operated within its specified power rating and ambient temperature range. You can use the derating curve provided in the datasheet to determine the maximum power rating at a given temperature.
The RCWE0603R680FKEA is a general-purpose thick-film resistor, and its frequency response is not specified in the datasheet. While it may work in some high-frequency applications, it's not recommended for high-frequency or high-power RF applications. For such applications, consider using a thin-film or wirewound resistor specifically designed for high-frequency use.
The RCWE0603R680FKEA is a surface-mount device and can be used in environments with moderate vibration. However, it's essential to ensure that the resistor is properly soldered and the PCB is designed to withstand the expected vibration levels. For extreme vibration environments, consider using a resistor with a more robust construction, such as a wirewound or metal film resistor.
The RCWE0603R680FKEA has a tolerance of ±1% and a temperature coefficient of ±100 ppm/°C. These values are specified in the datasheet and are typical for this type of resistor. The tolerance indicates the maximum deviation from the nominal resistance value, while the temperature coefficient indicates the change in resistance per degree Celsius.
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