SF2140A-1

Overview

The SF2140A-1 is a Surface Acoustic Wave (SAW) bandpass filter manufactured by RFMi, an Akoustis brand. Designed for signal conditioning applications, this component operates at a center frequency of 140 MHz with a specified insertion loss of 10.3 dB. It features multiple bandwidth specifications including 20.8 MHz, 21.4 MHz, and 19.6 MHz. The device is rated for a maximum voltage of 30 V and maintains a characteristic impedance of 50 Ohms. It is housed in a 12-SMD surface-mount package without lead.

Feature Summary

• Surface Acoustic Wave technology for precise RF signal filtering
• Designed for general-purpose signal conditioning in wireless systems
• Optimized for low insertion loss performance

Applications

• Wireless communication infrastructure
• RF front-end modules
• Signal conditioning circuits

Procurement Notes

Verify the manufacturer designation carefully, as RFMi is a brand under Akoustis. Confirm the specific package variant matches the 12-SMD form factor required for your PCB layout. Ensure the operating voltage does not exceed the 30 V rating to maintain reliability. Cross-reference the part number with official distributor catalogs to confirm current availability status and authenticity before procurement.

Selection Notes

Select this component when a SAW filter with a 140 MHz center frequency is required. Consider the 50 Ohm impedance match for system integration. Evaluate the insertion loss specification against link budget requirements. Verify that the SMD package dimensions fit the available board space. Compare alternative frequencies if the application requires different channel allocations.

Part Context

This component belongs to the RFMi family of RF filters, which utilizes SAW, crystal, and ceramic technologies. RFMi, now part of Akoustis, specializes in components for digital and wireless markets. The SF series typically addresses signal conditioning needs in modern communication devices requiring stable frequency response.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Consult official manufacturer channels for cross-reference data.