Standard Frequency, High Temperature Oscillator

The SiT1618B is available in 33 standard frequencies, from 7.3728 MHz to 48 MHz, and two temperature ranges, ext. industrial and automotive. This oscillator features ±20 ppm stability, small 2.0 x 1.6 mm package (4 other packages available), 3.6 mA low power consumption, and best-in-class shock and vibration. 

The SiT1618 is footprint compatible with quartz crystal oscillators, making them ideal replacements for quartz devices without design changes.

For a similar device in a SOT23-5 package, see the SiT2018B oscillator.

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View related products: 1 to 110 MHz | 115 to 137 MHz | Automotive & High Temp lineup

Five industry standard footprints as small as 2016 for all frequencies, voltages, and stabilities
Oscillator Type XO-SE
Frequency 33 standard frequencies
Frequency Stability (ppm) ±20, ±25, ±50
Phase Jitter (rms) 1.3 ps
Output Type LVCMOS
Operating Temperature Range (°C) -40 to +105, -40 to +125
FlexEdgeTM Rise/Fall Time Yes
Voltage Supply (V) 1.8, 2.5 to 3.3
Package Type (mm²) 2.0x1.6, 2.5x2.0, 3.2x2.5, 5.0x3.2, 7.0x5.0
Features Field programmable, High temperature 125°C
Availability Production

±20 ppm over automotive temp. (-40 to 125 °C)

  • Better timing margin ideal for outdoor and high-temp operating environment

Configurable feature sets

  • 33 standard frequencies between 7.3728 MHz and 48 MHz
  • 1.8 V or 2.5 V to 3.3 V supply voltage:
  • Customize specification for optimal system performance
  • Use same base device for many designs reducing qualification needs

0.1 ppb/g low g-sensitivity

  • Improved system performance under vibration
  • Carrier drop-test compliance (STB, etc.)

70 g vibration and 50,000 g shock

  • Best system reliability in harsh environments
  • Fewer product failures

FlexEdge™ drive strength

  • Slower rise/fall time that minimizes EMI from the oscillator
  • Lower cost by driving multiple loads and eliminate additional timing components

5 industry-standard packages

  • 100% drop-in replacement of quartz crystal oscillators

Ultra-fast lead time (4 to 6 weeks)

  • Reduce inventory overhead
  • Mitigate shortage risks


  • Engine & transmission ECUs
  • XTAL replacement
  • ADAS computer
  • Automotive cameras
  • Infotainment