Features
Applications
■ Telecommunications
■ Balanced TRIGARD®
■ Approximately 8 mm diameter, 11 mm long ■ Industrial electronics
■ UL Recognized
■ Custom configurations available
■ High surge current rating
■ Commercial electronics
■ Consumer electronics
■ 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.
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)
ribution.
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...........................................40000 A, 8/20 μs (3) .................................................. 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 (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
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 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.
*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. Users should verify actual device performance in their specific
applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the
last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
WARNING Cancer and Reproductive Harm
www.P65Warnings.ca.gov
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