Features Applications
Balanced TRIGARD Telecommunications
Approximately 8 mm diameter, 11 mm long Industrial electronics
UL recognized Commercial electronics
Custom con gurations available Consumer electronics
High surge current rating Automotive, aircraft, 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
1
DC Sparkover 20 % @ 100 V/s 75 V 90 V 150 V 200 V 230 V 250 V 260V
(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)
Impulse Sparkover voltage is de ned as typical values of distribution.
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
(3)
DC Holdover Voltage ...............................................>135 V, (52 V for Model 2026-07 & 2026-09, ...........< 150 ms
80 V for Model 2026-15)
(4)
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
(4)
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
Optional Switch-Grade Fail-short device available. Models with the optional Fail-Short assembly activate at low temperature (215 C 217 C)
when required. These models are designed to be soldered either manually or using a selective soldering process that does not exceed 210 C,
below the temperature that the Fail-Short assembly would activate.
Notes:
UL recognized component, UL File E153537.
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)
Tube meets BT requirement Type 14 A/1 (210-310 V).
(3)
Network applied.
(4)
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.
Speci cations are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their speci c applications.
*RoHS COMPLIANT
VERSIONS
AVAILABLE
2026 Series - 3-Pole Gas Discharge Tube
Product Dimensions (additional lead form con gurations available upon request)
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)
Speci cations are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their speci c applications.