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 (USD) 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 6MM 90V 3POLE RADIAL LEADS GDT GTCR36-900M-R10 Littelfuse 1: $2.70 1,204In Stock	Mfr. Part # GTCR36-900M-R10 Mouser Part # 650-GTCR36-900M-R10	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 90V 3POLE RADIAL LEADS GDT Learn More about Littelfuse gas discharge tubes	Datasheet	1,204In Stock	$2.70 $2.07 $1.63 $1.54 View $1.48 $1.44 $1.41	Min.: 1 Mult.: 1	GTCx3-R	10 kA	90 V	3 Electrode	Radial	Failsafe Not Protected	6 mm	9.2 mm	- 40 C	+ 90 C	Tray
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 4000V 2POLE AXIAL LEAD HV GDT GTCA28-402M-R03 Littelfuse 1: $4.63 1,000In Stock	Mfr. Part # GTCA28-402M-R03 Mouser Part # 650-GTCA28-402M-R03	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 4000V 2POLE AXIAL LEAD HV GDT Learn More about Littelfuse GTCA28 gdts	Datasheet	1,000In Stock	$4.63 $3.54 $2.93 $2.70 $2.40	Min.: 1 Mult.: 1	GTCx28-R	3 kA	4 kV	2 Electrode	Axial	Failsafe Not Protected	8 mm	6 mm	- 40 C	+ 90 C	Tray
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 230V 2POLE CHIP TYPE SMT GTCC23-231M-R01-2 Littelfuse 1: $1.35 3,777In Stock	Mfr. Part # GTCC23-231M-R01-2 Mouser Part # 650-GTCC23-231MR01-2	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 230V 2POLE CHIP TYPE SMT Learn More about Littelfuse gas discharge tubes	Datasheet	3,777In Stock	Cut Tape $1.35 $1.04 $0.855 $0.778 $0.676 Reel $0.618 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	GTCx2-R	1 kA	230 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 8MM 75V 2POLE SMT GDT GTCS28-750M-R05-2 Littelfuse 1: $1.91 1,773In Stock	Mfr. Part # GTCS28-750M-R05-2 Mouser Part # 650-GTCS28-750MR05-2	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 75V 2POLE SMT GDT Learn More about Littelfuse gas discharge tubes	Datasheet	1,773In Stock	Cut Tape $1.91 $1.88 $1.83 Reel $1.45 $1.31 $1.24 MouseReel Available	Min.: 1 Mult.: 1 : 500	GTCx2-R	5 kA	75 V	2 Electrode	SMD/SMT	Failsafe Not Protected	8.2 mm	6 mm	- 40 C	+ 90 C	Reel, Cut Tape, MouseReel
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 90V 3POLE SMT GDT GTCS35-900M-R05-2 Littelfuse 1: $1.58 5,775In Stock	Mfr. Part # GTCS35-900M-R05-2 Mouser Part # 650-GTCS35-900MR05-2	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 90V 3POLE SMT GDT Learn More about Littelfuse gas discharge tubes	Datasheet	5,775In Stock	Cut Tape $1.58 $1.27 $1.05 $1.02 Reel $0.889 View $0.854 $0.85 $0.826 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	GTCx3-R	5 kA	90 V	3 Electrode	SMD/SMT	Failsafe Not Protected	5 mm	7.6 mm	- 40 C	+ 90 C	Reel, Cut Tape, MouseReel
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 3000V 2POLE AXIAL LEAD HV GDT GTCA28-302M-R03 Littelfuse 1: $2.83 978In Stock	Mfr. Part # GTCA28-302M-R03 Mouser Part # 650-GTCA28-302M-R03	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 3000V 2POLE AXIAL LEAD HV GDT Learn More about Littelfuse GTCA28 gdts	Datasheet	978In Stock	$2.83 $2.23 $1.96 $1.94 $1.93	Min.: 1 Mult.: 1	GTCx28-R	3 kA	3 kV	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-R05 Littelfuse 1: $2.86 848In Stock	Mfr. Part # GTCA28-601M-R05 Mouser Part # 650-GTCA28-601M-R05	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 600V 2POLE AXIAL LEADS GDT Learn More about Littelfuse gas discharge tubes	Datasheet	848In Stock	$2.86 $2.19 $1.81 $1.67 View $1.53 $1.50	Min.: 1 Mult.: 1	GTCx28-R	5 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 GTCR38-601M-R20 Littelfuse 1: $4.89 951In Stock	Mfr. Part # GTCR38-601M-R20 Mouser Part # 650-GTCR38-601M-R20	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Learn More about Littelfuse gas discharge tubes	Datasheet	951In Stock	$4.89 $3.75 $3.10 $2.86 $2.72	Min.: 1 Mult.: 1	GTCx3-R	20 kA	600 V	3 Electrode	Radial	Failsafe Not Protected	7.5 mm	10 mm	- 40 C	+ 90 C	Tray
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 90V2POLE SMT GDT GTCS25-900M-R02 Littelfuse 1: $2.61 3,661In Stock	Mfr. Part # GTCS25-900M-R02 Mouser Part # 650-GTCS25-900M-R02	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 90V2POLE SMT GDT Learn More about Littelfuse gas discharge tubes	Datasheet	3,661In Stock	$2.61 $2.00 $1.37 $1.32	Min.: 1 Mult.: 1	GTCx2-R	2.5 kA	90 V	2 Electrode	SMD/SMT	Failsafe Not Protected	5 mm	4.4 mm	- 40 C	+ 90 C	Tray
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 200V 2POLE CHIP TYPE SMT GTCC23-201M-R01-2 Littelfuse 1: $1.13 2,341In Stock	Mfr. Part # GTCC23-201M-R01-2 Mouser Part # 650-GTCC23-201MR01-2	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 200V 2POLE CHIP TYPE SMT Learn More about Littelfuse gas discharge tubes	Datasheet	2,341In Stock	Cut Tape $1.13 $0.858 $0.662 $0.558 Reel $0.54 View $0.557 $0.531 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2,000	GTCx2-R	1 kA	200 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 8MM 2100V 2POLE AXIAL LEAD HV GDT GTCA28-212M-R03 Littelfuse 1: $3.58 1,456In Stock	Mfr. Part # GTCA28-212M-R03 Mouser Part # 650-GTCA28-212M-R03	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 2100V 2POLE AXIAL LEAD HV GDT Learn More about Littelfuse GTCA28 gdts	Datasheet	1,456In Stock	$3.58 $2.74 $2.27 $2.09 View $1.99 $1.93	Min.: 1 Mult.: 1	GTCx28-R	3 kA	2.1 kV	2 Electrode	Axial	Failsafe Not Protected	8 mm	6 mm	- 40 C	+ 90 C	Tray
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 90V 3POLE AXIAL LEADS GDT GTCA38-900M-R10 Littelfuse 1: $2.55 1,024In Stock	Mfr. Part # GTCA38-900M-R10 Mouser Part # 650-GTCA38-900M-R10	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 90V 3POLE AXIAL LEADS GDT Learn More about Littelfuse gas discharge tubes	Datasheet	1,024In Stock	$2.55 $1.96 $1.62 $1.50 View $1.37 $1.33	Min.: 1 Mult.: 1	GTCx3-R	10 kA	90 V	3 Electrode	Axial	Failsafe Not Protected	8 mm	13.4 mm	- 40 C	+ 90 C	Tray
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 1000V 2POLE AXIAL LEAD HV GDT GTCA28-102M-R03 Littelfuse 1: $3.58 760In Stock	Mfr. Part # GTCA28-102M-R03 Mouser Part # 650-GTCA28-102M-R03	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 1000V 2POLE AXIAL LEAD HV GDT Learn More about Littelfuse GTCA28 gdts	Datasheet	760In Stock	$3.58 $2.74 $2.27 $2.09 $1.93	Min.: 1 Mult.: 1	GTCx28-R	3 kA	1 kV	2 Electrode	Axial	Failsafe Not Protected	8 mm	6 mm	- 40 C	+ 90 C	Tray
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 90V 2POLE AXIAL LEADS GDT GTCA26-900M-R05 Littelfuse 1: $3.82 126In Stock	Mfr. Part # GTCA26-900M-R05 Mouser Part # 650-GTCA26-900M-R05	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 90V 2POLE AXIAL LEADS GDT Learn More about Littelfuse gas discharge tubes	Datasheet	126In Stock	$3.82 $2.51 $1.86 $1.66 View $1.55 $1.53 Quote	Min.: 1 Mult.: 1	GTCx2-R	5 kA	90 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 230V 2POLE SMT GDT GTCS28-231M-R10-2 Littelfuse 1: $3.59 279In Stock	Mfr. Part # GTCS28-231M-R10-2 Mouser Part # 650-GTCS28-231MR10-2	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 230V 2POLE SMT GDT Learn More about Littelfuse gas discharge tubes	Datasheet	279In Stock	Cut Tape $3.59 $2.34 $1.83 Reel $1.60 $1.42 MouseReel Available	Min.: 1 Mult.: 1 : 500	GTCx2-R	10 kA	230 V	2 Electrode	SMD/SMT	Failsafe Not Protected	8.2 mm	6 mm	- 40 C	+ 90 C	Reel, Cut Tape, MouseReel
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 300V 2POLE SMT GDT GTCS23-301M-R01-2 Littelfuse 1: $1.29 872In Stock	Mfr. Part # GTCS23-301M-R01-2 Mouser Part # 650-GTCS23-301M-R012	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 300V 2POLE SMT GDT Learn More about Littelfuse gas discharge tubes	Datasheet	872In Stock	Cut Tape $1.29 $1.05 $0.811 $0.667 Reel $0.571 View $0.573 $0.568 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 6MM 50V 2POLE AXIAL LEADS GDT GTCA26-501M-R05 Littelfuse 1: $2.73 771In Stock	Mfr. Part # GTCA26-501M-R05 Mouser Part # 650-GTCA26-501M-R05	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 50V 2POLE AXIAL LEADS GDT Learn More about Littelfuse gas discharge tubes	Datasheet	771In Stock	$2.73 $2.09 $1.73 $1.61 View $1.46 $1.43	Min.: 1 Mult.: 1	GTCx2-R	5 kA	500 V	2 Electrode	Axial	Failsafe Protected	6 mm	4.2 mm	- 40 C	+ 90 C	Tray
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 75V 2POLE AXIAL LEADS GDT GTCA28-750M-R10 Littelfuse 1: $1.76 887In Stock	Mfr. Part # GTCA28-750M-R10 Mouser Part # 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	$1.76 $1.40 $1.22 $1.21 $1.16	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 6MM 350V2POLE SMT GDT GTCS26-351M-R05-2 Littelfuse 1: $0.80 1,363In Stock	Mfr. Part # GTCS26-351M-R05-2 Mouser Part # 650-GTCS26-351M-R052	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 350V2POLE SMT GDT Learn More about Littelfuse gas discharge tubes	Datasheet	1,363In Stock	Cut Tape $0.80 $0.664 $0.623 Reel $0.623 $0.588 MouseReel Available	Min.: 1 Mult.: 1 : 750	GTCx2-R	5 kA	350 V	2 Electrode	SMD/SMT	Failsafe Not Protected	6 mm	4.2 mm	- 40 C	+ 90 C	Reel, Cut Tape, MouseReel
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 230V 3POLE SMT GDT GTCS35-231M-R05 Littelfuse 1: $1.65 2,130In Stock	Mfr. Part # GTCS35-231M-R05 Mouser Part # 650-GTCS35-231M-R05	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 230V 3POLE SMT GDT Learn More about Littelfuse gas discharge tubes	Datasheet	2,130In Stock	$1.65 $1.26 $1.05 $0.962 View $0.932 $0.823	Min.: 1 Mult.: 1	GTCx3-R	5 kA	230 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 230V 3POLE RADIAL LEADS GDT GTCR36-231M-R10 Littelfuse 1: $2.71 1,027In Stock	Mfr. Part # GTCR36-231M-R10 Mouser Part # 650-GTCR36-231M-R10	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 230V 3POLE RADIAL LEADS GDT Learn More about Littelfuse gas discharge tubes	Datasheet	1,027In Stock	$2.71 $2.08 $1.72 $1.59 View $1.45 $1.41	Min.: 1 Mult.: 1	GTCx3-R	10 kA	230 V	3 Electrode	Radial	Failsafe Not Protected	6 mm	9.2 mm	- 40 C	+ 90 C	Tray
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 2400V 2POLE AXIAL LEAD HV GDT GTCA28-242M-R03 Littelfuse 1: $3.58 2,808In Stock	Mfr. Part # GTCA28-242M-R03 Mouser Part # 650-GTCA28-242M-R03	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 2400V 2POLE AXIAL LEAD HV GDT Learn More about Littelfuse GTCA28 gdts	Datasheet	2,808In Stock	$3.58 $2.74 $2.27 $2.09 $1.93	Min.: 1 Mult.: 1	GTCx28-R	3 kA	2.4 kV	2 Electrode	Axial	Failsafe Not Protected	8 mm	6 mm	- 40 C	+ 90 C	Tray
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 90V 2POLE SMT GDT GTCS23-900M-R01-2 Littelfuse 1: $0.98 47,073In Stock	Mfr. Part # GTCS23-900M-R01-2 Mouser Part # 650-GTCS23-900MR01-2	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 90V 2POLE SMT GDT Learn More about Littelfuse gas discharge tubes	Datasheet	47,073In Stock	Cut Tape $0.98 $0.747 $0.619 $0.571 $0.568 Reel $0.533 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 5MM 90V 3POLE SMT GDT GTCS35-900M-R05 Littelfuse 1: $1.97 3,120In Stock	Mfr. Part # GTCS35-900M-R05 Mouser Part # 650-GTCS35-900M-R05	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 90V 3POLE SMT GDT Learn More about Littelfuse gas discharge tubes	Datasheet	3,120In Stock	$1.97 $1.52 $1.26 $1.10 View $0.982 $0.942	Min.: 1 Mult.: 1	GTCx3-R	5 kA	90 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 100V 2POLE AXIAL LEADS GDT GTCA26-101M-R05 Littelfuse 1: $2.73 2,023In Stock	Mfr. Part # GTCA26-101M-R05 Mouser Part # 650-GTCA26-101M-R05	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 100V 2POLE AXIAL LEADS GDT Learn More about Littelfuse gas discharge tubes	Datasheet	2,023In Stock	$2.73 $2.09 $1.73 $1.64	Min.: 1 Mult.: 1	GTCx2-R	5 kA	100 V	2 Electrode	Axial	Failsafe Not Protected	6.2 mm	4.4 mm	- 40 C	+ 90 C	Tray

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