SCHF-17+

Overview

The SCHF-17+ is a lumped LC high-pass filter manufactured by Mini-Circuits, designed for signal conditioning applications within the 18 to 200 MHz frequency range. It features an SMD flat lead package (Case Style YY161) and operates with a 50 Ohm impedance. The component provides 30 dB attenuation at 9 MHz and maintains a VSWR of 1.25:1. It supports a maximum power handling of 0.5 W and utilizes a 1 dB bandwidth specification centered around 182 MHz.

Feature Summary

• Lumped LC construction for effective high-pass filtering in compact form factors
• Flat lead surface mount design facilitating automated PCB assembly
• High rejection capability at frequencies below the passband

Applications

• RF signal conditioning circuits requiring specific bandpass characteristics
• Communication systems operating within the 18-200 MHz spectrum
• Test and measurement equipment needing precise frequency filtering

Procurement Notes

Verify the exact part number suffix against official Mini-Circuits documentation to ensure correct specifications. Confirm that the required case style matches your PCB layout constraints. Check for any environmental rating requirements such as ENV02T1 if operating in harsh conditions. Ensure compatibility with the specified evaluation board TB-SCHF-17+ if prototyping. Always refer to the latest datasheet for updated electrical parameters.

Selection Notes

Select this component when a lumped LC topology is preferred over distributed line filters for size efficiency. Consider the 0.5 W power limit when designing for high-power RF environments. The 18-200 MHz passband suits applications requiring suppression of lower frequency interference. Evaluate the SMD footprint availability against your manufacturing capabilities.

Part Context

This component belongs to Mini-Circuits' SCHF series of high-pass filters. It is part of a family of lumped element filters designed for general-purpose RF applications. The series offers various cutoff frequencies and power ratings to suit different system requirements while maintaining consistent performance standards across the product line.

Replacement Considerations

Consult Mini-Circuits official substitution guides for verified alternatives. Cross-reference electrical parameters such as cutoff frequency, insertion loss, and power handling before substituting. Ensure physical footprint compatibility if replacing on existing PCBs.