The recommended land pattern for the CRM1206-JW-220ELF is a rectangular pad with a size of 1.5 mm x 0.8 mm, with a non-solder mask defined (NSMD) pad shape. This is to ensure proper soldering and to prevent solder bridging.
While the CRM1206-JW-220ELF is a general-purpose chip resistor, it is not recommended for high-frequency applications above 100 MHz due to its internal construction and materials. For high-frequency applications, consider using a resistor specifically designed for high-frequency use, such as those with a thin-film or metal foil construction.
The CRM1206-JW-220ELF has a power rating of 0.25 W at 70°C. To ensure reliable operation, you should derate the power rating based on the ambient temperature. For example, at 85°C, the power rating is reduced to 0.15 W. You can use the derating curve provided in the datasheet to determine the maximum power rating at your specific operating temperature.
The CRM1206-JW-220ELF is not AEC-Q200 qualified, which is a common requirement for automotive applications. If you need a resistor for an automotive application, consider using a resistor that meets the AEC-Q200 standard, such as the Bourns CRA series.
The CRM1206-JW-220ELF has a moisture sensitivity level (MSL) of 2, which means it can withstand some humidity but not immersion in water. If you need a resistor for a humid or wet environment, consider using a resistor with a higher MSL rating or a conformal coating to protect against moisture.
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CRM1206-JW-220ELF Overview
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