XLF-192+

Overview

The XLF-192+ is a reflectionless low-pass filter from Mini-Circuits, designed for RF applications up to 1900 MHz. It employs a novel topology that absorbs and terminates stop-band signals internally, eliminating the need for external termination resistors. The component operates at a nominal impedance of 50Ω. Key electrical specifications include an insertion loss of 1.8dB and a cutoff frequency of 1900 MHz. It is housed in a compact 12-VQFN exposed pad surface-mount package, ensuring reliable performance in space-constrained designs.

Feature Summary

• Reflectionless design utilizing internal termination to absorb stop-band energy
• Low insertion loss of 1.8dB for efficient signal transmission
• Compact 12-VQFN surface-mount package for automated assembly

Applications

• S-band upconverter designs
• RF test and measurement systems
• Satellite communications equipment

Procurement Notes

Verify the exact part number suffix against official Mini-Circuits documentation to ensure correct specifications. Confirm package type and electrical ratings match system requirements before procurement. Check for RoHS compliance status if required by project standards. Ensure compatibility with existing PCB footprint and soldering profiles.

Selection Notes

Select this component when internal termination is required to prevent signal reflections without adding external components. The 1.8dB insertion loss offers a balance between attenuation and signal integrity. Consider the 12-VQFN package for high-density board layouts. Verify that the 1900 MHz cutoff frequency aligns with the specific application bandwidth needs.

Part Context

This component belongs to the XLF series of reflectionless filters from Mini-Circuits. These filters are engineered to replace traditional LC filters that require external terminations. The series is widely used in RF and microwave circuits where size reduction and improved stability are critical. The XLF-192+ specifically targets S-band frequencies.

Replacement Considerations

Direct substitutes may include other reflectionless low-pass filters from Mini-Circuits within similar frequency ranges. Verify pinout compatibility and thermal characteristics when replacing. Ensure the replacement maintains the 50Ω impedance and comparable insertion loss specifications.