XO5083-114R

Overview

The MtronPTI XO5083-114R is a surface-mount Oven Controlled Crystal Oscillator (OCXO) designed for high-stability frequency reference applications. It operates at a nominal frequency of 10 MHz and utilizes an SC-cut crystal resonator to ensure superior long-term stability and low aging characteristics compared to AT-cut alternatives. The device provides a sine wave output with a typical power level of +3 dBm, suitable for direct coupling into mixers or phase-locked loops without additional amplification stages. It requires a 12V DC supply voltage and features external voltage-controlled frequency adjustment capability. The component is housed in a standard 1x1 inch (25.4 x 25.4 mm) SMT package, offering a compact footprint for space-constrained designs while maintaining the thermal performance inherent to oven-controlled technology.

Feature Summary

• SC-cut crystal configuration ensures optimal temperature coefficient and minimal long-term aging drift
• Integrated heating oven maintains constant crystal temperature for consistent frequency stability across wide environmental ranges
• +3 dBm sine wave output eliminates need for external buffering amplifiers in RF signal chains
• Surface mount construction reduces board area requirements by approximately 50% compared to traditional through-hole OCXOs

Applications

• Local oscillator source for short-range microwave radio communication systems
• Frequency synchronization reference for small base station infrastructure
• High-precision frequency benchmark for portable test and measurement instruments
• Stable clock generation for digital logic synchronization requiring low jitter

Procurement Notes

Verify the specific suffix code against the official MtronPTI datasheet to confirm the exact output waveform and crystal cut type. Ensure the design schematic accounts for the 12V supply requirement and includes appropriate decoupling capacitors near the power pin. Confirm that the PCB footprint matches the specified 1x1 inch dimensions and that thermal vias are utilized on the ground pin for adequate heat dissipation. Cross-reference the part number with authorized distributors to avoid counterfeit components.

Selection Notes

Select this model when long-term frequency stability and low aging are critical priorities over initial cost. The SC-cut variant offers significantly better aging performance than AT-cut options, making it suitable for applications requiring infrequent recalibration. Consider the 12V supply requirement and potential power consumption implications for battery-operated devices. Evaluate the +3 dBm output power against the input sensitivity of downstream components to ensure proper signal levels without excessive loading.

Part Context

The XO5083 series represents MtronPTI's line of compact surface-mount OCXOs, bridging the gap between bulkier through-hole units and less stable TCXOs. This series is engineered for environments where size constraints prohibit traditional OCXOs but stability requirements exceed TCXO capabilities. The 1-inch form factor allows for integration into dense PCB layouts while retaining the thermal isolation benefits of an ovenized crystal environment.

Replacement Considerations

Direct replacements must match the 10 MHz frequency, 12V supply, and SMT 1x1 inch package. Verify that substitute parts offer comparable SC-cut stability and +3 dBm sine wave output. Check pinout compatibility, particularly regarding the frequency adjustment and ground connections, as pin assignments may vary between manufacturers.