RT0603BRD07100KL

RT0603BRD07100KL is a 100 kΩ ±0.1% thin-film chip resistor from Yageo in a 0603 (1608 metric) case, documented by Yageo's per-part specification sheet: rated power 0.1 W at 70 °C, temperature coefficient ±25 ppm/°C across −55 °C to +155 °C, maximum continuous working voltage 75 V, overload 150 V and dielectric withstanding voltage 100 V. The B and D fields in the code are the grade: ±0.1% tolerance with the ±25 ppm coefficient — the selection point is a high value at instrumentation accuracy, for precision dividers and reference networks whose ratio must hold across temperature. Working-voltage boundary for this value: at 100 kΩ the power-derived limit (the square root of allowable power x resistance) works out to about 100 V at the 70 °C rating — above the 75 V platform ceiling — so the ceiling is the governing limit; as temperature rises the allowable power derates, and the power limit takes over only once the derated figure falls below the ceiling; the governing limit is always the lower of the two. Selection advice: the same value in Yageo's thick-film RC line is a ±1%/±100 ppm part; where the error budget is the design, the film technology is the specification, so quote the full RT code rather than the value alone.