GDTs handle significantly higher surge currents and offer lower capacitance, making them ideal for primary protection at the entry point of a system.
Gas Discharge Tube Arresters (GDT) Component Intelligence
High-energy surge protection for industrial and telecommunications infrastructure.
What are Gas Discharge Tube Arresters (GDT) components?
GDTs act as high-energy switches that divert dangerous voltage transients to ground. They are essential for protecting sensitive electronics from lightning strikes and power surges due to their high current capacity and extremely low off-state leakage.
How to Choose Gas Discharge Tube Arresters (GDT) Components
Selecting the right GDT requires balancing energy handling with system voltage constraints.
DC Breakdown Voltage
Ensure the GDT's DC spark-over voltage is above the maximum operating voltage of the circuit to prevent nuisance triggering.
Impulse Discharge Current
Match the surge rating (kA) to the expected environmental threat level, such as lightning or switching transients.
Capacitance
For high-speed data lines, prioritize low-capacitance GDTs to minimize signal distortion and insertion loss.
Form Factor
Choose between surface-mount (SMD) for automated assembly or leaded (THT) for high-power, ruggedized applications.
Fail-Short Mechanism
Consider integrated fail-short devices if the application requires a safe, permanent short-circuit mode during catastrophic failure.
Popular Gas Discharge Tube Arresters (GDT) Components
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