Active high pass filters pass signals from high frequencies and reject signals from low frequencies

Active filters are electronic filers that use active components such as voltage amplifiers or operational amplifiers.

RF filters and microwave filters are devices that pass or reject signals by frequency.

Optical bandpass filters are designed to transmit a specific waveband.

RF band pass filters are active or passive circuits that pass signals from a specific frequency band and reject signals from out-of-band frequencies.

Specialty analog linear devices are specialty or proprietary products and accessories related to analog linear devices.

Filtration media and elements are designed to remove suspended particles from a process stream.