RF3336C

Overview

The RF3336C is a Surface Acoustic Wave (SAW) filter manufactured by RFMi, designed for front-end selectivity in 868.35 MHz receivers. It features a coupled-resonator quartz design with low insertion loss of 2.6 dB and a 700 kHz bandwidth. The component operates within a temperature range of -40°C to +85°C and is housed in an SM-5050-8 package. It complies with RoHS directives and supports board mount installation via SMD/SMT termination.

Feature Summary

• Provides front-end selectivity for narrowband receiver applications
• Utilizes selective null placement for LO and image spurious suppression
• Enables simple external impedance matching through advanced SAW technology

Applications

• Wireless remote-control devices operating under ETSI I-ETS 300 220
• Security devices compliant with FTZ 17 TR 2100 specifications
• Automotive systems adhering to DTI MPT 1340 standards
• Superheterodyne receivers with 10.7 MHz or 500 kHz intermediate frequency

Procurement Notes

Verify the specific manufacturer designation as sources list both Murata Electronics and RFMi/Akoustis for this part number. Confirm current availability status, as some distributors indicate discontinuation while others show stock. Ensure the package type matches the required SM-5050-8 form factor for PCB integration.

Selection Notes

Select this component for European wireless applications requiring precise 868.35 MHz filtering. The low-loss coupled-resonator design simplifies circuit topology by reducing the need for complex external matching networks. Verify compatibility with superhet, direct conversion, or superregen receiver architectures before finalizing the design.

Part Context

This SAW filter belongs to the family of bandpass filters used in RF signal conditioning. It serves as a critical interface between the antenna and the receiver mixer, ensuring signal integrity by attenuating out-of-band interference while passing the desired 868.35 MHz channel with minimal attenuation.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Cross-referencing requires verifying identical center frequency, bandwidth, and package dimensions against alternative SAW filters from other manufacturers.