Low Pass Filters Function A low pass filter passes signals below its cutoff frequency and attenuates higher frequencies. This results in a cleaner signal by reducing frequency noise and interference. Why you need it Reduces RF noise, hiss, and out of band energy that can affect measurements, audio quality, or receiver performance. Key attributes Predictable attenuation of unwanted frequency components Compact form factor to fit into space constrained assemblies Built with durable materials for reliable operation Compatibility Suitable for integration into standard electronic signal paths in audio, instrumentation, and RF equipment Compatible with common interfaces and power levels as specified by the model Size and materials Compact form factor; exact dimensions vary by model Constructed from materials chosen for stability and durability in typical operating conditions Performance Attenuates frequencies above the cutoff while preserving the desired low frequency content Helps reduce aliasing in sampling systems and improves overall signal integrity Use scenarios 1) In an audio workflow to reduce frequency noise before the ADC or recording chain 2) In a receiver front end to suppress out of band signals and improve selectivity 3) In a data acquisition system to limit bandwidth and minimize interference from frequency noise