SF1189B-1

Overview

The Murata Electronics SF1189B-1 is a Surface Acoustic Wave (SAW) filter designed for WLAN applications. It operates at a center frequency of 280MHz with a bandwidth of 19.8MHz and an insertion loss of 8.3dB. The component utilizes an 8-SMD, no-lead package measuring 5.00mm x 5.00mm with a maximum height of 1.70mm. This device is classified as obsolete.

Feature Summary

• Surface acoustic wave technology for signal conditioning
• Optimized for wireless local area network environments
• Compact surface mount construction

Applications

• Wireless Local Area Network systems

Procurement Notes

Verify the obsolete status before integration. Confirm availability through secondary markets or authorized distributors handling end-of-life inventory. Ensure compatibility with existing design specifications given the discontinuation notice.

Selection Notes

Consider the 280MHz center frequency and 19.8MHz bandwidth when evaluating suitability for specific WLAN intermediate frequency stages. Assess the 8.3dB insertion loss impact on system sensitivity. Verify that the 8-SMD package dimensions fit the target PCB layout constraints.

Part Context

This component belongs to the SF series of RF SAW filters manufactured by Murata Electronics. It serves as a bandpass filter for radio frequency signal processing in communication devices requiring precise frequency selection within the specified WLAN operational range.

Replacement Considerations

No public confirmed substitute part numbers are available for this discontinued component.