SF2042B

Overview

The SF2042B is a Surface Acoustic Wave (SAW) filter manufactured by RFMi, designed for signal conditioning applications. It operates at a center frequency of 456 MHz with a bandwidth of 7.5 MHz to 12.8 MHz, covering a frequency range from 449.6 MHz to 462.4 MHz. The component features an impedance of 200 ohms and a voltage rating of 30 V. It is housed in an SMP03-10 surface-mount package and supports SMD/SMT termination types. The device functions within a temperature range of -40°C to +85°C.

Feature Summary

• Utilizes Surface Acoustic Wave technology for precise signal filtering
• Optimized for WiMax RF applications and intermediate frequency processing
• Designed for surface-mount integration into compact electronic circuits

Applications

• WiMax RF signal processing
• Intermediate frequency filtering
• General signal conditioning in wireless communication systems

Procurement Notes

Verify the specific manufacturer designation, as the component may be listed under Akoustis-RFMi or RFMi depending on the distributor source. Confirm the exact datasheet version and RoHS compliance status directly with the supplier before procurement. Ensure the ordering suffix matches the required packaging configuration, as standard lead times may vary by vendor.

Selection Notes

Select this component when a 456 MHz SAW filter with 200-ohm impedance is required for WiMax or similar broadband applications. Consider the SMP03-10 package size for board space constraints. Verify that the operating temperature range of -40°C to +85°C meets the environmental requirements of the target system design.

Part Context

The SF2042B belongs to the SF series of SAW filters produced by RFMi. These components are engineered for high-performance signal integrity in mobile and fixed wireless infrastructure. The part represents a specialized solution for filtering specific frequency bands in modern communication protocols requiring stable acoustic wave propagation.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Cross-referencing requires consulting official RFMi replacement guides or equivalent specifications from other SAW filter manufacturers.