Obsolete MEMS oscillator — what the ratings mean for a replacement search
Most standard XOs stop at 85°C; the DSC8101AM2-PROGRAMMABLE was specced for avionics, downhole, or engine-bay applications where the ambient hits 105°C and the junction sees the full 125°C.
Supply, stability, and power-down budget
Active current draw is 35 mA max.
Sourcing reality for an obsolete timing part
Because Microchip has discontinued the DSC8101AM2-PROGRAMMABLE, new production buys go through independent surplus and broker channels.