Features Applications
Balanced TRIGARD Telecommunications
Approximately 8 mm diameter, 11 mm long Industrial electronics
UL Recognized Commercial electronics
Custom congurations available Consumer electronics
High surge current rating Aircraft and military electronics
Stable breakdown throughout life
RoHS compliant* version available
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.
Characteristic
2026-07 2026-09 2026-15 2026-20 2026-23 2026-25 2026-26
DC Sparkover 20 % @ 100 V/s 75 V 90 V 150 V 200 V 230 V 250 V 260 V
(1)
Impulse Sparkover
100 V/s 275 V 275 V 350 V 425 V 450 V 475 V 475 V
1000 V/s 700 V 600 V 575 V 625 V 650 V 700 V 700 V
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
(1)
Impulse Sparkover
100 V/s 550 V 625 V 675 V 725 V 800 V 925 V
1000 V/s 775 V 875 V 925 V 1000 V 1100 V 1250 V
(1)
ribution.
Impulse Transverse Delay .............................................1000 V/ s .................................................................< 75 ns
10
Insulation Resistance ...................................................100 V (50 V for Model 202607 & 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
(2)
DC Holdover Voltage ...............................................>135 V, (52 V for Model 2026-07 & 2026-09, ...........< 150 ms
80 V for Model 2026-15)
(3)
Impulse Discharge Current ...........................................40000 A, 8/20 s .................................................. 1 operation minimum
20000 A, 8/20 s ...................................................... > 10 operations
5000 A, 10/350 s ................................................... 1 operation
1000 A, 10/1000 s .................................................> 400 operations
(3)
Alternating Discharge Current ......................................130 Arms, 11 cycles ............................................. 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
............................................................................................................................... 6
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 (-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.
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specications are subject to change without notice. Users should verify actual device performance in their specic
WARNING Cancer and Reproductive Harm
applications. The products described herein and this document are subject to specic legal disclaimers as set forth on the
www.P65Warnings.ca.gov
last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
*RoHS COMPLIANT
VERSIONS
AVAILABLE
2026 Series - 3-Pole Gas Discharge Tube
2026-XX-A 2026-XX-C4
7.9 0.3
DIA.
1.53 0.1
DIA.
2.5 0.25
(.311 .012)
(.060 .004)
(.098 .010)
7.5 0.4
(.295 .016)
0.8 0.3
13.5 0.4
9.0 0.2 1.0 0.04
(.032 .012)
DIA. (.531 .016)
(.354 .008)
(.039 .002)
11.83 0.6
7.8 0.3 DIA.
DIA. (.466 .024)
(.307 .012)
5.85 0.6
5.85 0.6
(.230 .024)
(.230 .024)
2026-XX-A1
7.9 0.3
(.311 .012) 11.3 0.4 2026-XX-C
DIA.
(.445 .016)
1.0 0.08 mm (.039 .002 in.) dia. lead wire
DIA.
30.5 0.4
7.9 0.2
(1.201 .016)
11.3 0.4
(.311 .008)
LONG
(.449 .016)
2 PLCS.
1.0 0.04
0.85 0.2
(.039 .002)
(.033 .008)
DIA.
2026-XX-C2
1.0 0.04
7.5 0.3
DIA.
(.039 .002)
7.9 0.3 (.295 .012)
13.0 0.8
(.311 .012)
(.511 .031)
DIA.
7.5 0.4
FAIL-SHORT CONFIGURATION
(.295 .016)
2026-XX-C2F SHOWN
15.4 0.8
8.1 0.3
1.0 0.04
(.606 .032)
(.319 .012)
(.039 .002)
DIA.
4.5 0.3
4.4 0.3 (.177 .012)
(.173 .012)
4.4 0.3
(.173 .012)
9.6 0.4
(.378 .016)
2026-XX-C3
7.9 0.3
DIA.
(.311 .012)
MM
DIMENSIONS:
7.5 0.4
(INCHES)
(.295 .016)
UNITS WITH LEADS ARE BASED ON THE
13.5 0.4
1.0 0.04
(.531 .016)
2026-XX-A1 BODY.
(.039 .002)
DIA.
4.5 0.3
4.7 0.3 (.177 .012)
(.185 .012)
4.7 0.3
(.185 .012)
Specications are subject to change without notice.
Users should verify actual device performance in their specic applications.
The products described herein and this document are subject to specic legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.