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RS-485 ESD, Lightning, & Power Fault Protection

Littelfuse RS-485 ESD, Lightning, and Power Fault Protection feature polymeric positive temperature coefficients (PPTCs) that can protect against short circuit and power crosses. The RS-485 product line includes the resettable PPTCs, TVS diodes, GDTs, and SIDACtor series. The TVS Diode Arrays and SM712 series are specifically designed to protect RS-485 applications from ESD, EFT, and lightning-induced surges. When lightning occurs, the SIDACtor will react by causing voltage to increase across PPTC until GDT fires.

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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.
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 90V 2POLE SMT GDT GTCS23-900M-R01-2 Littelfuse 1: $0.98 A tariff of 30% may be applied if shipping to the United States. 47,016In 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	47,016In Stock	Cut Tape $0.98 $0.90 $0.747 $0.689 Reel $0.484 View $0.619 $0.571 $0.568 $0.463 MouseReel Available A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 2,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 90V 3POLE RADIAL LEADS GDT GTCR36-900M-R10 Littelfuse 1: $3.25 A tariff of 30% may be applied if shipping to the United States. 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	$3.25 $2.70 $2.49 $2.07 View $1.84 $1.71 $1.58 $1.53 $1.41 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 90V2POLE SMT GDT GTCS25-900M-R02 Littelfuse 1: $3.14 A tariff of 30% may be applied if shipping to the United States. 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	$3.14 $2.61 $2.41 $2.00 View $1.66 $1.53 $1.41 $1.37 $1.32 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Resettable Fuses - PPTC .15A 250Vdc 600Vrms TRF600-150-B-0.5-2 Littelfuse 1: $1.28 A tariff of 30% may be applied if shipping to the United States. 7,631In Stock	Mfr. Part # TRF600-150-B-0.5-2 Mouser Part # 650-TRF600-150B0.5-2	Littelfuse	Resettable Fuses - PPTC .15A 250Vdc 600Vrms Learn More about Littelfuse telecom ptcs	Datasheet	7,631In Stock	Cut Tape $1.28 $0.992 $0.837 $0.816 Reel $0.625 View $0.743 $0.667 $0.615 $0.57 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 1,500
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 200V 2POLE CHIP TYPE SMT GTCC23-201M-R01-2 Littelfuse 1: $1.13 A tariff of 30% may be applied if shipping to the United States. 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 $1.04 $0.859 $0.793 Reel $0.54 View $0.662 $0.558 $0.531 MouseReel Available A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 2,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 90V 3POLE SMT GDT GTCS35-900M-R05 Littelfuse 1: $1.94 A tariff of 30% may be applied if shipping to the United States. 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	$1.94 $1.71 $1.40 $1.24 View $1.16 $1.03 $0.989 $0.918 $0.823 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STANDARD 600V NOMINAL CG5600L Littelfuse 1: $2.75 A tariff of 30% may be applied if shipping to the United States. 1,221In Stock	Mfr. Part # CG5600L Mouser Part # 576-CG5600L	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STANDARD 600V NOMINAL	Datasheet	1,221In Stock	Cut Tape $2.75 $2.48 $2.31 $1.92 Reel $1.23 View $1.68 $1.57 $1.33 $1.16 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 1,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 90V SMD Ultra Low 0.3pF CG690SM Littelfuse 1: $2.65 A tariff of 30% may be applied if shipping to the United States. 2,881In Stock	Mfr. Part # CG690SM Mouser Part # 576-CG690SM	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 90V SMD Ultra Low 0.3pF Learn More about Littelfuse CG6 CG7 SMD gas discharge tubes	Datasheet	2,881In Stock	Cut Tape $2.65 $2.20 $2.03 $1.69 View Reel $1.20 $1.56 $1.43 $1.23 $1.20 MouseReel Available A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 2,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 3000V 2POLE AXIAL LEAD HV GDT GTCA28-302M-R03 Littelfuse 1: $4.31 A tariff of 30% may be applied if shipping to the United States. 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	$4.31 $3.11 $2.97 $2.48 View $2.24 $2.12 $2.07 $1.93 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 600V 2POLE AXIAL LEADS GDT GTCA28-601M-R05 Littelfuse 1: $3.44 A tariff of 30% may be applied if shipping to the United States. 843In 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	843In Stock	$3.44 $2.86 $2.64 $2.19 View $2.02 $1.82 $1.67 $1.53 $1.50 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 1000V 2POLE AXIAL LEAD HV GDT GTCA28-102M-R03 Littelfuse 1: $4.31 A tariff of 30% may be applied if shipping to the United States. 745In 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	745In Stock	$4.31 $3.58 $3.30 $2.74 View $2.53 $2.27 $2.09 $1.93 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Resettable Fuses - PPTC Polyswitch 0.26A TS250-130F-2 Littelfuse 1: $1.35 A tariff of 30% may be applied if shipping to the United States. 4,465In Stock	Mfr. Part # TS250-130F-2 Mouser Part # 650-TS250-130F-2	Littelfuse	Resettable Fuses - PPTC Polyswitch 0.26A Learn More about Littelfuse telecom ptcs	Datasheet	4,465In Stock	Cut Tape $1.35 $1.18 $0.992 $0.94 View Reel $0.636 $0.853 $0.786 $0.636 MouseReel Available A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 1,500
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 315-525V 2A GDT T/R 2 Term SG420 Littelfuse 1: $1.43 A tariff of 30% may be applied if shipping to the United States. 2,525In Stock	Mfr. Part # SG420 Mouser Part # 576-SG420	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 315-525V 2A GDT T/R 2 Term Learn More about Littelfuse sg series sgdt	Datasheet	2,525In Stock	Cut Tape $1.43 $1.07 $0.899 $0.819 Reel $0.636 View $0.774 $0.708 $0.668 $0.625 MouseReel Available A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 2,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 75V 2POLE SMT GDT GTCS28-750M-R05-2 Littelfuse 1: $3.01 A tariff of 30% may be applied if shipping to the United States. 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 $3.01 $2.83 $2.68 $2.16 Reel $1.43 View $1.83 $1.79 $1.34 $1.22 MouseReel Available A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 500
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 4000V 2POLE AXIAL LEAD HV GDT GTCA28-402M-R03 Littelfuse 1: $5.12 A tariff of 30% may be applied if shipping to the United States. 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	$5.12 $4.63 $4.27 $3.54 View $3.04 $2.89 $2.52 $2.40 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors STANDARD 90V NOM CG590L Littelfuse 1: $3.49 A tariff of 30% may be applied if shipping to the United States. 3,354In Stock	Mfr. Part # CG590L Mouser Part # 576-CG590L	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors STANDARD 90V NOM	Datasheet	3,354In Stock	Cut Tape $3.49 $2.90 $2.68 $2.22 View Reel $1.36 $2.05 $1.84 $1.70 $1.36 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 1,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP 5X5 230V Minitube 2 Term SL0902A230SM Littelfuse 1: $2.48 A tariff of 30% may be applied if shipping to the United States. 1,721In Stock	Mfr. Part # SL0902A230SM Mouser Part # 576-SL0902A230SM	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP 5X5 230V Minitube 2 Term Learn More about Littelfuse sl0902a cg5 gdts	Datasheet	1,721In Stock	Cut Tape $2.48 $2.20 $2.06 $1.67 Reel $1.14 View $1.52 $1.50 $1.24 $1.04 MouseReel Available A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 900
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 2100V 2POLE AXIAL LEAD HV GDT GTCA28-212M-R03 Littelfuse 1: $4.31 A tariff of 30% may be applied if shipping to the United States. 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	$4.31 $3.58 $3.30 $2.74 View $2.53 $2.27 $2.09 $2.06 $1.93 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 90V 3POLE AXIAL LEADS GDT GTCA38-900M-R10 Littelfuse 1: $3.07 A tariff of 30% may be applied if shipping to the United States. 1,021In 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	1,021In Stock	$3.07 $2.55 $2.36 $1.96 View $1.81 $1.62 $1.50 $1.37 $1.33 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 230V 2POLE CHIP TYPE SMT GTCC23-231M-R01-2 Littelfuse 1: $1.52 A tariff of 30% may be applied if shipping to the United States. 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 $1.52 $1.26 $1.04 $0.885 View Reel $0.63 $0.844 $0.734 $0.676 $0.63 MouseReel Available A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 2,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GTCR38-601M-R20 Littelfuse 1: $5.90 A tariff of 30% may be applied if shipping to the United States. 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	$5.90 $4.89 $4.52 $3.75 View $3.46 $3.10 $2.86 $2.72 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 50V 2POLE AXIAL LEADS GDT GTCA26-501M-R05 Littelfuse 1: $3.49 A tariff of 30% may be applied if shipping to the United States. 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	$3.49 $3.04 $2.88 $2.32 View $2.04 $1.88 $1.69 $1.46 $1.43 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 75V 2POLE AXIAL LEADS GDT GTCA28-750M-R10 Littelfuse 1: $2.71 A tariff of 30% may be applied if shipping to the United States. 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	$2.71 $2.25 $2.08 $1.58 View $1.42 $1.36 $1.24 $1.21 $1.16 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Thyristor Surge Protection Devices - TSPD 500A 90V P1100SCMCLRP Littelfuse 1: $1.93 A tariff of 40% may be applied if shipping to the United States. 2,616In Stock	Mfr. Part # P1100SCMCLRP Mouser Part # 576-P1100SCMCLRP	Littelfuse	Thyristor Surge Protection Devices - TSPD 500A 90V Learn More about Littelfuse p 0s mclrp thyristors	Datasheet	2,616In Stock	Cut Tape $1.93 $1.24 $0.871 $0.70 $0.635 Reel $0.59 MouseReel Available A tariff of 40% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 2,500
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 263-437V 2A GDT T/R 2 Term SG350 Littelfuse 1: $1.43 A tariff of 30% may be applied if shipping to the United States. 1,995In Stock	Mfr. Part # SG350 Mouser Part # 576-SG350	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 263-437V 2A GDT T/R 2 Term Learn More about Littelfuse sg series sgdt	Datasheet	1,995In Stock	Cut Tape $1.43 $1.32 $1.09 $1.01 Reel $0.636 View $0.904 $0.834 $0.772 $0.625 MouseReel Available A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 2,000