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119 to 137 MHz, Wide Temperature (-55 to +125°C) SOT23 Oscillator
LoginThe SiT2021B oscillator comes in a SOT23 package for the best board-level solder joint reliability and low-cost, optical-ONLY board-level inspection. This device features a wide frequency range, excellent stability, and the shortest lead time for industrial, medical, automotive, avionics, and other high-temperature applications. This device also features the industry's best 0.1 ppb/g vibration sensitivity, 50,000 g shock and 70 g vibration resistance.
For the same device in SMD packages, refer to the SiT8921B oscillator.
Program oscillators to get instant samples, optimized performance, and fast prototyping | Learn More
View related products: 1 to 110 MHz | QFN package | Automotive | Automotive & High Temp lineup

"Specs" | "Value" |
---|---|
Oscillator Type | XO-SE |
Frequency | 119 to 137 MHz |
Frequency Stability (ppm) | ±20, ±25, ±50 |
Phase Jitter (rms) | 1.3 ps |
Output Type | LVCMOS |
Operating Temperature Range (°C) | -55 to +125 |
FlexEdgeTM Rise/Fall Time | Yes |
Voltage Supply (V) | 1.8, 2.5 to 3.3 |
Package Type (mm²) | SOT23 (2.9x2.8) |
Features | Field programmable, Military temperature -55 to 125°C, SOT23-5 |
Availability | Production |
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Image: SiT2021b SOT-23 5-pin package, top
Unique combination of
- 119 to 137 MHz
- ±20 ppm
- -55 °C to 125 °C operating temperature:
- Best-in-class stability over extreme temperature range for outdoor applications
0.1 ppb/g low g-sensitivity
- No degradation of performance in harsh operating environments
70 g vibration and 50,000 g shock
- Indestructible
FlexEdge™ rise/fall time
- Optimize EMI to reduce interference to other subsystems
SOT23-5 package
- Best board-level solder joint reliability
- Easy, low-cost, optical-only, board-level inspection of solder joints
Ultra-fast lead time (4 to 6 weeks)
- Reduce inventory overhead
- Mitigate shortage risks
- Oil exploration drilling
- Power amplifiers
- Industrial motors
- Pressure meters
- Aerospace equipment
- Radar
- Avionics
Evaluation Board (Contact SiTime) – SiT6907 (2928 SOT23-5)
Time Machine II Programmer – Program frequency, voltage, stability & more
Frequency Slope (dF/dT) Calculator – Calculate frequency slope over temperature
Reliability Calculator – Get FIT/MTBF data for various operating conditions
SOT 23 5-Pins 3D Step Model – Preview oscillator packages in 3D