Features
Applications
nꢀ Telecommunications
nꢀ BalancedꢀTRIGARD®
nꢀ Approximatelyꢀ8ꢀmmꢀdiameter,ꢀ11ꢀmmꢀlong nꢀ Industrialꢀelectronics
nꢀ ULꢀRecognizedꢀ
nꢀ Commercialꢀelectronics
nꢀ Customꢀconfigurationsꢀavailable
nꢀ Highꢀsurgeꢀcurrentꢀrating
nꢀ Consumerꢀelectronics
nꢀ Automotive,ꢀaircraft,ꢀmilitaryꢀelectronics
nꢀ Stableꢀbreakdownꢀthroughoutꢀlife
nꢀ RoHSꢀcompliant*ꢀversionꢀavailable
2026 Series - 3-Pole Gas Discharge Tube
Characteristics
Test Methods per ITU-T K.12, IEEE C62.31 and IEC 61643-311 GDT standards.
Model No.
2026-20
200 V
Characteristic
2026-07
2026-09
2026-15
2026-23
2026-25
2026-26
DC Sparkover ±20 % @ 100 V/s
75 V
90 V
150 V
230 V
250 V
260 V
Impulse Sparkover (1)
100 V/µs
275 V
700 V
275 V
600 V
350 V
575 V
425 V
625 V
450 V
650 V
475 V
700 V
475 V
700 V
1000 V/µs
Model No.
Characteristic
2026-30
2026-35
2026-40
2026-42
2026-47
2026-60
DC Sparkover ±20 % @ 100 V/s
300 V
350 V
400 V
420 V
470 V
600 V
Impulse Sparkover (1)
100 V/µs
550 V
775 V
625 V
875 V
675 V
925 V
725 V
1000 V
800 V
1100 V
925 V
1250 V
1000 V/µs
(1)
Impulse Sparkover voltage is defined as typical values of distribution.
Impulse Transverse Delay.............................................1000 V/µs.................................................................< 75 ns
10
Insulation Resistance ...................................................100 V (50 V for Model 2026–07 & 2026-09).............> 10
Glow Voltage ................................................................10 mA.......................................................................~ 70 V
Arc Voltage ...................................................................1A.............................................................................~ 10 V
Glow-Arc Transition Current...........................................................................................................................< 0.5 A
Capacitance .................................................................1 MHz.......................................................................< 2 pF
DC Holdover Voltage (2) ...............................................>135 V, (52 V for Model 2026-07 & 2026-09,...........< 150 ms
80 V for Model 2026-15)
Ω
Impulse Discharge Current...........................................20000 A, 8/20 µs...................................................... 10 operations
5000 A, 10/350 µs ................................................... 1 operation
1000 A, 10/1000 µs ................................................. 400 operations
Alternating Discharge Current......................................130 Arms, 11 cycles (3) ............................................. 1 operation minimum
20 Arms, 1 s............................................................. 10 operations
Operation and Storage Temperature.............................................................................................................. -40 to +90 °C
Climatic Category (IEC 60068-1).................................................................................................................... 40/ 90/ 21
Moisture Sensitivity Level...............................................................................................................................
1
ESD Classification (HBM)............................................................................................................................... N/A
An optional Switch-Grade Fail-Short device is available. The optional Fail-Short assembly will activate at a temperature of 215 °C – 217 °C
to provide a high conductive path to ground in case of a thermal overload. GDTs equipped with the optional Fail-Short device should be
soldered either manually at a temperature that is below the activation temperature of the Fail-Short mechanism, or using a selective soldering
process that does not exceed 210 °C.
Notes:
• Model number marking on tube: 26-xxx V.
• The rated discharge current for TRIGARD® Gas Discharge Tubes is the total current equally divided between each line to ground.
8
• Sparkover limits after life ±25 %, IR >10 Ω (-25 %,+30 % for Model 2026-07, 2026-09 and 2026-60).
• Line to Line voltage is approximately 1.8 to 2 times the stated Line to Ground breakdown voltage.
• At delivery AQL 0.65 Level II, DIN ISO 2859
(2) Network applied.
(3) DC Sparkover may exceed ±25 % after discharge, but will continue to protect without venting.
WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov
*RoHSꢀDirectiveꢀ2015/863,ꢀMarꢀ31,ꢀ2015ꢀandꢀAnnex.
Specificationsꢀareꢀsubjectꢀtoꢀchangeꢀwithoutꢀnotice.
Usersꢀshouldꢀverifyꢀactualꢀdeviceꢀperformanceꢀinꢀtheirꢀspecificꢀapplications.ꢀ
Theꢀproductsꢀdescribedꢀhereinꢀandꢀthisꢀdocumentꢀareꢀsubjectꢀtoꢀspecificꢀlegalꢀdisclaimersꢀasꢀsetꢀforthꢀonꢀtheꢀlastꢀpageꢀofꢀthisꢀdocument,ꢀandꢀatꢀwww.bourns.com/docs/legal/disclaimer.pdf.
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