Gas Discharge Tubes

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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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) Filter the results in the table by unit price based on your quantity.	Qty.	Series	Peak Pulse Current	DC Sparkover	Number of Electrodes	Termination Style	Failsafe Protection Y/N	Diameter	Length	Minimum Operating Temperature	Maximum Operating Temperature	Packaging
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 75V 2POLE SMT GDT GTCS23-750M-R01-2 Littelfuse 1: 0,843 € 23.275In Stock 16.000Expected 11/26/2026	Mfr. Part No. GTCS23-750M-R01-2 Mouser Part No 650-GTCS23-750M-R012	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 75V 2POLE SMT GDT Learn More about Littelfuse gas discharge tubes	Datasheet	23.275In Stock 16.000Expected 11/26/2026	Cut Tape 0,843 € 0,774 € 0,642 € 0,593 € View Reel 0,456 € 0,532 € 0,491 € 0,488 € 0,456 € MouseReel Available	Min.: 1 Mult.: 1 : 2.000	GTCx2-R	1 kA	75 V	2 Electrode	SMD/SMT	Failsafe Not Protected	3 mm	4.5 mm	- 40 C	+ 90 C	Reel, Cut Tape, MouseReel
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 75V 2.5KA 2POLE GTCS25-750M-R02-2 Littelfuse 1: 2,70 € 3.233In Stock 3.000Expected 10/29/2026	Mfr. Part No. GTCS25-750M-R02-2 Mouser Part No 650-GTCS25-750MR02-2	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 75V 2.5KA 2POLE Learn More about Littelfuse gas discharge tubes	Datasheet	3.233In Stock 3.000Expected 10/29/2026	Cut Tape 2,70 € 2,24 € 2,07 € 1,72 € View Reel 1,35 € 1,58 € 1,44 € 1,35 € 1,35 € MouseReel Available	Min.: 1 Mult.: 1 : 1.500	GTCx2-R	2.5 kA	75 V	2 Electrode	SMD/SMT	Failsafe Not Protected	5 mm	4.4 mm	- 40 C	+ 90 C	Reel, Cut Tape, MouseReel
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 75V 3POLE SMT GDT GTCS35-750M-R05 Littelfuse 1: 1,42 € 5.323In Stock	Mfr. Part No. GTCS35-750M-R05 Mouser Part No 650-GTCS35-750M-R05	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 75V 3POLE SMT GDT Learn More about Littelfuse gas discharge tubes	Datasheet	5.323In Stock	1,42 € 1,32 € 1,09 € 1,01 € View 0,903 € 0,831 € 0,813 €	Min.: 1 Mult.: 1	GTCx3-R	5 kA	75 V	3 Electrode	SMD/SMT	Failsafe Not Protected	5 mm	7.6 mm	- 40 C	+ 90 C	Tray
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 90V 3POLE SMT GDT GTCS36-900M-R10-2 Littelfuse 1: 2,29 € 4.808In Stock	Mfr. Part No. GTCS36-900M-R10-2 Mouser Part No 650-GTCS36-900M-R102	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 90V 3POLE SMT GDT Learn More about Littelfuse gas discharge tubes	Datasheet	4.808In Stock	Cut Tape 2,29 € 1,89 € 1,69 € 1,63 € Reel 1,44 € View 1,52 € 1,10 € MouseReel Available	Min.: 1 Mult.: 1 : 750	GTCx3-R	10 kA	90 V	3 Electrode	SMD/SMT	Failsafe Not Protected	6 mm	8.2 mm	- 40 C	+ 90 C	Reel, Cut Tape, MouseReel
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 140V 8mm 20KA 2POLE GTCA28-141M-R20 Littelfuse 1: 2,94 € 49In Stock	Mfr. Part No. GTCA28-141M-R20 Mouser Part No 650-GTCA28-141M-R20	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 140V 8mm 20KA 2POLE Learn More about Littelfuse gas discharge tubes	Datasheet	49In Stock	2,94 € 2,44 € 2,25 € 1,87 € View 1,72 € 1,51 € 1,48 €	Min.: 1 Mult.: 1	GTCx28-R	20 kA	140 V	2 Electrode	Axial	Failsafe Not Protected	8 mm	6 mm	- 40 C	+ 90 C	Tray
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 600V 2POLE AXIAL LEADS GDT GTCA28-601M-R10 Littelfuse 1: 2,33 € 29In Stock	Mfr. Part No. GTCA28-601M-R10 Mouser Part No 650-GTCA28-601M-R10	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 600V 2POLE AXIAL LEADS GDT Learn More about Littelfuse gas discharge tubes	Datasheet	29In Stock	2,33 € 1,94 € 1,79 € 1,48 € View 1,37 € 1,23 € 1,14 €	Min.: 1 Mult.: 1	GTCx28-R	10 kA	600 V	2 Electrode	Axial	Failsafe Not Protected	8 mm	6 mm	- 40 C	+ 90 C	Tray
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 400V 2POLE AXIAL LEADS GDT GTCA25-401M-R02 Littelfuse 1: 2,82 € 190In Stock	Mfr. Part No. GTCA25-401M-R02 Mouser Part No 650-GTCA25-401M-R02	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 400V 2POLE AXIAL LEADS GDT Learn More about Littelfuse gas discharge tubes	Datasheet	190In Stock	2,82 € 2,35 € 2,17 € 1,80 € View 1,66 € 1,49 € 1,41 €	Min.: 1 Mult.: 1	GTCx2-R	2.5 kA	400 V	2 Electrode	Axial	Failsafe Protected	5 mm	5 mm	- 40 C	+ 90 C	Tray
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 500V 2POLE AXIAL LEADS GDT GTCA25-501M-R02 Littelfuse 1: 2,52 € 434In Stock	Mfr. Part No. GTCA25-501M-R02 Mouser Part No 650-GTCA25-501M-R02	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 500V 2POLE AXIAL LEADS GDT Learn More about Littelfuse gas discharge tubes	Datasheet	434In Stock	2,52 € 2,09 € 1,94 € 1,61 € View 1,48 € 1,33 € 1,25 €	Min.: 1 Mult.: 1	GTCx2-R	2.5 kA	500 V	2 Electrode	Axial	Failsafe Protected	5 mm	5 mm	- 40 C	+ 90 C	Tray
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 75V 2POLE AXIAL LEADS GDT GTCA25-750M-R02 Littelfuse 1: 2,52 € 17In Stock 1.000Expected 1/28/2027	Mfr. Part No. GTCA25-750M-R02 Mouser Part No 650-GTCA25-750M-R02	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 75V 2POLE AXIAL LEADS GDT Learn More about Littelfuse gas discharge tubes	Datasheet	17In Stock 1.000Expected 1/28/2027	2,52 € 2,09 € 1,94 € 1,61 € View 1,48 € 1,33 € 1,25 €	Min.: 1 Mult.: 1	GTCx2-R	2.5 kA	75 V	2 Electrode	Axial	Failsafe Protected	5 mm	5 mm	- 40 C	+ 90 C	Tray
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 350V 2POLE AXIAL LEADS GDT GTCA26-351M-R05 Littelfuse 1: 2,82 € 634In Stock	Mfr. Part No. GTCA26-351M-R05 Mouser Part No 650-GTCA26-351M-R05	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 350V 2POLE AXIAL LEADS GDT Learn More about Littelfuse gas discharge tubes	Datasheet	634In Stock	2,82 € 2,35 € 2,17 € 1,80 € View 1,66 € 1,49 € 1,41 €	Min.: 1 Mult.: 1	GTCx2-R	5 kA	350 V	2 Electrode	Axial	Failsafe Not Protected	6 mm	4.2 mm	- 40 C	+ 90 C	Tray
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 3600V 2POLE AXIAL LEAD HV GDT GTCA28-362M-R03 Littelfuse 1: 4,40 € 369In Stock 1.000Expected 3/10/2027	Mfr. Part No. GTCA28-362M-R03 Mouser Part No 650-GTCA28-362M-R03	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 3600V 2POLE AXIAL LEAD HV GDT Learn More about Littelfuse GTCA28 gdts	Datasheet	369In Stock 1.000Expected 3/10/2027	4,40 € 3,98 € 3,67 € 3,04 € View 2,61 € 2,49 € 2,06 €	Min.: 1 Mult.: 1	GTCx28-R	3 kA	3.6 kV	2 Electrode	Axial	Failsafe Not Protected	8 mm	6 mm	- 40 C	+ 90 C	Tray
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 470V 2POLE AXIAL LEADS GDT GTCA28-471M-R10 Littelfuse 1: 2,33 € 701In Stock	Mfr. Part No. GTCA28-471M-R10 Mouser Part No 650-GTCA28-471M-R10	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 470V 2POLE AXIAL LEADS GDT Learn More about Littelfuse gas discharge tubes	Datasheet	701In Stock	2,33 € 1,94 € 1,79 € 1,48 € View 1,37 € 1,29 € 1,14 €	Min.: 1 Mult.: 1	GTCx28-R	10 kA	470 V	2 Electrode	Axial	Failsafe Not Protected	8 mm	6 mm	- 40 C	+ 90 C	Tray
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 75V 2POLE AXIAL LEADS GDT GTCA28-750M-R10 Littelfuse 1: 2,33 € 887In Stock	Mfr. Part No. GTCA28-750M-R10 Mouser Part No 650-GTCA28-750M-R10	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 75V 2POLE AXIAL LEADS GDT Learn More about Littelfuse gas discharge tubes	Datasheet	887In Stock	2,33 € 1,94 € 1,79 € 1,48 € View 1,37 € 1,23 € 1,14 €	Min.: 1 Mult.: 1	GTCx28-R	10 kA	75 V	2 Electrode	Axial	Failsafe Not Protected	8 mm	6 mm	- 40 C	+ 90 C	Tray
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 800V 2POLE AXIAL LEADS HV GDT GTCA28-801M-R05 Littelfuse 1: 3,14 € 93In Stock	Mfr. Part No. GTCA28-801M-R05 Mouser Part No 650-GTCA28-801M-R05	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 800V 2POLE AXIAL LEADS HV GDT Learn More about Littelfuse gas discharge tubes	Datasheet	93In Stock	3,14 € 2,61 € 2,41 € 2,00 € View 1,84 € 1,65 € 1,52 € 1,49 €	Min.: 1 Mult.: 1	GTCx28-R	5 kA	800 V	2 Electrode	Axial	Failsafe Not Protected	8 mm	6 mm	- 40 C	+ 90 C	Tray
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 75V 3POLE AXIAL LEADS GDT GTCA35-750M-R05 Littelfuse 1: 2,61 € 414In Stock	Mfr. Part No. GTCA35-750M-R05 Mouser Part No 650-GTCA35-750M-R05	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 75V 3POLE AXIAL LEADS GDT Learn More about Littelfuse gas discharge tubes	Datasheet	414In Stock	2,61 € 2,17 € 2,00 € 1,99 € View 1,70 € 1,60 € 1,30 €	Min.: 1 Mult.: 1	GTCx3-R	5 kA	75 V	3 Electrode	Axial	Failsafe Not Protected	5 mm	7.6 mm	- 40 C	+ 90 C	Tray
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 140V 2POLE CHIP TYPE SMT GTCC23-141M-R01-2 Littelfuse 1: 1,06 € 1.891In Stock	Mfr. Part No. GTCC23-141M-R01-2 Mouser Part No 650-GTCC23-141MR01-2	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 140V 2POLE CHIP TYPE SMT Learn More about Littelfuse gas discharge tubes	Datasheet	1.891In Stock	Cut Tape 1,06 € Reel 1,06 € MouseReel Available	Min.: 1 Mult.: 1 : 2.000	GTCx2-R	1 kA	140 V	2 Electrode	SMD/SMT	Failsafe Not Protected	3 mm	4.5 mm	- 40 C	+ 90 C	Reel, Cut Tape, MouseReel
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 150V 2POLE CHIP TYPE SMT GTCC23-151M-R01-2 Littelfuse 1: 1,16 € 1.690In Stock 2.000Expected 1/26/2027	Mfr. Part No. GTCC23-151M-R01-2 Mouser Part No 650-GTCC23-151MR01-2	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 150V 2POLE CHIP TYPE SMT Learn More about Littelfuse gas discharge tubes	Datasheet	1.690In Stock 2.000Expected 1/26/2027	Cut Tape 1,16 € 1,08 € 0,894 € 0,761 € Reel 0,573 € View 0,726 € 0,631 € 0,581 € 0,531 € MouseReel Available	Min.: 1 Mult.: 1 : 2.000	GTCx2-R	1 kA	150 V	2 Electrode	SMD/SMT	Failsafe Not Protected	3 mm	4.5 mm	- 40 C	+ 90 C	Reel, Cut Tape, MouseReel
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 300V 1KA 20% 2-POLE SMD GTCC23-301M-R01-2 Littelfuse 1: 0,972 € 917In Stock	Mfr. Part No. GTCC23-301M-R01-2 Mouser Part No 650-GTCC23-301M-R012	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 300V 1KA 20% 2-POLE SMD Learn More about Littelfuse gas discharge tubes	Datasheet	917In Stock	Cut Tape 0,972 € 0,894 € 0,739 € 0,682 € View Reel 0,531 € 0,613 € 0,569 € 0,531 € MouseReel Available	Min.: 1 Mult.: 1 : 2.000	GTCx2-R	1 kA	300 V	2 Electrode	SMD/SMT	Failsafe Not Protected	3 mm	4.5 mm	- 40 C	+ 90 C	Reel, Cut Tape, MouseReel
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 400V 2POLE CHIP TYPE SMT GTCC23-401M-R01-2 Littelfuse 1: 0,972 € 1.487In Stock	Mfr. Part No. GTCC23-401M-R01-2 Mouser Part No 650-GTCC23-401MR01-2	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 400V 2POLE CHIP TYPE SMT Learn More about Littelfuse gas discharge tubes	Datasheet	1.487In Stock	Cut Tape 0,972 € 0,894 € 0,739 € 0,682 € View Reel 0,531 € 0,613 € 0,569 € 0,531 € MouseReel Available	Min.: 1 Mult.: 1 : 2.000	GTCx2-R	1 kA	400 V	2 Electrode	SMD/SMT	Failsafe Not Protected	3 mm	4.5 mm	- 40 C	+ 90 C	Reel, Cut Tape, MouseReel
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 500V 2POLE 4.5mm L GTCC23-501M-R01-2 Littelfuse 1: 1,08 € 1.064In Stock 2.000Expected 1/27/2027	Mfr. Part No. GTCC23-501M-R01-2 Mouser Part No 650-GTCC23-501MR01-2	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 500V 2POLE 4.5mm L Learn More about Littelfuse gas discharge tubes	Datasheet	1.064In Stock 2.000Expected 1/27/2027	Cut Tape 1,08 € 0,989 € 0,821 € 0,758 € View Reel 0,531 € 0,681 € 0,628 € 0,579 € 0,531 € MouseReel Available	Min.: 1 Mult.: 1 : 2.000	GTCx2-R	1 kA	500 V	2 Electrode	SMD/SMT	Failsafe Not Protected	3 mm	4.5 mm	- 40 C	+ 90 C	Reel, Cut Tape, MouseReel
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 75V 1KA 20% 2-POLE SMD GTCC23-750M-R01-2 Littelfuse 1: 0,972 € 13In Stock 6.000On Order	Mfr. Part No. GTCC23-750M-R01-2 Mouser Part No 650-GTCC23-750M-R012	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 75V 1KA 20% 2-POLE SMD Learn More about Littelfuse gas discharge tubes	Datasheet	13In Stock 6.000On Order On Order Ship Dates Mfr. No: GTCC23-750M-R01-2 Stock: 13 Can Dispatch Immediately On Order: 2.000 Expected 1/18/2027 4.000 Expected 2/9/2027 Factory Lead Time: 15 Weeks	Cut Tape 0,972 € 0,894 € 0,739 € 0,726 € Reel 0,573 € View 0,631 € 0,581 € 0,531 € MouseReel Available	Min.: 1 Mult.: 1 : 2.000	GTCx2-R	1 kA	75 V	2 Electrode	SMD/SMT	Failsafe Not Protected	3 mm	4.5 mm	- 40 C	+ 90 C	Reel, Cut Tape, MouseReel
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 90V 2POLE CHIP TYPE SMT GTCC23-900M-R01-2 Littelfuse 1: 1,02 € 270In Stock 12.000On Order	Mfr. Part No. GTCC23-900M-R01-2 Mouser Part No 650-GTCC23-900MR01-2	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 90V 2POLE CHIP TYPE SMT Learn More about Littelfuse gas discharge tubes	Datasheet	270In Stock 12.000On Order On Order Ship Dates Mfr. No: GTCC23-900M-R01-2 Stock: 270 Can Dispatch Immediately On Order: 4.000 Expected 11/5/2026 8.000 Expected 12/23/2026 Factory Lead Time: 15 Weeks	Cut Tape 1,02 € 0,946 € 0,783 € 0,722 € View Reel 0,531 € 0,649 € 0,604 € 0,569 € 0,531 € MouseReel Available	Min.: 1 Mult.: 1 : 2.000	GTCx2-R	1 kA	90 V	2 Electrode	SMD/SMT	Failsafe Not Protected	3 mm	4.5 mm	- 40 C	+ 90 C	Reel, Cut Tape, MouseReel
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 7MM 90V 3POLE RADIAL LEADS GDT GTCR37-900M-R10 Littelfuse 1: 2,80 € 357In Stock	Mfr. Part No. GTCR37-900M-R10 Mouser Part No 650-GTCR37-900M-R10	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 7MM 90V 3POLE RADIAL LEADS GDT Learn More about Littelfuse gas discharge tubes	Datasheet	357In Stock	2,80 € 2,32 € 2,13 € 1,84 € View 1,73 € 1,39 €	Min.: 1 Mult.: 1	GTCx3-R	10 kA	90 V	3 Electrode	Radial	Failsafe Not Protected	7.5 mm	11.5 mm	- 40 C	+ 90 C	Tray
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 350V 2POLE CHIP TYPE SMT GTCS23-351M-R01-2 Littelfuse 1: 0,894 € 10In Stock	Mfr. Part No. GTCS23-351M-R01-2 Mouser Part No 650-GTCS23-351MR01-2	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 350V 2POLE CHIP TYPE SMT Learn More about Littelfuse gas discharge tubes	Datasheet	10In Stock	Cut Tape 0,894 € 0,82 € 0,681 € 0,628 € View Reel 0,456 € 0,565 € 0,52 € 0,513 € 0,456 € MouseReel Available	Min.: 1 Mult.: 1 : 2.000	GTCx2-R	1 kA	350 V	2 Electrode	SMD/SMT	Failsafe Not Protected	3 mm	4.5 mm	- 40 C	+ 90 C	Reel, Cut Tape, MouseReel
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 230V 2POLE SMT GDT GTCS26-231M-R05-2 Littelfuse 1: 1,05 € 880In Stock	Mfr. Part No. GTCS26-231M-R05-2 Mouser Part No 650-GTCS26-231MR05-2	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 230V 2POLE SMT GDT Learn More about Littelfuse gas discharge tubes	Datasheet	880In Stock	Cut Tape 1,05 € 0,963 € 0,798 € 0,736 € View Reel 0,579 € 0,662 € 0,582 € 0,579 € MouseReel Available	Min.: 1 Mult.: 1 : 750	GTCx2-R	5 kA	230 V	2 Electrode	SMD/SMT	Failsafe Not Protected	6 mm	4.2 mm	- 40 C	+ 90 C	Reel, Cut Tape, MouseReel

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