Noise Filters / Surge Protectors

Noise filters and surge protectors are devices that protect electrical circuits and appliances from problems with voltage, current, frequency, etc. Various product types are available, including products that suppress the generation and/or transmission of noise (unintended electrical signals and electromagnetic waves) and surges (transient abnormal voltages and currents), those that protect the circuit and devices themselves, and more. Some products are highly versatile, while others are designed for more specific applications, such as those for use with power supply lines. Noise and surge may cause damage to circuits and appliances, system failure, etc., so it is important to thoroughly check the specifications for items such as operating temperature range, rated voltage, current and dielectric strengths and use noise filters and surge protectors that suit the application.