Gas Discharge Tubes (GDT)

Lightning Protection

Our Gas Discharge Tubes (GDTs) help protect sensitive telecom equipment from damage from transient voltage surges as a result of lightning strikes and equipment switching.

Helping to protect telecom equipment. Our GDTs offer surge protection over a broad voltage range, and low capacitance and many form factors including new surface-mount devices that make them suitable for many different applications and surge protection on power lines. Their low capacitance also reduces signal distortion.


High end voltage available


Low end voltage available


3mm, 5mm, 6mm, 7mm, 8mm diameter devices

When used in coordinated circuit protection solution with PolySwitch devices, thyristor surge protection devices, and MoV devices, GDTs can help equipment manufacturers meet stringent safety regulatory standards.
Gas Discharge Tubes,
TE Article


High Accuracy, Low Insertion Loss
  • Low capacitance and insertion loss
  • Crowbar device with low arc voltage
  • High accuracy spark-over voltages for high precision designs
  • Optional fail-short mechanisms
  • RoHS Compliant, Halogen free


Overvoltage Fault Protection
  • Provides overvoltage fault protection against damage caused by high energy surges
  • Suitable for use in sensitive equipment due to impulse sparkover response
  • Suitable for high-frequency applications
  • New surface-mount devices for autmoated manufacturing


Telecommunications, Industrial, and Consumer Electronics


  • MDF modules
  • xDSL equipment
  • RF systems
  • Antennas
  • Base stations

Industrial and Consumer Electronics

  • Power supplies
  • Surge protectors
  • Alarm systems
  • Irrigation systems