SF1182B

Overview

The SF1182B is a Surface Acoustic Wave (SAW) bandpass filter manufactured by RFMi, designed for general-purpose RF applications. It operates at a nominal center frequency of 836.5 MHz with a bandwidth of 25 MHz, covering the range from 824 to 849 MHz. The device features a typical insertion loss of 2.1 dB and is housed in a compact 6-SMD, no-lead package.

Feature Summary

• Utilizes Surface Acoustic Wave technology for selective frequency filtering
• Optimized for cell phone RF applications
• Compact surface-mount design suitable for automated assembly

Applications

• Cell phone RF circuits
• General purpose RF signal conditioning
• Frequency selective filtering in mobile communication devices

Procurement Notes

Verify the manufacturer designation carefully, as the SF1182B is produced by both RFMi and Akoustis. Confirm that the specific datasheet matches the required electrical parameters, particularly the center frequency and insertion loss specifications, before finalizing procurement decisions.

Selection Notes

Select this component when a SAW filter is required for the 800 MHz band with a 25 MHz bandwidth. Ensure the application supports the 6-SMD package type and verify compatibility with the 50 Ohm system impedance typically associated with this series.

Part Context

This part belongs to the SF series of SAW filters from RFMi. These components are engineered for high selectivity and low insertion loss in mobile telecommunications. The SF1182B specifically targets the GSM/DCS bands commonly used in cellular handsets.

Replacement Considerations

Cross-reference with other 836.5 MHz SAW filters if supply constraints exist. Verify pinout compatibility and electrical tolerance alignment with alternative suppliers such as Akoustis or other SAW filter manufacturers offering similar center frequencies.