Features
n
Balanced TRIGARD
n
UL Recognized
Applications
®
n
Telecommunications
n
Industrial electronics
n
Commercial electronics
n
Consumer electronics
n
Automotive, aircraft, military electronics
n
Approximately 8 mm diameter, 11 mm long
n
Custom configurations available
n
High surge current rating
n
Stable breakdown throughout life
n
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.
Characteristic
DC Sparkover ±20 % @ 100 V/s
Impulse Sparkover
(1)
100 V/µs
1000 V/µs
Characteristic
DC Sparkover ±20 % @ 100 V/s
Impulse Sparkover
(1)
100 V/µs
1000 V/µs
(1)
Model No.
2026-07
75 V
275 V
700 V
2026-09
90 V
275 V
600 V
2026-30
300 V
550 V
775 V
2026-15
150 V
350 V
575 V
2026-35
350 V
625 V
875 V
2026-20
200 V
425 V
625 V
2026-40
400 V
675 V
925 V
2026-23
230 V
450 V
650 V
2026-42
420 V
725 V
1000 V
2026-25
250 V
475 V
700 V
2026-47
470 V
800 V
1100 V
2026-26
260 V
475 V
700 V
2026-60
600 V
925 V
1250 V
Model No.
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) ............. > 10
10
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
(2)
...............................................>135 V, (52 V for Model 2026-07 & 2026-09, ........... < 150 ms
80 V for Model 2026-15)
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.
• 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)
(3)
Network applied.
DC Sparkover may exceed ±25 % after discharge, but will continue to protect without venting.
WARNING Cancer and Reproductive Harm -
www.P65Warnings.ca.gov
*RoHS Directive 2015/863, Mar 31, 2015 and Annex.
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.
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