XLF-73+

Overview

The Mini-Circuits XLF-73+ is a reflectionless low-pass filter designed for RF applications. It operates with a cutoff frequency of 7000 MHz and maintains a 50Ω impedance. The device utilizes a novel topology that absorbs stop-band signals, eliminating the need for external terminations. Key electrical specifications include a maximum insertion loss of 1.9 dB and operation from DC up to 9.9 GHz. It is housed in a compact 12-VQFN package with an exposed pad, ensuring reliable performance in signal conditioning circuits.

Feature Summary

• Employs a novel reflectionless filter topology that internally absorbs and terminates stop-band signals
• Functions as a low-pass filter with a defined cutoff frequency for signal conditioning
• Designed for high-performance RF environments requiring minimal signal reflection

Applications

• RF signal conditioning in communication systems
• Integration into S-band upconverter assemblies
• Harmonic suppression in wideband RF circuits

Procurement Notes

Verify the specific part number suffix against official Mini-Circuits documentation to ensure correct specifications. Confirm package type and environmental ratings match project requirements. Cross-reference datasheet parameters for cutoff frequency and impedance before procurement to avoid integration errors.

Selection Notes

Select this component when absorption of out-of-band signals is critical to prevent system interference. The integrated termination simplifies PCB layout by removing the need for additional resistive loads. Ensure the operating frequency range aligns with the 7000 MHz cutoff specification for optimal attenuation performance.

Part Context

This component belongs to Mini-Circuits' line of reflectionless filters, which utilize absorptive topologies. Unlike traditional filters that reflect unwanted frequencies, these devices dissipate stop-band energy internally. This family is engineered for applications where signal integrity and reduced noise floor are paramount in RF design.

Replacement Considerations

Consult official Mini-Circuits substitution guides for verified alternatives. Generic equivalents may not replicate the internal absorption characteristics or VQFN footprint. Verify compatibility with existing circuit impedance and thermal management requirements before swapping.