Gas Discharge Tubes - GDTs / Gas Plasma Arrestors

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CG2 Gas Discharge Tubes (GDTs)

Littelfuse CG2 Gas Discharge Tubes (GDTs) provide a high degree of surge protection in a small size, making them ideal for board-level circuit protection. These GDTs function as switches to dissipate a minimum amount of energy and handle currents that surpass other types of transient voltage protection. The CG2 series features a 145V to 1000V DC sparkover range, which is ideal for protecting equipment with higher voltage limits and holdover voltages. The gas-filled, rugged ceramic metal construction is highly reliable and well-suited for adverse environments. Littelfuse CG2 GDTs are available in various forms, including surface mount, core, straight, and shaped leads. Applications include data lines, power supplies, communication lines and equipment, medical electronics, and instrumentation circuits.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (PEN) 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 GP S.A. STAN. 470V CG2470LSN Littelfuse 1: S/11.05 174In Stock	Mfr. Part # CG2470LSN Mouser Part # 576-CG2470LSN	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 470V Learn More about Littelfuse cg2 gdts	Datasheet	174In Stock	S/11.05 S/8.49 S/8.10 S/6.70	Min.: 1 Mult.: 1	CG2	20 kA	470 V	2 Electrode	Axial	Failsafe Not Protected	8.1 mm	6.07 mm	- 40 C	+ 90 C	Tray
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors STANDARD 470V MS CG2470MS Littelfuse 1: S/11.72 1,041In Stock	Mfr. Part # CG2470MS Mouser Part # 576-CG2470MS	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors STANDARD 470V MS Learn More about Littelfuse cg2 gdts	Datasheet	1,041In Stock	Cut Tape S/11.72 S/8.99 S/7.59 Reel S/6.70 MouseReel Available	Min.: 1 Mult.: 1 : 500	CG2	20 kA	470 V	2 Electrode	SMD/SMT	Failsafe Not Protected	8.3 mm	6.05 mm	- 40 C	+ 90 C	Reel, Cut Tape, MouseReel
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors STANDARD 600V NOM CG2600LTR Littelfuse 1: S/13.12 251In Stock 500Expected 11/26/2026	Mfr. Part # CG2600LTR Mouser Part # 576-CG2600LTR	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors STANDARD 600V NOM Learn More about Littelfuse cg2 gdts	Datasheet	251In Stock 500Expected 11/26/2026	Cut Tape S/13.12 S/10.04 S/8.60 Reel S/7.63 S/7.59	Min.: 1 Mult.: 1 : 500	CG2	20 kA	600 V	2 Electrode	Axial	Failsafe Not Protected	8.1 mm	6.07 mm	- 40 C	+ 90 C	Reel, Cut Tape
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors STANDARD 600V MS CG2600MS Littelfuse 1: S/12.26 545In Stock	Mfr. Part # CG2600MS Mouser Part # 576-CG2600MS	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors STANDARD 600V MS Learn More about Littelfuse cg2 gdts	Datasheet	545In Stock	Cut Tape S/12.26 S/9.42 S/7.79 Reel S/6.70 MouseReel Available	Min.: 1 Mult.: 1 : 500	CG2	20 kA	600 V	2 Electrode	SMD/SMT	Failsafe Not Protected	8.3 mm	6.05 mm	- 40 C	+ 90 C	Reel, Cut Tape, MouseReel
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors STANDARD 1000V NOM CG21000L Littelfuse 1: S/12.07 323In Stock 700Expected 12/21/2026	Mfr. Part # CG21000L Mouser Part # 576-CG21000L	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors STANDARD 1000V NOM Learn More about Littelfuse cg2 gdts	Datasheet	323In Stock 700Expected 12/21/2026	S/12.07 S/9.23 S/7.36	Min.: 1 Mult.: 1	CG2	20 kA	1 kV	2 Electrode	Axial	Failsafe Not Protected	8.1 mm	6.07 mm	- 40 C	+ 90 C	Tray
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP BIPOLAR SURGE ARRESTER CG2600LSN Littelfuse 1: S/12.07 5,250Factory Stock Available	Mfr. Part # CG2600LSN Mouser Part # 576-CG2600LSN	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP BIPOLAR SURGE ARRESTER Learn More about Littelfuse cg2 gdts	Datasheet	5,250Factory Stock Available More Info Available	S/12.07 S/9.23 S/7.36	Min.: 1 Mult.: 1	CG2	20 kA	600 V	2 Electrode	Axial	Failsafe Not Protected	8.1 mm	6.07 mm	- 40 C	+ 90 C	Tray
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 1000V CG21000LSTR Littelfuse 500: S/8.21 Non-Stocked Lead-Time 17 Weeks	Mfr. Part # CG21000LSTR Mouser Part # 576-CG21000LSTR	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 1000V Learn More about Littelfuse cg2 gdts	Datasheet	Non-Stocked Lead-Time 17 Weeks	Reel S/8.21	Min.: 500 Mult.: 500 : 500	CG2	20 kA	1 kV	2 Electrode	Axial	Failsafe Not Protected	8.1 mm	6.07 mm	- 40 C	+ 90 C	Reel
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 145V CG2145 Littelfuse 1,200: S/6.34 Non-Stocked Lead-Time 17 Weeks	Mfr. Part # CG2145 Mouser Part # 576-CG2145	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 145V Learn More about Littelfuse cg2 gdts	Datasheet	Non-Stocked Lead-Time 17 Weeks	S/6.34 S/6.15 S/6.11 View Quote	Min.: 1,200 Mult.: 1,200	CG2	20 kA	145 V	2 Electrode	SMD/SMT	Failsafe Not Protected	8.1 mm	6.07 mm	- 40 C	+ 90 C	Bulk
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 145V CG2145LSN Littelfuse 1: S/17.24 Non-Stocked Lead-Time 17 Weeks	Mfr. Part # CG2145LSN Mouser Part # 576-CG2145LSN	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 145V Learn More about Littelfuse cg2 gdts	Datasheet	Non-Stocked Lead-Time 17 Weeks	S/17.24 S/11.33 S/7.51 S/7.47 View S/7.28 S/7.08	Min.: 1 Mult.: 1	CG2	20 kA	145 V	2 Electrode	Axial	Failsafe Not Protected	8.1 mm	6.07 mm	- 40 C	+ 90 C	Tray
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 145V CG2145LTR Littelfuse 1,000: S/7.12 Non-Stocked Lead-Time 17 Weeks	Mfr. Part # CG2145LTR Mouser Part # 576-CG2145LTR	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 145V Learn More about Littelfuse cg2 gdts	Datasheet	Non-Stocked Lead-Time 17 Weeks	Cut Tape S/7.12 S/6.97 S/6.93	Min.: 1,000 Mult.: 500 : 500	CG2	20 kA	145 V	2 Electrode	Axial	Failsafe Not Protected	8.1 mm	6.07 mm	- 40 C	+ 90 C	Reel
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 145V CG2145SN Littelfuse 1,200: S/6.93 Non-Stocked Lead-Time 17 Weeks	Mfr. Part # CG2145SN Mouser Part # 576-CG2145SN	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 145V Learn More about Littelfuse cg2 gdts	Datasheet	Non-Stocked Lead-Time 17 Weeks	S/6.93 S/6.70 S/6.66 View Quote	Min.: 1,200 Mult.: 1,200	CG2	20 kA	145 V	2 Electrode	SMD/SMT	Failsafe Not Protected	8.1 mm	6.07 mm	- 40 C	+ 90 C	Bulk
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 230V CG2230LSN Littelfuse 1: S/11.05 Non-Stocked Lead-Time 17 Weeks	Mfr. Part # CG2230LSN Mouser Part # 576-CG2230LSN	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 230V Learn More about Littelfuse cg2 gdts	Datasheet	Non-Stocked Lead-Time 17 Weeks	S/11.05 S/8.49 S/6.73 S/6.70	Min.: 1 Mult.: 1	CG2	20 kA	230 V	2 Electrode	Axial	Failsafe Not Protected	8.1 mm	6.07 mm	- 40 C	+ 90 C	Tray
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 230V CG2230LSNTR Littelfuse 1,000: S/6.89 Non-Stocked Lead-Time 17 Weeks	Mfr. Part # CG2230LSNTR Mouser Part # 576-CG2230LSNTR	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 230V Learn More about Littelfuse cg2 gdts	Datasheet	Non-Stocked Lead-Time 17 Weeks	Cut Tape S/6.89	Min.: 1,000 Mult.: 500 : 500	CG2	20 kA	230 V	2 Electrode	Axial	Failsafe Not Protected	8.1 mm	6.07 mm	- 40 C	+ 90 C	Reel
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 230V CG2230SN Littelfuse 1,200: S/6.93 Non-Stocked Lead-Time 17 Weeks	Mfr. Part # CG2230SN Mouser Part # 576-CG2230SN	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 230V Learn More about Littelfuse cg2 gdts	Datasheet	Non-Stocked Lead-Time 17 Weeks	S/6.93 S/6.70 S/6.66 View Quote	Min.: 1,200 Mult.: 1,200	CG2	20 kA	230 V	2 Electrode	SMD/SMT	Failsafe Not Protected	8.1 mm	6.07 mm	- 40 C	+ 90 C	Bulk
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 250V CG2250 Littelfuse 1,200: S/6.97 Non-Stocked Lead-Time 17 Weeks	Mfr. Part # CG2250 Mouser Part # 576-CG2250	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 250V Learn More about Littelfuse cg2 gdts	Datasheet	Non-Stocked Lead-Time 17 Weeks	S/6.97 S/6.77	Min.: 1,200 Mult.: 1,200	CG2	20 kA	250 V	2 Electrode	SMD/SMT	Failsafe Not Protected	8.1 mm	6.07 mm	- 40 C	+ 90 C	Bulk
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 250V CG2250LSN Littelfuse 1: S/17.24 Non-Stocked Lead-Time 17 Weeks	Mfr. Part # CG2250LSN Mouser Part # 576-CG2250LSN	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 250V Learn More about Littelfuse cg2 gdts	Datasheet	Non-Stocked Lead-Time 17 Weeks	S/17.24 S/11.33 S/7.51 S/7.47 View S/7.24 S/7.05	Min.: 1 Mult.: 1	CG2	20 kA	250 V	2 Electrode	Axial	Failsafe Not Protected	8.1 mm	6.07 mm	- 40 C	+ 90 C	Tray
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 250V CG2250LSNTR Littelfuse 1,000: S/7.40 Non-Stocked Lead-Time 17 Weeks	Mfr. Part # CG2250LSNTR Mouser Part # 576-CG2250LSNTR	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 250V Learn More about Littelfuse cg2 gdts	Datasheet	Non-Stocked Lead-Time 17 Weeks	Cut Tape S/7.40 S/7.20 S/7.16	Min.: 1,000 Mult.: 500 : 500	CG2	20 kA	250 V	2 Electrode	Axial	Failsafe Not Protected	8.1 mm	6.07 mm	- 40 C	+ 90 C	Reel
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 250V CG2250LTR Littelfuse 1,000: S/7.40 Non-Stocked Lead-Time 17 Weeks	Mfr. Part # CG2250LTR Mouser Part # 576-CG2250LTR	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 250V Learn More about Littelfuse cg2 gdts	Datasheet	Non-Stocked Lead-Time 17 Weeks	Cut Tape S/7.40 S/7.20 S/7.08 Quote Quote	Min.: 1,000 Mult.: 500 : 500	CG2	20 kA	250 V	2 Electrode	Axial	Failsafe Not Protected	8.1 mm	6.07 mm	- 40 C	+ 90 C	Reel
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 250V MS GP S.A. STANDARD CG2250MS Littelfuse 1,000: S/7.12 Non-Stocked Lead-Time 17 Weeks	Mfr. Part # CG2250MS Mouser Part # 576-CG2250MS	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 250V MS GP S.A. STANDARD Learn More about Littelfuse cg2 gdts	Datasheet	Non-Stocked Lead-Time 17 Weeks	Cut Tape S/7.12 S/6.93 S/6.89 View Quote	Min.: 1,000 Mult.: 500 : 500	CG2	20 kA	250 V	2 Electrode	SMD/SMT	Failsafe Not Protected	8.3 mm	6.05 mm	- 40 C	+ 90 C	Reel
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 250V CG2250SN Littelfuse 1,200: S/6.93 Non-Stocked Lead-Time 17 Weeks	Mfr. Part # CG2250SN Mouser Part # 576-CG2250SN	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 250V Learn More about Littelfuse cg2 gdts	Datasheet	Non-Stocked Lead-Time 17 Weeks	S/6.93 S/6.70 S/6.66 View Quote	Min.: 1,200 Mult.: 1,200	CG2	20 kA	250 V	2 Electrode	SMD/SMT	Failsafe Not Protected	8.1 mm	6.07 mm	- 40 C	+ 90 C	Bulk
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 300V CG2300 Littelfuse 1,200: S/6.89 Non-Stocked Lead-Time 17 Weeks	Mfr. Part # CG2300 Mouser Part # 576-CG2300	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 300V Learn More about Littelfuse cg2 gdts	Datasheet	Non-Stocked Lead-Time 17 Weeks	S/6.89 S/6.66 View Quote	Min.: 1,200 Mult.: 1,200	CG2	20 kA	300 V	2 Electrode	SMD/SMT	Failsafe Not Protected	8.1 mm	6.07 mm	- 40 C	+ 90 C	Bulk
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 300V CG2300LSN Littelfuse 1: S/17.20 Non-Stocked Lead-Time 17 Weeks	Mfr. Part # CG2300LSN Mouser Part # 576-CG2300LSN	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 300V Learn More about Littelfuse cg2 gdts	Datasheet	Non-Stocked Lead-Time 17 Weeks	S/17.20 S/11.29 S/8.56 S/7.59 View S/6.50 S/6.11	Min.: 1 Mult.: 1	CG2	20 kA	300 V	2 Electrode	Axial	Failsafe Not Protected	8.1 mm	6.07 mm	- 40 C	+ 90 C	Tray
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 300V CG2300LSNTR Littelfuse 1,000: S/7.40 Non-Stocked Lead-Time 17 Weeks	Mfr. Part # CG2300LSNTR Mouser Part # 576-CG2300LSNTR	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 300V Learn More about Littelfuse cg2 gdts	Datasheet	Non-Stocked Lead-Time 17 Weeks	Cut Tape S/7.40 S/7.20 S/7.08 Quote Quote	Min.: 1,000 Mult.: 500 : 500	CG2	20 kA	300 V	2 Electrode	Axial	Failsafe Not Protected	8.1 mm	6.07 mm	- 40 C	+ 90 C	Reel
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 300V CG2300LTR Littelfuse 1,000: S/7.40 Non-Stocked Lead-Time 17 Weeks	Mfr. Part # CG2300LTR Mouser Part # 576-CG2300LTR	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 300V Learn More about Littelfuse cg2 gdts	Datasheet	Non-Stocked Lead-Time 17 Weeks	Cut Tape S/7.40 S/7.20 S/7.08 Quote Quote	Min.: 1,000 Mult.: 500 : 500	CG2	20 kA	300 V	2 Electrode	Axial	Failsafe Not Protected	8.1 mm	6.07 mm	- 40 C	+ 90 C	Reel
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 300V MS GP S.A. STANDARD CG2300MS Littelfuse 1,000: S/7.16 Non-Stocked Lead-Time 17 Weeks	Mfr. Part # CG2300MS Mouser Part # 576-CG2300MS	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 300V MS GP S.A. STANDARD Learn More about Littelfuse cg2 gdts	Datasheet	Non-Stocked Lead-Time 17 Weeks	Cut Tape S/7.16 S/6.97 S/6.93	Min.: 1,000 Mult.: 500 : 500	CG2	20 kA	300 V	2 Electrode	SMD/SMT	Failsafe Not Protected	8.3 mm	6.05 mm	- 40 C	+ 90 C	Reel

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