The DSC6101ME3B-485K000T: It belongs to the DSC61XXB series, which replaces quartz crystal oscillators with a silicon MEMS resonator — no crystal to crack or age under vibration. That means it can sit on an ECU board or a sensor module in the engine bay or cabin without the reliability risk of a quartz can.
For a 485 kHz clock, that jitter budget is tight enough for UART baud-rate generation and CAN node timing without needing an external PLL to clean up the clock. Max supply current is 3 mA typical — this oscillator draws about as much as a low-power LED. In a battery-backed RTC or a sleep-wake timer, that current is negligible against the system's own draw.
Package and enable function — field-swap friendly
That footprint is common across the DSC61XXB series, so a board layout for this part also accepts sibling frequencies without a respin. On a multi-rail board, that saves a load switch and keeps the oscillator powered so it starts fast when re-enabled.