SCLF-135+

Overview

The SCLF-135+ is a surface-mount lumped LC low-pass RF filter manufactured by Mini-Circuits. It provides a DC to 135 MHz passband with a 50Ω impedance. The component features an 8-SMD, flat lead package designed for compact circuit integration. Key electrical specifications include a VSWR of 1.7:1 and a power handling capacity of 0.5 W. It offers significant signal rejection, achieving 20 dB attenuation at frequencies between 210-300 MHz. The device operates within a storage temperature range of -55° to 100° C.

Feature Summary

• Surface-mount lumped LC architecture for space-efficient PCB integration
• Defined low-pass filtering characteristic with specified stop-band rejection
• Standardized 50Ω impedance matching for RF system compatibility

Applications

• RF signal conditioning in communication systems
• Harmonic suppression in transmitter output stages
• Interference filtering in receiver input circuits

Procurement Notes

Verify the specific datasheet revision (e.g., REV. E) against your design requirements. Confirm that the 8-SMD flat lead package dimensions match your footprint. Ensure the 0.5 W power rating is sufficient for your application's thermal environment. Check RoHS compliance status if required by your manufacturing standards.

Selection Notes

Select this component when a sharp cutoff near 135 MHz is required in a small form factor. Consider the 20 dB rejection level at 210-300 MHz to ensure adequate interference mitigation. Evaluate the 0.5 W power limit against peak signal levels. Compare the 1.7:1 VSWR against system return loss budgets.

Part Context

Mini-Circuits specializes in RF, IF, and microwave components ranging from DC to 86 GHz. The SCLF series represents their surface-mount low-pass filter offerings. This model utilizes lumped LC elements to achieve filtering performance in a compact SMD package suitable for modern high-density electronics.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult Mini-Circuits official resources for equivalent or alternative models meeting similar frequency and package specifications.