Features Applications (R) Balanced TRIGARD 8 mm diameter, 11 mm long UL recognized Custom configurations available High surge current rating Stable breakdown throughout life Telecommunications Industrial electronics Commercial electronics Consumer electronics Automotive, aircraft, military electronics 2026 Series - 3-Pole Gas Discharge Tube Characteristics Test Methods per ITU-T (CCITT) K.12, IEEE C62.31, RUS PE-80, Telcordia GR 1361 Model No. Characteristic DC Sparkover 20 % @ 100 V/s Impulse Sparkover 100 V/s 1000 V/s 2026-07 2026-09 2026-15 2026-20 2026-23 2026-25 75 V 90 V 150 V 200 V 230 V 250 V1 275 V 700 V 275 V 600 V 350 V 575 V 425 V 625 V 450 V 650 V 475 V 700 V Model No. Characteristic DC Sparkover 20 % @ 100 V/s Impulse Sparkover 100 V/s 1000 V/s 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 Impulse Transverse Delay ................................. 1000 V/s ............................................................................ < 75 ns Insulation Resistance ........................................ 100 V (50 V for Model 2026-07 & 2026-09) ........................ > 1010 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 Voltage2 ....................................... >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 s3 .................................................................................................................. 1 operation minimum 20000 A, 8/20 s ................................................................. > 10 operations 1000 A, 10/1000 s ............................................................. > 400 operations Alternating Discharge Current ........................... 130 Arms, 11 cycles3 .......................................................................................................... 1 operation minimum 20 Arms, 1 s ........................................................................ > 10 operations Operating Temperature .................................................................................................................................... - 55 to +85 C Optional Switch-Grade Failsafe device available. 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 >10 8 (-25 %,+30 % for Model 2026-07, 2026-09 and 2026-60). 1 2 3 Tube meets BT requirement Type 14 A/1 (210-310 V). Network applied. DC Sparkover may exceed 25 % after discharge, but will continue to protect without venting. Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. 2026 Series - 3-Pole Gas Discharge Tube Product Dimensions 2026-XX-A 2026-XX-C -- 1.0mm (0.040 in.) dia. lead wire 2026-XX-CB -- 0.8mm (0.032 in.) dia. lead wire 2026-XX-C8 1.6 (.063) 30 (1.2) LONG 2 PLCS. 7.8 (.307) 7.5 (.29) 9.0 (.354) 0.6 (.024) 11.7 (.460) 1.0 DIA. (.04) 1.0 DIA. (.04) 7.5 (.29) 2026-XX-C13 2026-XX-A1 7.9 (.311) FAILSAFE CONFIGURATION 2026-XX-C2F SHOWN 7.5 (0.3) 11.2 REF. (.440) 8.1 (.32) 1.0 DIA. (.04) 5.5 (0.22) 1.0 DIA. (.04) 0.7 - 1.0 (.028 - .040) 4.4 MIN. (0.18) 5.5 (0.22) 9.8 (.38) 2026-XX-C14 2026-XX-C2 13.0 MAX. (.512) 7.5 .30 (.295 .012) 15.5 REF. (.610) 1.0 DIA. (.04) 4.5 MIN. (.177) 4.4 (.173) 4.4 (.173) DIMENSIONS = MILLIMETERS (INCHES) 1.0 (.04) DIA. REF. 6.6 +.25 / -.76 (.26 +.01/-.03) 6.6 +.25 / -.76 (.26 +.01/-.03) 2026-XX-C18 17.8 (.70) 2026-XX-C3 3.04 (.120) 7.5 (.295) 1.0 DIA. (.04) 4.5 MIN. (.177) 4.75 (.187) 1.0 DIA. (.04) 6.4 (.25) 3.93 (.155) 6.4 (.25) 4.75 (.187) Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. 2026 Series - 3-Pole Gas Discharge Tube Switch-Grade Failsafe 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 failsafe 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. 09/04 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.