SF2186E

Overview

The RFMi SF2186E is a Surface Acoustic Wave (SAW) bandpass filter designed for signal conditioning applications. It operates at a center frequency of 1.26852 GHz with a bandwidth ranging from 1258.29 MHz to 1278.75 MHz. The component features a 50 Ohm impedance and a maximum insertion loss of 1.7 dB. Rated for 3 V, it utilizes an SM-3030-6 surface-mount package suitable for board mounting. The device supports operation within a temperature range of -40°C to +85°C.

Feature Summary

• Surface Acoustic Wave technology for precise signal filtering
• Compact SM-3030-6 surface-mount package design
• Low insertion loss characteristics for efficient signal transmission

Applications

• Wireless communication systems requiring 1.26 GHz band filtering
• RF front-end modules in mobile devices
• Signal conditioning circuits in telemetry equipment

Procurement Notes

Verify the specific suffix and packaging configuration against the manufacturer's current datasheet before ordering. Confirm that the SM-3030-6 footprint matches your PCB layout requirements. Ensure voltage ratings and thermal limits align with your system's operational environment to maintain component reliability and performance standards.

Selection Notes

Select this component when a narrow bandpass response around 1.26852 GHz is required. The 1.7 dB insertion loss offers a balance between signal attenuation and power efficiency. Consider the 50 Ohm impedance match for standard RF interfaces. The compact form factor makes it suitable for space-constrained designs compared to larger ceramic filters.

Part Context

This part belongs to the RFMi SF series of SAW filters, which are engineered for high-frequency signal processing. The series typically includes various center frequencies tailored for specific wireless standards. These components are manufactured using advanced acoustic wave technologies to ensure consistent performance across automotive and industrial temperature ranges.

Replacement Considerations

Cross-reference with other RFMi SAW filters in the same series for alternative center frequencies. Verify mechanical compatibility with the SM-3030-6 footprint if substituting with similar packages from other manufacturers. Ensure electrical parameters such as impedance and bandwidth meet the original circuit design specifications.