Gas Discharge Tubes

Littelfuse Gas Discharge Tubes (GDTs) are designed for high-voltage transient surge protection in small devices. Littelfuse GDTs are designed to dissipate large amounts of energy and are ideal for lightning surge protection. GDTs are widely applied to outdoor telecommunications equipment. These Littelfuse devices are available in leaded and surface-mount configurations.

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Description Datasheet Availability Pricing (DKK) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
Peak Pulse Current
DC Sparkover
Number of Electrodes
Termination Style
Failsafe Protection Y/N
Diameter
Length
Minimum Operating Temperature
Maximum Operating Temperature
Packaging
Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Gas Discharge Tubes
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1.300
Mult.: 1.300

GTCx2-R 5 kA 250 V 2 Electrode Axial Failsafe Not Protected 6 mm 4.2 mm - 40 C + 90 C Tray
Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1.000
Mult.: 1.000

GTCx2-R 5 kA 300 V 2 Electrode Axial Failsafe Not Protected 6 mm 4.2 mm - 40 C + 90 C Tray
Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1.000
Mult.: 1.000

GTCx2-R 5 kA 600 V 2 Electrode Axial Failsafe Not Protected 6 mm 4.2 mm - 40 C + 90 C Tray
Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Gas Discharge Tubes
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1.000
Mult.: 1.000

GTCx2-R 5 kA 75 V 2 Electrode Axial Failsafe Not Protected 6 mm 4.2 mm - 40 C + 90 C Tray
Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 900V 6mm 5KA 2POLE
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 6.500
Mult.: 1.300
: 1.300

GTCx2-R 5 kA 90 V 2 Electrode Axial Failsafe Not Protected 6 mm 4.2 mm - 40 C + 90 C Reel
Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1.000
Mult.: 1.000
: 1.000

GTCx28-R 3 kA 1 kV 2 Electrode Axial Failsafe Not Protected 8 mm 6 mm - 40 C + 90 C Reel
Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 150V 2POLE AXIAL LEADS GDT
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1.000
Mult.: 1.000

GTCx28-R 5 kA 150 V 2 Electrode Axial Failsafe Not Protected 8 mm 6 mm - 40 C + 90 C Tray
Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 150V 2POLE AXIAL LEADS GDT
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1.000
Mult.: 1.000

GTCx28-R 20 kA 150 V 2 Electrode Axial Failsafe Not Protected 8 mm 6 mm - 40 C + 90 C Tray
Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 200V 2POLE AXIAL LEADS GDT
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1.000
Mult.: 1.000
GTCx28-R 5 kA 200 V 2 Electrode Axial Failsafe Not Protected 8 mm 6 mm - 40 C + 90 C Tray
Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Gas Discharge Tubes 8mm 230V AxialLeaded
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1.000
Mult.: 1.000
GTCx28-R 5 kA 230 V 2 Electrode Axial Failsafe Not Protected 8.2 mm 6.2 mm - 40 C + 90 C Tray
Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 230V 2POLE AXIAL LEADS GDT
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1.000
Mult.: 1.000

GTCx28-R 5 kA 230 V 2 Electrode Axial Failsafe Not Protected 8 mm 6 mm - 40 C + 90 C Tray
Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 230V 2POLE AXIAL LEADS GDT
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1.000
Mult.: 1.000

GTCx28-R 10 kA 230 V 2 Electrode Axial Failsafe Not Protected 8 mm 6 mm - 40 C + 90 C Tray
Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 230V 2POLE AXIAL LEADS GDT
Datasheet
1.000Factory Stock Available
More Info Available
Min.: 1.000
Mult.: 1.000

GTCx28-R 20 kA 230 V 2 Electrode Axial Failsafe Not Protected 8 mm 6 mm - 40 C + 90 C Tray
Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 2500V 2POLE AXIAL LEAD HV GDT
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1.000
Mult.: 1.000

GTCx28-R 3 kA 2.5 kV 2 Electrode Axial Failsafe Not Protected 8 mm 6 mm - 40 C + 90 C Tray
Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 2700V 2POLE AXIAL LEADS HV GDT
Datasheet
1.991Expected 11/09/2026
Min.: 1
Mult.: 1

GTCx28-R 3 kA 2.7 kV 2 Electrode Axial Failsafe Not Protected 8 mm 6 mm - 40 C + 90 C Tray
Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 300V 2POLE AXIAL LEADS GDT
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1.000
Mult.: 1.000

GTCx28-R 5 kA 300 V 2 Electrode Axial Failsafe Not Protected 8 mm 6 mm - 40 C + 90 C Tray
Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GTCA28-302M-R03-2
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1.000
Mult.: 1.000
: 1.000

GTCx28-R 3 kA 3000 V 2 Electrode Axial Failsafe Not Protected 0.8 mm 6.2 mm - 40 C + 90 C Reel
Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 350V 2POLE AXIAL LEADS GDT
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1.000
Mult.: 1.000

GTCx28-R 5 kA 350 V 2 Electrode Axial Failsafe Not Protected 8 mm 6 mm - 40 C + 90 C Tray
Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 400V 2POLE AXIAL LEADS GDT
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1.000
Mult.: 1.000

GTCx28-R 10 kA 400 V 2 Electrode Axial Failsafe Not Protected 8 mm 6 mm - 40 C + 90 C Tray
Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Gas Discharge Tubes
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 5.000
Mult.: 1.000

GTCx28-R 3 kA 4 kV 2 Electrode Axial Failsafe Not Protected 8 mm 6 mm - 40 C + 90 C Tray
Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 420V 2POLE AXIAL LEADS GDT
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1.000
Mult.: 1.000

GTCx28-R 5 kA 420 V 2 Electrode Axial Failsafe Not Protected 8 mm 6 mm - 40 C + 90 C Tray
Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 420V 2POLE AXIAL LEADS GDT
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 5.000
Mult.: 1.000
: 1.000

GTCx28-R 5 kA 420 V 2 Electrode Axial Failsafe Not Protected 8 mm 6 mm - 40 C + 90 C Reel
Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 470V 2POLE AXIAL LEADS GDT
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1.000
Mult.: 1.000

GTCx28-R 5 kA 470 V 2 Electrode Axial Failsafe Not Protected 8 mm 6 mm - 40 C + 90 C Tray
Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1.000
Mult.: 1.000

GTCx28-R 20 kA 470 V 2 Electrode Axial Failsafe Not Protected 8 mm 6 mm - 40 C + 90 C Tray
Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 500V 2POLE AXIAL LEADS GDT
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1.000
Mult.: 1.000

GTCx28-R 10 kA 500 V 2 Electrode Axial Failsafe Not Protected 8 mm 6 mm - 40 C + 90 C Tray