ZLPF-120+

Overview

The ZLPF-120+ is a 50Ω low pass filter manufactured by Mini-Circuits, designed for radio frequency applications. It features an SMA connectorized in-line module package and provides a passband from DC to 120 MHz. The component exhibits an insertion loss under 4 dB and offers good impedance matching within the passband while delivering high attenuation in the stopband.

Feature Summary

• Connectorized coaxial design with SMA interfaces
• Wide bandwidth coverage from DC to 120 MHz
• Low insertion loss characteristics within the passband
• High stopband rejection performance

Applications

• Military communications systems
• RF signal conditioning
• Frequency synthesis filtering

Procurement Notes

Verify the specific datasheet version for the ZLPF-120+ to confirm exact electrical parameters such as return loss and VSWR values. Ensure compatibility with 50Ω system impedance requirements. Confirm that the SMA connector type matches the existing infrastructure. Review thermal handling specifications if operating in enclosed environments.

Selection Notes

Select this component when a broadband low-pass response up to 120 MHz is required with minimal signal degradation. The connectorized form factor simplifies integration into test setups or modular RF chains compared to surface-mount alternatives. Consider physical size constraints as the in-line module occupies more board space than SMD filters.

Part Context

This part belongs to Mini-Circuits' ZLPF series of low-pass filters. These units are engineered for general-purpose RF filtering tasks where reliable performance across a wide frequency range is essential. The series typically includes various cutoff frequencies to suit different application bandwidths.

Replacement Considerations

Consult Mini-Circuits documentation for direct equivalents. Verify that any substitute maintains the 50Ω impedance and SMA interface. Ensure the replacement meets the same 120 MHz cutoff specification and insertion loss limits.