ABF-9R3G+

Overview

The ABF-9R3G+ is a thin-film surface-mount bandpass filter from Mini-Circuits, designed for the 9.2 to 9.4 GHz frequency range with a center frequency of 9.3 GHz and a bandwidth of 200 MHz. It features a 50 Ohm impedance and an insertion loss ranging from 1.2 dB to 2.4 dB. The component utilizes advanced thin-film technology to provide high selectivity and strong out-of-band rejection within a compact SMT package. It is engineered for consistent performance across commercial and military temperature extremes, ensuring minimal signal distortion in demanding RF applications.

Feature Summary

• Advanced thin-film construction for high precision and reliability
• Compact surface-mount design suitable for space-constrained systems
• Optimized for low insertion loss and high out-of-band suppression
• Maintains stable performance under extreme temperature conditions

Applications

• Satellite communication systems
• Radar equipment
• Test and measurement instruments

Procurement Notes

Verify the specific datasheet version when sourcing, as Mini-Circuits may update electrical specifications or compliance certifications over time. Confirm that the '+ ' suffix indicates RoHS and REACH compliance status relevant to your region's regulations. Ensure the ordering part number matches the exact frequency requirements, as variations exist within the ABF series. Request evaluation board documentation if testing integration into existing circuits.

Selection Notes

Select this component when a narrow 200 MHz bandwidth is required at 9.3 GHz with strict size constraints. The thin-film technology offers superior thermal stability compared to standard lumped-element designs. Consider the insertion loss range of 1.2 to 2.4 dB against system link budget requirements. This model is appropriate for both commercial and military-grade designs requiring consistent performance across wide temperature ranges.

Part Context

The ABF-9R3G+ belongs to the Mini-Circuits ABF series, which covers frequencies from 6.5 GHz to 9.3 GHz. These filters are characterized by their compact SMT form factor and high-performance filtering capabilities. The series is widely used in wireless and microwave applications where precise signal conditioning is critical. Other models in the family include ABF-7G+ and ABF-8R75G+, offering different center frequencies while maintaining similar structural advantages.

Replacement Considerations

Direct substitutes within the same series include ABF-9R3G (non-RoHS) or other ABF models with compatible center frequencies such as ABF-8R75G+. Verify mechanical footprint compatibility before substitution. Cross-referencing with other manufacturers' 9.3 GHz SMT bandpass filters requires careful comparison of insertion loss and rejection specs.