XLF-151+

Overview

The Mini-Circuits XLF-151+ is a reflectionless low-pass RF filter with a 280MHz cutoff frequency and 1.8dB insertion loss. It utilizes a novel topology to absorb stop-band signals internally, eliminating the need for external terminations. The component is housed in a compact 12-VQFN package with an exposed pad, measuring 3.00mm x 3.00mm x 0.89mm. Designed for surface mount installation, it operates within standard commercial temperature ranges and complies with RoHS3 standards.

Feature Summary

• Employs a reflectionless topology that absorbs and terminates out-of-band signals internally rather than reflecting them.

Applications

• RF front-end modules requiring signal isolation without reflection issues
• Wireless communication systems utilizing low-pass filtering
• Test and measurement equipment needing clean signal termination

Procurement Notes

Verify the specific ordering suffix (TR, CT, or DKR) against your manufacturing requirements to ensure correct packaging format. Confirm that the 12-VQFN exposed pad footprint matches your PCB layout exactly. Ensure environmental compliance with RoHS3 is acceptable for your final assembly process before placing orders.

Selection Notes

Select this component when internal termination of reflected energy is critical to system stability. The 280MHz cutoff defines the upper frequency limit for passband transmission. Consider the 12-VQFN package size constraints and thermal dissipation capabilities via the exposed pad during circuit design.

Part Context

This part belongs to Mini-Circuits' XLF series of reflectionless filters. Unlike traditional filters that reflect stop-band energy, this series integrates termination resistors on-chip. This approach simplifies circuit design by removing the need for matched loads at the filter output port.

Replacement Considerations

Direct substitutes include other Mini-Circuits XLF series models with similar cutoff frequencies. Verify that alternative components maintain the same reflectionless characteristic and package dimensions to ensure mechanical compatibility.