The recommended land pattern for the CR0603-FX-1180ELF is a rectangular pad with a size of 0.75 mm x 0.5 mm, with a non-solder mask defined (NSMD) pad shape. This can be found in the Bourns Application Note 104, 'Surface Mount Resistor Land Patterns'.
Bourns recommends following the J-STD-020D standard for soldering and rework of surface mount devices. The recommended soldering temperature is 260°C (500°F) for a maximum of 10 seconds. For rework, use a soldering iron with a temperature of 350°C (662°F) and a dwell time of 3-5 seconds.
The CR0603-FX-1180ELF has an MSL rating of 1, which means it can withstand a maximum of 30 days at 30°C (86°F) and 60% relative humidity without being exposed to moisture-related defects.
While the CR0603-FX-1180ELF is a general-purpose resistor, it is not optimized for high-frequency applications. For frequencies above 100 MHz, Bourns recommends using their high-frequency resistor series, such as the CR0603-FX-HF series.
The expected lifespan of the CR0603-FX-1180ELF is 10 years or more, depending on the operating conditions. Bourns provides a reliability calculation tool on their website to estimate the resistor's lifespan based on factors such as temperature, voltage, and power rating.
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