XHF-721M+

Overview

The XHF-721M+ is a two-section reflectionless high-pass filter from Mini-Circuits, operating within the DC to 21 GHz range. It features a cutoff frequency of 700 MHz and a passband extending to 5000 MHz. The device maintains a 50 Ohm impedance and utilizes a 24QFN package (Case Style DG1677-2). Key electrical specifications include a typical insertion loss of 0.6 dB in the passband and stopband rejection up to 50 dB. The component is designed for SMD/SMT termination.

Feature Summary

• Employs novel reflectionless topology that absorbs and terminates stopband energy internally
• Provides high stopband rejection suitable for suppressing strong spurious signals
• Mitigates intermodulation products through effective signal isolation

Applications

• Suppression of strong spurious signals in RF systems
• Reduction of intermodulation products in complex assemblies
• Integration into S-band upconverters requiring high-performance filtering

Procurement Notes

Verify the specific datasheet version and case style designation DG1677-2 against current manufacturing records. Confirm the 24QFN package dimensions and pinout configuration prior to PCB layout finalization. Ensure compatibility with standard SMD/SMT reflow processes. Cross-reference the cutoff frequency specifications with system requirements to validate performance at 700 MHz.

Selection Notes

Select this component when internal termination of reflected energy is required to maintain system stability. The reflectionless design prevents signal degradation caused by impedance mismatches in the stopband. Ideal for applications demanding high rejection levels without external terminations. Consider the 24QFN form factor for compact integration needs.

Part Context

This part belongs to Mini-Circuits' X-Series of MMIC reflectionless filters. These components utilize proprietary topology to eliminate reflections typically associated with traditional filters. The series covers various frequency ranges up to 21 GHz, offering integrated solutions for RF and microwave applications where signal integrity is critical.

Replacement Considerations

No public confirmed substitute part numbers are available.