The DSC1001BI1-027.0000T is a 27 MHz MEMS-based oscillator (XO) from Microchip's DSC1001 series, delivering a CMOS output from a 4-SMD no-lead package. Its base resonator is MEMS, not quartz — this gives it inherent shock and vibration tolerance that a quartz crystal can't match, which is why it carries AEC-Q100 automotive qualification. Maximum supply current is 7.2 mA, and the standby (power-down) function drops that to 15 µA — useful for modules that need to shut the clock off during sleep to meet quiescent current budgets.
Automotive-grade timing for harsh environments
AEC-Q100 qualification means this oscillator has passed the automotive-grade stress tests: extended temperature cycling, ESD robustness, and reliability screening. That makes it a candidate for under-hood or cabin electronics where a standard commercial oscillator might fail early from thermal or mechanical stress.