VBF-7700+

Overview

The VBF-7700+ is a coaxial bandpass filter manufactured by Mini-Circuits, designed for S-band applications. It operates within a center frequency of 7700 MHz with a bandwidth of ±200 MHz (7500 to 7900 MHz). The component features a 50 Ohm impedance and utilizes an internal LTCC structure housed in a unibody construction. This design integrates RF connectors directly with the shield, resulting in a compact form factor suitable for space-constrained environments.

Feature Summary

• Unibody construction integrating RF connectors with the shield for robust mechanical stability
• Internal LTCC technology ensuring repeatable performance characteristics
• Low insertion loss across the passband
• Effective rejection at band edges

Applications

• S-band upconverter assemblies
• Test laboratory systems requiring rugged components
• RF signal filtering in communication equipment

Procurement Notes

Verify the specific datasheet version when ordering, as Mini-Circuits may update specifications or manufacturing processes over time. Confirm that the SMA interface matches your system requirements. Ensure the operating temperature range aligns with your application environment, as availability may vary between standard and extended ranges depending on the specific revision.

Selection Notes

Select this component when a fixed center frequency of 7700 MHz is required with a 400 MHz total bandwidth. The unibody package is ideal for applications prioritizing mechanical durability and minimal footprint over tunability. Consider the LTCC construction for consistent thermal stability compared to discrete cavity designs.

Part Context

This part belongs to Mini-Circuits' VBF series of coaxial bandpass filters. These components are engineered for high reliability in RF and microwave circuits. The VBF-7700+ specifically targets the S-band spectrum, offering a balance of electrical performance and physical compactness through its integrated unibody architecture.

Replacement Considerations

Check for direct substitutes such as the BFCN-7700+ if a surface-mount LTCC variant is preferred. Verify that any replacement maintains the 7700 MHz center frequency and 50 Ohm impedance to ensure circuit compatibility without redesigning the surrounding RF path.