BFHK-7551+

Overview

The BFHK-7551+ is an LTCC SMT bandpass filter with a 6.8 to 8.4 GHz passband and 50 ohm impedance. It features a 7.5 GHz center frequency, 1.6 GHz bandwidth, and 4.6 dB insertion loss. The component handles up to 1 W RF input power and operates from -55°C to +125°C. Dimensions are 4.95mm x 3.65mm x 1.96mm in a 3-SMD package.

Feature Summary

• Utilizes proprietary LTCC material for miniature size and high repeatability
• Supports 1 W RF input power handling
• Wide operating temperature range from -55°C to +125°C

Applications

• RF signal conditioning
• Microwave communication systems
• Test and measurement equipment

Procurement Notes

Verify the exact part number suffix against official Mini-Circuits documentation to ensure correct specifications. Confirm RoHS compliance status and lead times directly with authorized distributors. Ensure compatibility with surface mount assembly processes given the small 1812 footprint.

Selection Notes

Select this component for applications requiring a narrow bandpass filter in the C-band or lower Ku-band frequencies. The LTCC construction offers stability over temperature variations. Verify that the 4.6 dB insertion loss meets system link budget requirements before finalizing the design.

Part Context

This model belongs to the BFHK series of high-performance LTCC SMT bandpass filters from Mini-Circuits. The series covers frequencies from 4.5 GHz to 23.8 GHz. These filters are designed for reliable performance in demanding RF environments using advanced ceramic technology.

Replacement Considerations

Check Mini-Circuits datasheets for alternative models within the BFHK series with similar center frequencies. Verify that any substitute maintains the required 50 ohm impedance and physical footprint for PCB compatibility.