SF2191E

Overview

The RFMi SF2191E is a Surface Acoustic Wave (SAW) bandpass filter designed for signal conditioning applications. It operates at a center frequency of 1620.75 MHz with a bandwidth of 11.5 MHz, covering a range from 1.615 GHz to 1.6265 GHz. The component features a 50 Ohm impedance and a voltage rating of 3 V. It utilizes an SMD/SMT mounting style in a 6-terminal surface mount package. The device supports board mount installation and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Surface Acoustic Wave technology for precise frequency filtering
• Designed for high-reliability signal conditioning
• Compact surface-mount packaging for automated assembly

Applications

• Mobile communication devices
• Wireless networking equipment
• RF front-end modules

Procurement Notes

Verify the specific package variant and tape/reel specifications against the official datasheet before ordering. Confirm that the selected component meets the required thermal management standards for the target application environment. Ensure compatibility with standard reflow soldering profiles as defined by the manufacturer's guidelines to maintain device integrity during assembly processes.

Selection Notes

Select this component when a narrow bandwidth SAW filter is required for frequencies around 1.6 GHz. Consider the 50 Ohm impedance match for system integration. Evaluate the operating temperature range to ensure suitability for the intended environmental conditions. Compare physical dimensions against available PCB space constraints prior to finalizing the design.

Part Context

This part belongs to the SF series of signal conditioning components manufactured by RFMi. These filters are engineered for robust performance in radio frequency applications. The series typically includes various center frequencies and bandwidth options to support different wireless standards and communication protocols across multiple electronic product categories.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the available documentation.