Passive filters are implemented using only passive components such as resistors, capacitors and inductors.

Circuit protection devices are used to protect electronic components from unwanted transients such as current and voltage surges, electrostatic discharge (ESD), lightning, spikes and other signals that can imperil the operation or damage the component

Piezoelectric devices generate electrical signals in response to vibrations and produce mechanical energy in response to electrical signals.

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

Inductors, coils, and chokes are passive components designed to resist changes in current and store energy in the form of a magnetic field.

Specialty IC interface devices are specialty or proprietary products related to IC interface devices

Impedance matching networks are electrical circuits which, when connected between two networks, match the output impedance of the source (the first network) to the input impedance of the load (the receiving or second network).