Bourns 2018 FLAT® GDT Surge Arrestors

Bourns 2018 FLAT® Gas Discharge Tube (GDT) Surge Arrestors feature FLAT Technology that delivers a low-profile solution for high-density and height-restricted PCB applications. The Bourns 3-electrode 2018 surge arrestors are ITU K.12 Class III and IEC 61643-311 devices rated at 10kA on an 8/20µs waveform in an innovative flat-package design. The series is offered with DC breakdown voltages ranging from 90V to 500V and is available in horizontal surface-mount versions. Applications include telecom and industrial communications.


  • Bourns® FLAT® GDT technology
  • Flexible mounting options
  • Low profile, space-saving design
  • 10x 20kA 8/20µs rating
  • RoHS compliant


  • Telecom CPE
  • Industrial communications
  • Surge protective devices
  • High-density PCB assemblies


  • 90VDC to 500VDC voltage sparkover range (±20%)
  • >1GΩ insulation resistance
  • ~70V glow voltage at 10mA
  • ~10V arc voltage at >1A
  • <2.5pF capacitance at 1MHz
  • -55°C to +105°C temperature range
  • Moisture Sensitivity Level (MSL) 1
  • 3B ESD classification (>8000V)


Published: 2016-10-28 | Updated: 2022-03-11