RO3112E

Overview

The RO3112E is a surface-mount SAW resonator operating at a nominal frequency of 433.495 MHz, manufactured by RFMi. It utilizes a hermetically sealed ceramic package (SM3030-6) with quartz frequency stabilization to ensure high stability and reliability in wireless applications. The component supports a load capacitance of 3.7 pF and is designed for operation within a temperature range of -40°C to +85°C. It complies with RoHS standards and meets AEC-Q200 automotive qualification requirements, making it suitable for demanding digital and wireless communication environments.

Feature Summary

• Hermetically sealed ceramic package providing robust environmental protection
• Quartz frequency stabilization for enhanced signal integrity
• Compliance with RoHS directives and AEC-Q200 automotive standards

Applications

• Wireless remote keyless entry systems
• Automotive access control modules
• Short-range wireless communication devices

Procurement Notes

Verify the specific suffix (e.g., DG) against official datasheets to confirm exact frequency tolerance and packaging details. Ensure compatibility with SMD/SMT assembly processes. Confirm that the selected variant meets the required load capacitance and temperature specifications for the target application environment before finalizing procurement.

Selection Notes

Select this component when a stable 433 MHz reference is required for wireless transmission or reception circuits. Consider the SM3030-6 footprint for PCB layout constraints. Verify that the operational temperature range aligns with the device's intended environment, particularly for automotive or industrial use cases requiring AEC-Q200 compliance.

Part Context

RFMi, now part of Akoustis, specializes in RF components using SAW, crystal, and ceramic technologies. The RO3112E belongs to their series of compact resonators designed for integration into OEM products. These components facilitate internet connectivity and control functions in next-generation wireless devices, emphasizing reliability and miniaturization for modern electronic systems.

Replacement Considerations

Cross-reference with other 433 MHz SAW resonators in the SM3030-6 package. Verify electrical parameters such as load capacitance and frequency tolerance. Ensure mechanical dimensions and termination styles match the existing design to avoid rework.