SCLF-420+

Overview

The SCLF-420+ is a lumped LC low-pass filter manufactured by Mini-Circuits, designed for surface-mount applications. It operates with a nominal impedance of 50Ω and provides a frequency range from DC to 420 MHz. The component utilizes an 8-SMD, flat leads package configuration (Case Style YY161). Official documentation specifies a cutoff frequency characteristic of 470 MHz for the SCLF-420 series. The device is engineered for signal conditioning within RF and microwave circuits, ensuring stable performance across its designated bandwidth.

Feature Summary

• Constructs a low-pass filtering response using lumped LC topology
• Designed for surface-mount integration on printed circuit boards
• Maintains a standard 50Ω system impedance for RF compatibility

Applications

• RF signal conditioning in communication systems
• Microwave circuit design requiring harmonic suppression
• IF stage filtering in receiver architectures

Procurement Notes

Verify the exact part number suffix against the manufacturer's current datasheet revision. Confirm that the required cutoff frequency aligns with the specific model variant, as series members may share similar packaging but differ in electrical specifications. Ensure the surface-mount footprint matches the PCB layout constraints before finalizing procurement orders.

Selection Notes

Select this component when a compact, surface-mount solution is required for frequencies up to 420 MHz. The 8-SMD flat lead package facilitates automated assembly processes. Consider the 50Ω impedance match for seamless integration into standard RF transmission lines. Evaluate the physical dimensions against available board space to ensure proper clearance and thermal management.

Part Context

This component belongs to the SCLF series of lumped element filters produced by Mini-Circuits. The series offers various cutoff frequencies tailored for different RF applications. The SCLF-420+ specifically targets the lower end of the VHF/UHF spectrum. Mini-Circuits positions these components as reliable passive elements for general-purpose RF filtering tasks in commercial and industrial electronics.

Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the available documentation. Verify compatibility with alternative models by comparing cutoff frequencies, insertion loss characteristics, and physical package dimensions. Consult the manufacturer's cross-reference tools for validated replacements if direct substitution is required.