Bourns 2011 Fast FLAT® GDT Surge Arrestors

Bourns 2011 Gas Discharge Tube (GDT) Surge Arrestors with FLAT® technology offer 2-electrodes in an innovative flat-package design. Bourns’ FLAT technology delivers a low-profile GDT solution for high-density and height-restricted PCB applications. These surge arrestors are designed as a surface mount device and offer a large flat surface, making the series suitable for high-speed pick and place using a vacuum head pickup.

Bourns 2011 GDTs are fast acting and designed for use with a Bourns® TBU® High-Speed Protector (HSP). The components limit a high rate of rise voltage transients to levels below the TBU device’s maximum voltage impulse rating (Vimp). The 2011 GDTs, along with the TBU HSP, are an ideal protection solution for RS-485 applications.


  • Large flat top surface and lighter weight, ideal for high-speed pick and place
  • Robust current rating
  • Long-term reliability and stable performance
  • Low leakage
  • Constant capacitance regardless of voltage
  • Low arc voltage
  • Significant height reduction compared to the standard 5mm SMD GDT
  • Voltage limiting suitable for sensitive equipment and for use with the TBU® High-Speed Protector
  • Halogen-free and RoHS Compliant


  • Telecom equipment
  • Industrial communications
  • Surge protective devices
  • High density PCB assemblies


  • 100V/s DC sparkover
    • 60V minimum
    • 350V maximum
  • 650V maximum impulse sparkover (5kV 1.2/50µs)
  • -40°C to +90°C operating temperature range
  • Moisture Sensitivity Level 1
  • 50V >10MΩ insulation resistance
  • 1MHz <2.9pF capacitance
Published: 2019-01-04 | Updated: 2023-03-14