SF2283D

Overview

The SF2283D is a Surface Acoustic Wave (SAW) bandpass filter manufactured by RFMi. It operates at center frequencies of 433.2 MHz and 434.64 MHz with a bandwidth of 0.45 MHz. The device features an insertion loss of 4 dB and is housed in an 8-SMD, no-lead surface-mount package measuring 3.80mm x 3.80mm x 1.40mm. It complies with RoHS directives and meets AEC-Q200 automotive reliability standards.

Feature Summary

• Surface-mount SAW technology for compact integration
• Dual frequency operation at 433.2 MHz and 434.64 MHz
• Automotive-grade reliability certification

Applications

• ISM band communication systems
• Remote keyless entry receivers
• Industrial telemetry links

Procurement Notes

Verify the specific center frequency variant required (433.2 MHz or 434.64 MHz) as both are listed under this part number. Confirm the 8-SMD package dimensions match the design footprint. Ensure compliance with RoHS and AEC-Q200 standards is documented for the specific batch ordered.

Selection Notes

Select this component for applications requiring narrowband filtering in the 433 MHz ISM range. The low profile and small footprint suit space-constrained designs. Verify that the 4 dB insertion loss aligns with system sensitivity requirements before finalizing the design.

Part Context

RFMi specializes in high-performance ceramic filters for wireless communications. This SAW filter supports industrial, scientific, and medical (ISM) bands. The product line includes solutions for WiFi, GPS, and LTE applications, emphasizing miniaturization and reliability for modern electronic devices.

Replacement Considerations

No direct public substitute part numbers are confirmed for this specific model. Evaluate alternative SAW filters from other manufacturers only if they match the exact 433.2/434.64 MHz dual-frequency specification and 8-SMD package constraints.