Original Part
62.5 MHz XO (Standard) LVCMOS, LVTTL Oscillator 2.5V Enable/Disable 4-SMD, No Lead
Alternative Part
62.5 MHz XO (Standard) LVCMOS, LVTTL Oscillator 1.8V Enable/Disable 4-SMD, No Lead
62.5 MHz XO (Standard) LVCMOS, LVTTL Oscillator 1.8V Enable/Disable 4-SMD, No Lead
1. SIT8208AI-G2-18E-62.500000X Substitution Conclusion
This part cannot directly replace the original model (SIT8208AI-G2-25E-62.500000X). The primary difference is the supply voltage, which has been reduced from 2.5V in the original to 1.8V. This voltage mismatch may result in incompatible output levels with downstream circuitry, potentially causing logic recognition errors or signal integrity risks. Although both devices share identical frequency, stability, package, and enable functions, and the lower operating current (31mA vs. 33mA) offers a slight power consumption benefit, the voltage change is a critical electrical parameter modification. Substitution requires verifying that all associated components in the system are compatible with 1.8V LVCMOS/LVTTL levels. Otherwise, a redesign of the power supply and signal interface circuitry is necessary.
2. SIT8208AI-G2-18E-62.500000Y Substitution Conclusion
This model is also not a direct drop-in replacement for the original. Its technical parameters are identical to the X-suffix model described above (both utilize a 1.8V supply). The difference lies solely in the manufacturer's internal coding suffix, which likely indicates a production batch or minor test standard adjustment. Consequently, the substitution feasibility conclusion is the same: voltage incompatibility remains the fundamental constraint, and system-level voltage compatibility must be assessed. If the existing circuit already supports 1.8V logic levels, both variants could serve as lower-power alternatives. However, it is critical to note that the original 2.5V power rail must be redesigned; otherwise, the device may fail to operate correctly or could be damaged.
Analysis ID: C6B4-28C7000
Based on part parameters and for reference only. Not to be used for procurement or production.
SkyChip © 2026, Email: sales@skychip.com