5 MHz MEMS XO with full military temperature range
The DSC1101CM1-005.0000T is a MEMS-based XO (Standard) from Microchip's DSC1101 series, delivering a 5 MHz CMOS output with ±50 ppm frequency stability across -55°C to +125°C — the full military temperature band. This means it keeps a 5 MHz reference within 250 Hz of nominal from a cold-soaked avionics bay to a downhole tool at 125°C, without the warm-up drift of a quartz crystal. The supply voltage range of 2.25V to 3.6V lets it run directly off a 2.5V or 3.3V rail, and the Standby (Power Down) function drops current draw to 95 µA max when the clock is gated — useful for battery-powered systems that sleep between active cycles.
Sourcing and lifecycle for volume orders
The DSC1101 series is a MEMS resonator platform, not a quartz crystal — no mechanical wear-out mechanism, no frequency shift from vibration. The 6-SMD no-lead package (3.20mm x 2.50mm, 0.90mm seated height) is a standard footprint shared across the DSC1101 family, making it a drop-in replacement for other DSC1101 variants at the same frequency.