XLF-272M+

Overview

The XLF-272M+ is a reflectionless low pass filter from Mini-Circuits, operating from DC to 2700 MHz with a 50Ω impedance. It utilizes a novel topology that absorbs and terminates stopband signals internally, eliminating reflections in the stopband while maintaining a 50Ω match. The device features a compact 3x3 mm 12-lead QFN-style package with an exposed pad, designed for surface mount technology. It supports bi-directional operation where RF1 and RF2 are interchangeable, ensuring flexibility in circuit design.

Feature Summary

• Employs reflectionless technology to absorb and terminate stopband signals internally, preventing signal reflections.
• Maintains a 50Ω impedance match across the operational frequency range.
• Features a compact 3x3 mm 12-lead QFN-style surface mount package.
• Supports bi-directional functionality with interchangeable RF1 and RF2 ports.

Applications

• RF signal conditioning in communication systems
• Harmonic suppression in transmitter chains
• Interference filtering in receiver front-ends

Procurement Notes

Verify the specific datasheet version for precise electrical parameters such as insertion loss and return loss values. Confirm the package type matches the 12-lead QFN specification. Ensure compatibility with the intended PCB footprint and thermal management requirements for the exposed pad configuration.

Selection Notes

Select this component when stopband reflection control is critical to system performance. The reflectionless design prevents standing waves that can destabilize active components. Consider the temperature robustness up to +105°C for demanding environments. Verify that the 2700 MHz cutoff frequency aligns with the required signal bandwidth and harmonic rejection needs.

Part Context

This part belongs to Mini-Circuits' XLF series of reflectionless filters. These components are engineered to address common issues in RF circuits where traditional filters cause signal reflections due to impedance mismatches in the stopband. The series offers various cutoff frequencies to suit different application requirements.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Consult Mini-Circuits directly for potential alternatives or updated product line information.

FAQ

Is the XLF-272M+ directional?

No, the XLF-272M+ is bi-directional, meaning RF1 and RF2 are interchangeable.

What is the maximum operating temperature?

The device is temperature robust and supports operation up to +105°C.