AFII-DF-0034

Overview

The AFII-DF-0034 is a ceramic resonant bandpass filter designed for Wi-Fi 6E and Wi-Fi 7 coexistence applications. It operates with a center frequency of 5.49 GHz and provides a bandwidth of 685 MHz. The component features an insertion loss of 1.26 dB and maintains a system impedance of 50 Ohms. It is housed in a compact 2-SMD, No Lead package measuring 9.4 mm x 5.1 mm. The device supports an operating temperature range from -40°C to +105°C.

Feature Summary

• Designed specifically for enhancing coexistence between 5GHz and 6GHz Wi-Fi bands
• High out-of-band rejection capabilities using SMD ceramic technology
• RoHS compliant construction suitable for modern electronic assemblies

Applications

• Wi-Fi 6E router and access point RF front ends
• Wi-Fi 7 device signal filtering
• 5GHz and 6GHz band separation circuits

Procurement Notes

Verify the specific datasheet version when ordering, as manufacturer specifications may undergo updates. Confirm that the required operating temperature range of -40°C to +105°C aligns with your environmental design constraints. Ensure compatibility with standard surface mount assembly processes given the 2-SMD no lead termination style. Cross-reference the 9.4 mm x 5.1 mm footprint dimensions against your PCB layout to guarantee proper placement and clearance.

Selection Notes

Select this component when simultaneous operation of 5GHz and 6GHz Wi-Fi bands is required without interference. The 5.49 GHz center frequency targets specific regulatory bands within the 5.15–5.85 GHz range. Consider the low 1.26 dB insertion loss for efficiency-critical designs. The wide operating temperature range makes it suitable for industrial or outdoor deployment scenarios where thermal stability is essential for consistent RF performance.

Part Context

This part belongs to Abracon's AFII-DF series of ceramic resonant filters. These components are engineered to address spectrum congestion in wireless communications. The series utilizes advanced ceramic materials to achieve high selectivity in a small form factor. This specific model focuses on the intersection of 5GHz and 6GHz bands, supporting next-generation wireless standards.

Replacement Considerations

The AFII-DF-0035 is a related model in the same series but differs in physical dimensions (8.7 x 4.0 mm) and frequency characteristics (5490 – 5850 MHz). Verify if the alternative footprint and spectral coverage meet your specific design requirements before substitution.