The feasibility assessment for substituting the original part number SIT8208AI-G2-33E-62.500000T with SIT8208AI-G2-28E-62.500000Y concludes the following: Both devices are identical in frequency, output type, package dimensions, and functionality. The only distinction lies in the operating voltage: the substitute device operates at 2.8V, while the original is rated for 3.3V. If the target system’s power supply design can support a 2.8V rail, the substitution is fully compatible. Otherwise, direct replacement may result in oscillator malfunction or permanent damage. Therefore, prior to implementation, system power rail voltage compatibility must be verified.