MEMS oscillator with military temperature range
The DSC1101CM5-050.0000 is a 50 MHz MEMS-based XO (Standard) from Microchip's DSC1101 series, delivering CMOS output with ±10 ppm frequency stability across the full -55°C to 125°C military temperature range — a fit for avionics, satellite, and downhole instrumentation where quartz oscillators struggle with shock and temperature slew. Supply voltage spans 2.25V to 3.6V, making it compatible with both 2.5V and 3.3V logic rails without an external regulator.
For new designs or volume production, a pin-compatible alternative within the DSC1101 family may be available — confirm the exact frequency, stability, and temperature grade with the factory or an authorized distributor before committing the BOM.
6-SMD no-lead footprint and supply range
Housed in a 6-SMD, No Lead package measuring 3.20 mm x 2.50 mm with a seated height of 0.90 mm. The compact footprint suits space-constrained PCB layouts; the no-lead construction reduces parasitic inductance at 50 MHz compared to a through-hole can.