RO3118A

Overview

The RO3118A is a one-port surface-acoustic-wave (SAW) resonator manufactured by Akoustis- RFMi. It operates at a center frequency of 318 MHz with a frequency consistency of 32 ppb and a frequency range of ±75 kHz. The device is housed in a surface-mount ceramic package measuring 5.0 mm x 3.5 mm, with a maximum height of 0.054 inches (1.38 mm). It supports an operating temperature range from -40°C to 85°C and features a capacitance of 2.9 pF.

Feature Summary

• Utilizes fundamental-mode quartz technology for reliable operation
• Encapsulated in a compact surface-mount ceramic case
• Maintains high frequency consistency under varying environmental conditions

Applications

• Frequency reference applications requiring stable oscillation
• General-purpose RF circuits within the specified temperature range

Procurement Notes

Verify the specific suffix requirements against official documentation before ordering, as packaging or variant designations may differ. Confirm that the 318 MHz specification aligns with system requirements. Ensure compatibility with the 5.0 mm x 3.5 mm footprint during PCB layout. Check for any updated RoHS or REACH compliance statements in the latest datasheet revision.

Selection Notes

Select this component when a precise 318 MHz reference is required with tight tolerance. Consider the ±75 kHz range for stability needs. Evaluate the -40°C to 85°C range against environmental constraints. Compare the 2.9 pF capacitance with circuit loading requirements. Verify the ceramic package dimensions fit the available board space.

Part Context

The RO3118A belongs to the SAW resonator category from Akoustis- RFMi. It shares the manufacturer's focus on small size and high performance. Unlike filters, this component functions as a resonant element. It complements other RFMi products designed for general RF applications.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.