In which fields are gas discharge tubes mainly applied? Do they have directionality?

[Alan_Yang]

Question: What fields are gas discharge tubes commonly used in, and do they have polarity or directionality?
Answer: There is no polarity. These devices are mainly applied in communication products (with low capacitance) and common-mode protection of power supplies.

• Gas Discharge Tube Arresters (GDT) have no polarity. No matter how they are connected in the circuit, as long as the voltage reaches a certain level, they will work normally and discharge the excess voltage.

• They are mainly used in communication products (due to their low capacitance, which can protect communication equipment from overvoltage damage without affecting the signal) and in the common-mode protection of power supplies (by diverting the excess voltage on the power line to the ground to protect the components of the power circuit).

More Littelfuse circuit protection products

Littelfuse Circuit Protection products provide stable and reliable signal transmission guarantee for all kinds of precision electronic devices by virtue of their precise adjustment relationship with capacitance, dynamic resistance, etc. in terms of high-frequency characteristics, and their performance is excellent in the industry.

• Fuses

• Electrical, Specialty Fuses

• PTC Resettable Fuses

• Gas Discharge Tube Arresters (GDT)

• Varistors, MOVs

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