Broadband Gas Discharge Tube (GDT) Protectors for Coaxial Surge Protection

HUBER+SUHNER 3401 and 3402 series GDT protectors offer electromagnetic threat mitigation with DC continuity support

Image of HUBER+SUHNER Broadband Gas Discharge Tube (GDT) Protectors for Coaxial Surge Protection HUBER+SUHNER 3401 and 3402 series GDT protectors deliver dependable broadband protection for coaxial transmission lines exposed to electromagnetic disturbances such as lightning-induced surges, electrostatic discharge (ESD), and nuclear electromagnetic pulses (NEMP). Engineered to protect RF equipment in critical infrastructure and defense applications, these protectors feature a voltage-triggered GDT that swiftly diverts surge energy to ground. The series 3401 supports operation up to 1 GHz, while series 3402 extends performance up to 3 GHz. Both models provide DC and AC continuity, making them ideal for systems with remotely powered devices. Key benefits include a replaceable GDT capsule, surge current handling capability up to 30 kA (8/20 µs), a variety of connector options such as N, TNC, and 7/16. Optional SEMPER self-extinguishing technology further enhances safety.

Features
  • Broadband operation: up to 1 GHz (series 3401) or 3 GHz (series 3402)
  • Surge current handling capacity up to 30 kA (8/20 µs)
  • DC/AC continuity for remote-powered applications
  • Field-replaceable GDT capsule for easy maintenance
  • Connectors options: N, TNC, or 7/16
  • Optional SEMPER self-extinguishing technology for enhanced safety
Applications
  • Vehicle protection applications
  • Radar and sensor systems
  • Remote radio installations
  • VHF/UHF transmission networks
  • Satellite and broadcast infrastructure

3401 Series GDT Protectors

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
GDT 230 V 20KA 2 IN-LINE3401.01.AGDT 230 V 20KA 2 IN-LINE0 - Immediate$223.49View Details
GDT 230 V 20KA 2 IN-LINE3401.00.0022GDT 230 V 20KA 2 IN-LINE0 - Immediate$236.50View Details
GDT  20KA 2 IN-LINE3401.01.CGDT 20KA 2 IN-LINE0 - Immediate$223.49View Details
GDT 230 V 20KA 2 IN-LINE3401.02.AGDT 230 V 20KA 2 IN-LINE0 - Immediate$223.49View Details
GDT  20KA 2 IN-LINE3401.17.0033GDT 20KA 2 IN-LINE0 - Immediate$239.72View Details
GDT  20KA 2 IN-LINE3401.17.0048-EXGDT 20KA 2 IN-LINE0 - Immediate$254.75View Details
GDT 470 V 20KA 2 IN-LINE3401.17.0056GDT 470 V 20KA 2 IN-LINE0 - Immediate$247.52View Details
GDT 230 V 20KA 2 IN-LINE3401.17.CGDT 230 V 20KA 2 IN-LINE0 - Immediate$233.49View Details
GDT 230 V 20KA 2 IN-LINE3401.17.KGDT 230 V 20KA 2 IN-LINE0 - Immediate$238.66View Details
GDT 230 V 20KA 2 IN-LINE3401.17.LGDT 230 V 20KA 2 IN-LINE0 - Immediate$517.13View Details
GDT  20KA 2 IN-LINE3401.18.AGDT 20KA 2 IN-LINE0 - Immediate$233.49View Details
GDT 230 V 20KA 2 IN-LINE3401.26.0012-EXGDT 230 V 20KA 2 IN-LINE0 - Immediate$245.10View Details
GDT 230 V 20KA 2 IN-LINE3401.26.AGDT 230 V 20KA 2 IN-LINE0 - Immediate$223.49View Details
GDT 230 V 20KA 2 IN-LINE3401.26.CGDT 230 V 20KA 2 IN-LINE0 - Immediate$223.49View Details

3402 Series GDT Protectors

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
GDT  20KA 2 IN-LINE3402.17.3001GDT 20KA 2 IN-LINE0 - Immediate$252.84View Details
GDT  20KA 2 IN-LINE3402.17.3002GDT 20KA 2 IN-LINE0 - Immediate$252.84View Details
GDT 230 V 20KA 2 IN-LINE3402.26.3001GDT 230 V 20KA 2 IN-LINE0 - Immediate$242.45View Details
GDT  20KA 2 IN-LINE3402.17.0033GDT 20KA 2 IN-LINE0 - Immediate$261.85View Details
GDT 230 V 20KA 2 IN-LINE3402.17.0043GDT 230 V 20KA 2 IN-LINE0 - Immediate$255.91View Details
GDT  20KA 2 IN-LINE3402.17.0044GDT 20KA 2 IN-LINE0 - Immediate$255.91View Details
GDT 230 V 20KA 2 IN-LINE3402.17.0072-EXGDT 230 V 20KA 2 IN-LINE0 - Immediate$263.19View Details
GDT  20KA 2 IN-LINE3402.17.AGDT 20KA 2 IN-LINE16 - Immediate$287.04View Details
GDT 230 V 20KA 2 IN-LINE3402.17.CGDT 230 V 20KA 2 IN-LINE0 - Immediate$244.02View Details
GDT  20KA 2 IN-LINE3402.17.KGDT 20KA 2 IN-LINE0 - Immediate$248.60View Details
GDT  20KA 2 IN-LINE3402.18.AGDT 20KA 2 IN-LINE0 - Immediate$244.02View Details
GDT 230 V 20KA 2 IN-LINE3402.26.0002GDT 230 V 20KA 2 IN-LINE0 - Immediate$238.58View Details
GDT 230 V 20KA 2 IN-LINE3402.26.0004GDT 230 V 20KA 2 IN-LINE0 - Immediate$244.65View Details
GDT 90 V 20KA 2 IN-LINE3402.26.0006-EXGDT 90 V 20KA 2 IN-LINE0 - Immediate$247.66View Details
GDT 230 V 20KA 2 IN-LINE3402.27.0001GDT 230 V 20KA 2 IN-LINE0 - ImmediateSee Page for PricingView Details
GDT  20KA 2 IN-LINE3402.41.0037GDT 20KA 2 IN-LINE0 - Immediate$311.06View Details
GDT  20KA 2 IN-LINE3402.41.0038GDT 20KA 2 IN-LINE0 - Immediate$311.06View Details
Published: 2025-10-21