RO3112C

Overview

The RO3112C is a Surface Acoustic Wave (SAW) resonator manufactured by RFMi, designed for surface-mount applications. It operates at a nominal frequency of 433.420 MHz with a frequency stability of 10 PPM. The component utilizes a hermetically sealed ceramic package in an SM5035-4 form factor, measuring 5 mm in length, 3.5 mm in width, and 1.5 mm to 1.7 mm in height. It features a load capacitance of 3.7 pF and supports a maximum operating voltage of 30 VDC. The device functions within a temperature range of -40°C to +85°C and complies with RoHS standards.

Feature Summary

• Hermetically sealed ceramic package providing quartz frequency stabilization
• Surface-mount design compatible with automated assembly processes
• RoHS compliant construction ensuring environmental safety standards

Applications

• Wireless communication modules requiring ISM band operation
• Internet of Things (IoT) sensor nodes
• Remote control and monitoring systems

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm exact electrical tolerances and packaging configurations. Ensure compatibility with the target circuit's load capacitance requirements before integration. Confirm that the selected variant meets the required AEC-Q200 qualification if automotive application is intended. Cross-reference the part number with authorized distributors to validate authenticity and supply chain integrity.

Selection Notes

Select this component when a stable 433.420 MHz reference is required for compact wireless designs. The SAW technology offers a balance between size and performance suitable for space-constrained OEM products. Consider the 10 PPM stability for applications demanding precise frequency alignment without active tuning. Evaluate the thermal range against the operational environment to ensure reliability under extreme conditions.

Part Context

This resonator belongs to the RFMi RO series, which focuses on compact, high-reliability frequency control solutions. The series supports various industrial and consumer wireless standards. The RO3112C specifically targets the 433 MHz ISM band, a common frequency for short-range wireless data transmission and telemetry applications globally.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.