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Product Detailed Parameters
- Description：RESONATOR,SM,315.500 MHZ
- Series：-
- Mfr：RFMi
- Package：Tape & Reel (TR),Tape & Reel (TR),Bag
- Type：SAW
- Frequency：315.5 MHz
- Frequency Stability：32ppb
- Frequency Tolerance：±75kHz
- Features：-
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：4-SMD, No Lead
- Size / Dimension：0.197" L x 0.138" W (5.00mm x 3.50mm)
- Height：0.063" (1.60mm)
- Impedance：-
- Capacitance：-
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Overview
The RO3208A is a surface-mount SAW resonator designed for frequency control in transmitter applications. It operates at a center frequency of 315.500 MHz with absolute frequency stability defined by tight tolerances. The component utilizes quartz frequency stabilization within a hermetically sealed ceramic package, ensuring reliable performance across industrial temperature ranges. It supports RoHS compliance and AEC-Q200 standards, making it suitable for demanding wireless communication systems requiring precise signal generation.
Feature Summary
- Hermetically sealed ceramic package construction
- Quartz-based frequency stabilization technology
- Surface mount design for compact integration
- Compliance with RoHS and AEC-Q200 standards
Applications
- Transmitter frequency control elements
- Wireless communication devices
- Internet-connected OEM equipment
- Digital wireless applications
Procurement Notes
Verify the specific ordering suffix to confirm exact frequency tolerance and package variant. Ensure compatibility with existing PCB footprint designs. Confirm that the supplier provides original manufacturer documentation to validate authenticity. Check for any recent supply chain updates from Akoustis or Murata regarding production status.
Selection Notes
Select this component when a stable 315.5 MHz reference is required for transmitter circuits. Consider the hermetic seal for harsh environments. Evaluate thermal stability requirements against the specified operating range. Compare single-port versus dual-port options if impedance matching varies in the target design.
Part Context
RFMi, now an Akoustis brand, specializes in RF components using SAW, crystal, and ceramic technologies. The company was acquired by Murata in 2012 and became independent again in late 2019. This product line focuses on timing and frequency solutions for emerging wireless markets, including filters, duplexers, and resonators.
Replacement Considerations
RO3316E (319.508 MHz) and RO3164D (868.350 MHz) are related resonators but differ significantly in frequency. Direct substitution requires verifying frequency alignment with the system oscillator requirements.
