Features Applications n Balanced TRIGARD® n Telecommunications n Approximately 8 mm diameter, 11 mm long n Industrial electronics n UL Recognized n Commercial electronics n Custom configurations available n Consumer electronics 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. Model No. Characteristic 2026-07 2026-09 2026-15 2026-20 2026-23 2026-25 2026-26 DC Sparkover ±20 % @ 100 V/s (1) 75 V 90 V 150 V 200 V 230 V 250 V 260 V Impulse Sparkover (2) 100 V/µs 275 V 275 V 350 V 425 V 450 V 475 V 475 V 1000 V/µs 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 (1) 300 V 350 V 400 V 420 V 470 V 600 V Impulse Sparkover (2) 100 V/µs 550 V 625 V 675 V 725 V 800 V 925 V 1000 V/µs 775 V 875 V 925 V 1000 V 1100 V 1250 V (1) In ionized mode. (2) 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 ...........................................20000 A, 8/20 µs (4) .................................................. 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 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 (3) Network applied. (4) DC Sparkover may exceed ±25 % after discharge, but will continue to protect without venting. *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. WARNING Cancer and Reproductive Harm The products described herein and this document are subject to specific legal disclaimers as set forth www.P65Warnings.ca.gov on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.

2026 Series - 3-Pole Gas Discharge Tube Product Dimensions (additional lead form configurations available upon request) 2026-XX-A1 2026-XX-C4 7.9 ± 0.3 7.9 ± 0.3 DIA. (.311 ± .012) 11.3 ± 0.4 (.311 ± .012) DIA. (.445 ± .016) 7.5 ± 0.4 (.295 ± .016) 13.5 ± 0.4 1.0 ± 0.04 (.531 ± .016) (.039 ± .002) DIA. 1.0 ± 0.04 1.0 ± 0.04 0.85 ± 0.2 (.039 ± .002) (.039 ± .002) (.033 ± .008) 5.85 ± 0.6 5.85 ± 0.6 (.230 ± .024) (.230 ± .024) 2026-XX-C2 7.9 ± 0.3 (.311 ± .012) 13.0 ± 0.8 DIA. (.511 ± .031) 2026-XX-C 1.0 ± 0.08 mm (.039 ± .002 in.) dia. lead wire 7.5 ± 0.4 DIA. 30.5 ± 0.4 (.295 ± .016) 7.9 ± 0.2 (.311 ± .008) 11.3 ± 0.4 (1.201 ± .016) 15.4 ± 0.8 (.449 ± .016) LONG (.606 ± .032) 2 PLCS. 1.0 ± 0.04 (.039 ± .002) 1.0 ± 0.04 (.039 ± .002) 4.4 ± 0.3 4.4 ± 0.3 (.173 ± .012) (.173 ± .012) 1.0 ± 0.04 7.5 ± 0.3 (.039 ± .002) (.295 ± .012) 30 LONG 2026-XX-C3 2 PLCS. 7.9 ± 0.3 DIA. (.311 ± .012) FAIL-SHORT CONFIGURATION 2026-XX-C2F SHOWN 7.5 ± 0.4 8.1 ± 0.3 (.295 ± .016) (.319 ± .012) 13.5 ± 0.4 1.0 ± 0.04 (.531 ± .016) 1.0 DIA. 7.5 (.039 ± .002) 1.0 ± 0.04 (.039 ± .002) 4.7 ± 0.3 9.6 ± 0.4 (.185 ± .012) 4.7 ± 0.3 (.378 ± .016) (.185 ± .012) MM DIMENSIONS: (INCHES) UNITS WITH LEADS ARE BASED ON THE 2026-XX-A1 BODY. 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.

2026 Series - 3-Pole Gas Discharge Tube How to Order Packaging Specifications 2026 - nn - x n F LF Standard Packaging Quantity Model Number Model Bulk (Bag) Tray Box Designator Voltage (Divided by 10) 2026-XX-A1 250 1000 07 = 75 V 30 = 300 V 09 = 90 V 35 = 350 V 2026-XX-C 50 300 15 = 150 V 40 = 400 V 2026-XX-C2 100 1000 20 = 200 V 42 = 420 V 23 = 230 V 47 = 470 V 2026-XX-C3 100 1000 25 = 250 V 60 = 600 V 26 = 260 V 2026-XX-C4 100 1000 Leads A = None C = 1 mm 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 Agency Recognition / Industry Standards Agency References UL 497B Recognized Component, Category QVGQ2, File E153537 UL 497 Recognized Component, Category QVGV2, File E53117 Telcordia GR-974-CORE/ 2026 Series devices, as applicable, are tested to GR requirements for primary protectors GR-1361-CORE Additional Information Click these links for more information: PRODUCT TECHNICAL INVENTORY SAMPLES LIBRARY 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.

20236 3S1er2ie -s 2- 3m-Pmole S GMasD D Tisrcimhamrgien Tgu bPeo tentiometer Switch-Grade Fail-short Device Shorting Curve 2026-XX-XF 30.0 20.0 10.0 ) S G T L E 5.0 ( ) A ( t n e r r u C 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. G 01/21 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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