1. XLL326125.000000I Substitution Conclusion The XLL326125.000000I can serve as a complete drop-in replacement for the original part 633V12505I2T, with excellent electrical and physical compatibility and a notable advantage in lower power consumption. Both devices are identical in all key specifications: frequency (125 MHz), output type (LVDS), supply voltage (2.5 V), frequency stability (±25 ppm), package size (6-SMD), and functionality (enable/disable). The primary difference lies in the maximum operating current: the original part draws 66 mA, whereas the XLL326125.000000I requires only 34 mA. This represents an approximate 48% reduction in power consumption, which improves overall system efficiency, reduces thermal dissipation, and offers distinct benefits in battery-powered or thermally constrained applications. Provided there are no specific timing or start-up characteristic requirements, this substitution can be implemented directly.