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Microchip Technology DSC1121AI2-029.4912T — Crystals & Oscillators

DSC1121AI2-029.4912T MEMS Oscillator 29.4912 MHz CMOS

MPNDSC1121AI2-029.4912T
Active

Microchip DSC1121 series XO (Standard), 29.4912 MHz, CMOS output, AEC-Q100 qualified, -40°C to +85°C, 2.25V~3.6V supply, 6-SMD No Lead Exposed Pad package

Microchip Technology DSC1121AI2-029.4912T datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1121AI2-029.4912T specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1121
MountingSurface Mount
Voltage2.25V ~ 3.6V
Current - supply35mA
Current - supply (Disable)22mA
Frequency29.4912 MHz
Frequency stability±25ppm
Operating temperature-40°C~85°C
Size (Dimension)0.276\" L x 0.197\" W (7.00mm x 5.00mm)
Height - seated0.035\" (0.90mm)
OutputCMOS
PackageTape & Reel (TR)
RatingsAEC-Q100
FunctionEnable/Disable
Base resonatorMEMS
Case6-SMD, No Lead Exposed Pad

Product details

29.4912 MHz MEMS clock for automotive and industrial timing

The DSC1121AI2-029.4912T is a 29.4912 MHz MEMS-based XO (Standard) from Microchip's DSC1121 series, delivering a CMOS output with enable/disable function. It carries AEC-Q100 qualification — the reliability stress and temperature grade that automotive ECU, ADAS sensor, and infotainment timing chains require, with PPAP documentation available for OEM audits.

Supply voltage flexibility and power budget

Maximum supply current is 35 mA during active operation and 22 mA when the output is disabled — the disable function cuts clock noise during system sleep without removing power.

Sourced through independent distribution; quoted to order against the BOM quantity.

Frequently asked questions

What is the frequency stability of the DSC1121AI2-029.4912T?

±25 ppm across the full temperature range. For a 29.4912 MHz carrier, that is a maximum drift of about ±737 Hz — tight enough for most CAN, Ethernet, and USB clocking applications without external trimming.

What is the difference between the DSC1121 and DSC1122 series?

The DSC1121 series offers standard frequency stability options (±25 ppm, ±50 ppm) with enable/disable function. The DSC1122 series adds a standby mode that drops supply current further, but the base resonator and package footprint are identical — pin-compatible on the same PCB layout.