For a new design requiring a 25 MHz MEMS XO with military temperature range, a board spin to a current DSC11xx series part (same 6-SMD footprint) is the practical migration path — confirm the supply voltage and stability grade against the BOM before committing.
Standby function and supply voltage flexibility
Supply voltage spans 2.25 V to 3.6 V, covering 2.5 V and 3.3 V logic rails without an external regulator. The 6-SMD no-lead package (3.20 mm x 2.50 mm, 0.90 mm seated height) is a standard footprint for MEMS oscillators; the pad layout matches the DSC11xx series land pattern.