XLF-252H+

Overview

The XLF-252H+ is a reflectionless low-pass filter manufactured by Mini-Circuits, designed for radio frequency signal conditioning applications. It operates with a cutoff frequency of 3.8 GHz and provides a bandwidth of 2.6 dB. The component supports a frequency range from DC to 2500 MHz and maintains a characteristic impedance of 50 ohms. It utilizes a three-section novel filter topology that absorbs and terminates stop-band signals to prevent reflections. The device is housed in a 24-VFQFN package with an exposed pad, designated as case style DG1847.

Feature Summary

• Employs a three-section reflectionless topology that absorbs and terminates stop-band signals to eliminate unwanted reflections.

Applications

• RF signal conditioning
• Radio frequency systems
• Microwave component integration

Procurement Notes

Verify the specific datasheet version and electrical parameter graphs provided by Mini-Circuits or authorized distributors before integration. Confirm that the 24-VFQFN package dimensions and thermal requirements align with your PCB layout constraints. Ensure compatibility with the 50-ohm system impedance and check for any specific handling instructions related to the exposed pad design during assembly.

Selection Notes

Select this component when reflectionless performance is critical to maintain signal integrity in RF paths. The XLF-252H+ is suitable for designs requiring a low-pass response up to 3.8 GHz with minimal out-of-band reflection. Consider the 24-VFQFN package size for space-constrained applications. Verify that the DC to 2500 MHz operational range meets the specific frequency requirements of the target application.

Part Context

This part belongs to Mini-Circuits' XLF series of reflectionless filters, which utilize proprietary topology to absorb stop-band energy. The series covers various frequency ranges and impedances, providing solutions for modern RF systems where traditional filters may cause mismatch issues due to reflected signals. The XLF-252H+ specifically addresses needs for low-pass filtering with high isolation characteristics.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Consult Mini-Circuits directly for potential alternatives within the XLF series or other reflectionless filter families if this specific cutoff frequency or package is unavailable.

FAQ

How does the XLF-252H+ handle stop-band signals?

It employs a novel three-section filter topology that absorbs and terminates stop-band signals, preventing them from reflecting back into the circuit.

What is the cutoff frequency of this filter?

The cutoff frequency is specified as 3.8 GHz.