SF2307D

Overview

The RFMi SF2307D is a Surface Acoustic Wave (SAW) bandpass filter designed for signal conditioning applications. It operates at a center frequency of 353.5 MHz with a bandwidth spanning from 350 MHz to 357 MHz. The component features a 50 Ohm impedance and utilizes a 6-terminal SMD/SMT package, specifically identified as SM3838-6 or similar 6-SMD form factor. It is rated for board mounting and supports an operating temperature range typically extending from -40°C to +85°C or higher depending on specific variant documentation.

Feature Summary

• Provides selective frequency filtering within the VHF band using SAW technology
• Utilizes a compact surface-mount design for automated PCB assembly
• Engineered for stable signal conditioning in communication circuits

Applications

• VHF radio receiver front-end stages
• Telemetry systems requiring precise frequency selection
• Wireless communication modules operating near 350 MHz

Procurement Notes

Verify the exact package pinout and thermal specifications against the manufacturer's latest datasheet before integration. Confirm RoHS compliance status and moisture sensitivity level requirements for your manufacturing process. Ensure the supplier provides traceable documentation matching the RFMi part number SF2307D to avoid counterfeit components.

Selection Notes

Select this component when a narrow bandpass response around 353.5 MHz is required. Compare insertion loss and stopband attenuation characteristics against system noise floor requirements. Ensure the 50 Ohm impedance matches the source and load impedances in the circuit design to minimize reflection losses.

Part Context

This device belongs to the RFMi SF series of SAW filters, which are widely used in consumer electronics and industrial communications. The series offers various center frequencies tailored for different global bands, providing a standardized solution for RF signal integrity and interference rejection in compact electronic devices.

Replacement Considerations

Cross-reference with other RFMi models in the SF series that share the same 6-SMD footprint if pin compatibility is critical. Verify electrical equivalence with alternative SAW filters from other manufacturers only if they meet the exact 350-357 MHz bandwidth and 50 Ohm impedance specifications.