2026

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oH
V SC
AV ER OM
AI SIO PL
LA N IA
BL S NT
E
Features
Applications
■ Balanced TRIGARD®
■ Telecommunications
■ Approximately 8 mm diameter, 11 mm long
■ Industrial electronics
■ UL Recognized
■ Commercial electronics
■ Custom configurations 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
DC Sparkover ±20 % @ 100 V/s
Impulse Sparkover
100 V/μs
1000 V/μs
2026-07
2026-09
2026-15
2026-20
2026-23
2026-25
2026-26
75 V
90 V
150 V
200 V
230 V
250 V
260V1
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
(1)
Model No.
Characteristic
DC Sparkover ±20 % @ 100 V/s
Impulse Sparkover
100 V/μs
1000 V/μs
(1)
2026-30
2026-35
2026-40
2026-42
2026-47
2026-60
300 V
350 V
400 V
420 V
470 V
600 V
550 V
775 V
625 V
875 V
675 V
925 V
725 V
1000 V
800 V
1100 V
925 V
1250 V
(1)
Impulse Sparkover voltage is defined as typical values of distribution.
Impulse Transverse Delay.............................................1000 V/μs ................................................................. < 75 ns
Insulation Resistance ...................................................100 V (50 V for Model 2026–07 & 2026-09) ............. > 1010 Ω
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 (3) ...............................................>135 V, (52 V for Model 2026-07 & 2026-09, ........... < 150 ms
80 V for Model 2026-15)
Impulse Discharge Current ...........................................40000 A, 8/20 μs (4) .................................................. 1 operation minimum
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 (4) ............................................. 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
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:
• 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.
• Sparkover limits after life ±25 %, IR >108Ω (-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.
DC Sparkover may exceed ±25 % after discharge, but will continue to protect without venting.
(4)
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifications 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 specific applications.
2026 Series - 3-Pole Gas Discharge Tube
Product Dimensions (additional lead form configurations available upon request)
2026-XX-A
DIA.
2.5 ± 0.25
(.098 ± .010)
2026-XX-C4
7.9 ± 0.3
DIA.
(.311 ± .012)
1.53 ± 0.1
(.060 ± .004)
7.5 ± 0.4
(.295 ± .016)
DIA.
9.0 ± 0.2
(.354 ± .008)
7.8 ± 0.3
DIA.
(.307 ± .012)
0.8 ± 0.3
(.032 ± .012)
11.83 ± 0.6
(.466 ± .024)
13.5 ± 0.4
(.531 ± .016)
1.0 ± 0.04
(.039 ± .002)
DIA.
5.85 ± 0.6
(.230 ± .024)
5.85 ± 0.6
(.230 ± .024)
2026-XX-A1
7.9 ± 0.3
(.311 ± .012)
DIA.
11.3 ± 0.4
(.445 ± .016)
2026-XX-C
1.0 ± 0.08 mm (.039 ± .002 in.) dia. lead wire
DIA.
7.9 ± 0.2
(.311 ± .008)
11.3 ± 0.4
(.449 ± .016)
30.5 ± 0.4
(1.201 ± .016)
LONG
2 PLCS.
1.0 ± 0.04
(.039 ± .002)
DIA.
0.85 ± 0.2
(.033 ± .008)
2026-XX-C2
7.9 ± 0.3
(.311 ± .012)
DIA.
DIA.
1.0 ± 0.04
(.039 ± .002)
13.0 ± 0.8
(.511 ± .031)
7.5 ± 0.4
(.295 ± .016)
15.4 ± 0.8
(.606 ± .032)
1.0 ± 0.04
(.039 ± .002)
DIA.
4.4 ± 0.3
(.173 ± .012)
4.4 ± 0.3
(.173 ± .012)
7.5 ± 0.3
(.295 ± .012)
FAIL-SHORT CONFIGURATION
2026-XX-C2F SHOWN
8.1 ± 0.3
(.319 ± .012)
4.5 ± 0.3
(.177 ± .012)
9.6 ± 0.4
(.378 ± .016)
2026-XX-C3
7.9 ± 0.3
DIA.
(.311 ± .012)
7.5 ± 0.4
(.295 ± .016)
1.0 ± 0.04
(.039 ± .002)
DIA.
4.7 ± 0.3
(.185 ± .012)
4.7 ± 0.3
(.185 ± .012)
13.5 ± 0.4
(.531 ± .016)
DIMENSIONS:
MM
(INCHES)
UNITS WITH LEADS ARE BASED ON THE
2026-XX-A1 BODY.
4.5 ± 0.3
(.177 ± .012)
Specifications 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 specific applications.
2026 Series - 3-Pole Gas Discharge Tube
How to Order
Packaging Specifications
2026 - nn - x n F LF
Model Number
Designator
Standard Packaging Quantity
Model
Voltage (Divided by 10)
07 = 75 V
30 = 300 V
09 = 90 V
35 = 350 V
15 = 150 V
40 = 400 V
20 = 200 V
42 = 420 V
23 = 230 V
47 = 470 V
25 = 250 V
60 = 600 V
26 = 260 V
Leads
A = None
C = 1 mm
Bulk (Bag)
Tray
Box
2026-XX-A
250
1000
2026-XX-A1
250
1000
2026-XX-C
50
300
2026-XX-C2
100
900
2026-XX-C3
100
900
2026-XX-C4
100
900
Lead Shape
(See Product Dimension Drawings)
Fail-Short Option
Blank = Standard Product
F=
With Fail-Short Mechanism
RoHS Compliant Option
Blank = Standard Product
LF = RoHS Compliant Product
Specifications 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 specific applications.
3312
- 2- 3-Pole
mm SMD
Trimming
Potentiometer
2026
Series
Gas Discharge
Tube
Switch-Grade Fail-short Device Shorting Curve 2026-XX-XF
30.0
Current (A) (ELTGS)
20.0
10.0
5.0
1.0
0.5
0.1
1
10
100
1000
Seconds
ELTGS = Each Line to Ground Simultaneously
NOTE: When using a GDT fail-short device, it is imperative that all components associated and
connected to the GDT with failsafe be tested in their respective completely integrated environment
(finished product) to assure desired operation.
REV. 11/15
Specifications 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 specific applications.
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