.hide-partial { max-height: none; } .show-more { display: none; }

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.

All Results (391)

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (SGD) 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: $1.33 46,996In Stock	Mfr. Part No. GTCS23-900M-R01-2 Mouser Part No 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	46,996In Stock	Cut Tape $1.33 $1.22 $1.02 $0.937 Reel $0.658 View $0.842 $0.777 $0.772 $0.63 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 90V 3POLE RADIAL LEADS GDT GTCR36-900M-R10 Littelfuse 1: $4.42 1,192In Stock	Mfr. Part No. GTCR36-900M-R10 Mouser Part No 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	1,192In Stock	$4.42 $3.67 $3.39 $2.82 View $2.37 $2.22 $2.09 $1.96 $1.92	Min.: 1 Mult.: 1
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STANDARD 600V NOMINAL CG5600L Littelfuse 1: $3.62 1,221In Stock	Mfr. Part No. CG5600L Mouser Part No 576-CG5600L	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STANDARD 600V NOMINAL	Datasheet	1,221In Stock	Cut Tape $3.62 $3.21 $2.98 $2.49 View Reel $1.58 $2.22 $2.04 $1.73 $1.58	Min.: 1 Mult.: 1 : 1,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 3000V 2POLE AXIAL LEAD HV GDT GTCA28-302M-R03 Littelfuse 1: $4.49 978In Stock	Mfr. Part No. GTCA28-302M-R03 Mouser Part No 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	$4.49 $3.62 $3.44 $2.98 View $2.79 $2.64 $2.62	Min.: 1 Mult.: 1
Resettable Fuses - PPTC .15A 250Vdc 600Vrms TRF600-150-B-0.5-2 Littelfuse 1: $1.69 7,531In Stock	Mfr. Part No. TRF600-150-B-0.5-2 Mouser Part No 650-TRF600-150B0.5-2	Littelfuse	Resettable Fuses - PPTC .15A 250Vdc 600Vrms Learn More about Littelfuse telecom ptcs	Datasheet	7,531In Stock	Cut Tape $1.69 $1.31 $1.17 $1.09 Reel $0.802 View $0.989 $0.842 $0.766 $0.741	Min.: 1 Mult.: 1 : 1,500
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GTCR38-601M-R20 Littelfuse 1: $8.02 951In Stock	Mfr. Part No. GTCR38-601M-R20 Mouser Part No 650-GTCR38-601M-R20	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Learn More about Littelfuse gas discharge tubes	Datasheet	951In Stock	$8.02 $6.65 $6.15 $5.10 View $4.71 $4.22 $3.89 $3.70	Min.: 1 Mult.: 1
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 90V2POLE SMT GDT GTCS25-900M-R02 Littelfuse 1: $4.27 3,661In Stock	Mfr. Part No. GTCS25-900M-R02 Mouser Part No 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	$4.27 $3.55 $3.28 $2.72 View $2.26 $2.08 $1.92 $1.86 $1.80	Min.: 1 Mult.: 1
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 1000V 2POLE AXIAL LEAD HV GDT GTCA28-102M-R03 Littelfuse 1: $5.86 745In Stock	Mfr. Part No. GTCA28-102M-R03 Mouser Part No 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	$5.86 $4.87 $4.49 $3.73 View $3.44 $3.09 $2.84 $2.62	Min.: 1 Mult.: 1
Resettable Fuses - PPTC Polyswitch 0.26A TS250-130F-2 Littelfuse 1: $1.43 4,255In Stock	Mfr. Part No. TS250-130F-2 Mouser Part No 650-TS250-130F-2	Littelfuse	Resettable Fuses - PPTC Polyswitch 0.26A Learn More about Littelfuse telecom ptcs	Datasheet	4,255In Stock	Cut Tape $1.43 $1.32 $1.21 $1.13 Reel $0.804 View $1.05 $1.00 $0.756 MouseReel Available	Min.: 1 Mult.: 1 : 1,500
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors STANDARD 90V NOM CG590L Littelfuse 1: $4.75 2,349In Stock	Mfr. Part No. CG590L Mouser Part No 576-CG590L	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors STANDARD 90V NOM	Datasheet	2,349In Stock	Cut Tape $4.75 $3.94 $3.64 $3.02 View Reel $1.85 $2.79 $2.50 $2.31 $1.85	Min.: 1 Mult.: 1 : 1,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 2100V 2POLE AXIAL LEAD HV GDT GTCA28-212M-R03 Littelfuse 1: $5.86 1,456In Stock	Mfr. Part No. GTCA28-212M-R03 Mouser Part No 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	$5.86 $4.87 $4.49 $3.73 View $3.44 $3.09 $2.84 $2.71 $2.62	Min.: 1 Mult.: 1
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 90V 3POLE AXIAL LEADS GDT GTCA38-900M-R10 Littelfuse 1: $4.18 1,011In Stock	Mfr. Part No. GTCA38-900M-R10 Mouser Part No 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	1,011In Stock	$4.18 $3.47 $3.21 $2.67 View $2.45 $2.20 $2.03 $1.86 $1.81	Min.: 1 Mult.: 1
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 4000V 2POLE AXIAL LEAD HV GDT GTCA28-402M-R03 Littelfuse 1: $6.96 995In Stock	Mfr. Part No. GTCA28-402M-R03 Mouser Part No 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	995In Stock	$6.96 $6.30 $5.81 $4.81 View $4.13 $3.93 $3.43 $3.26	Min.: 1 Mult.: 1
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 200V 2POLE CHIP TYPE SMT GTCC23-201M-R01-2 Littelfuse 1: $1.54 2,341In Stock	Mfr. Part No. GTCC23-201M-R01-2 Mouser Part No 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 $1.54 $1.41 $1.17 $1.08 Reel $0.734 View $0.90 $0.759 $0.722 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 315-525V 2A GDT T/R 2 Term SG420 Littelfuse 1: $1.48 2,525In Stock	Mfr. Part No. SG420 Mouser Part No 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 $1.48 $1.26 $1.09 $1.02 View Reel $0.85 $0.962 $0.903 $0.858 $0.85 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 75V 2POLE SMT GDT GTCS28-750M-R05-2 Littelfuse 1: $4.09 1,773In Stock	Mfr. Part No. GTCS28-750M-R05-2 Mouser Part No 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 $4.09 $3.85 $3.64 $2.94 Reel $1.94 View $2.49 $2.43 $1.82 $1.66 MouseReel Available	Min.: 1 Mult.: 1 : 500
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 230V 3POLE SMT GDT GTCS35-231M-R05 Littelfuse 1: $2.24 2,130In Stock	Mfr. Part No. GTCS35-231M-R05 Mouser Part No 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	$2.24 $2.07 $1.71 $1.59 View $1.43 $1.31 $1.12	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 250V .12A-HD 3A MAX TRF250-120-2 Littelfuse 1: $1.03 2,551In Stock	Mfr. Part No. TRF250-120-2 Mouser Part No 650-TRF250-120-2	Littelfuse	Resettable Fuses - PPTC 250V .12A-HD 3A MAX Learn More about Littelfuse telecom ptcs	Datasheet	2,551In Stock	Cut Tape $1.03 $0.925 $0.862 $0.789 Reel $0.517 View $0.729 $0.643 $0.465 $0.464	Min.: 1 Mult.: 1 : 1,500
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 50V 2POLE AXIAL LEADS GDT GTCA26-501M-R05 Littelfuse 1: $4.61 701In Stock	Mfr. Part No. GTCA26-501M-R05 Mouser Part No 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	701In Stock	$4.61 $3.93 $3.67 $3.01 View $2.71 $2.46 $2.24 $1.99 $1.94	Min.: 1 Mult.: 1
Thyristor Surge Protection Devices - TSPD 500A 170V P1800SCMCLRP Littelfuse 1: $2.28 1,747In Stock	Mfr. Part No. P1800SCMCLRP Mouser Part No 576-P1800SCMCLRP	Littelfuse	Thyristor Surge Protection Devices - TSPD 500A 170V Learn More about Littelfuse p 0s mclrp thyristors	Datasheet	1,747In Stock	Cut Tape $2.28 $1.41 $1.03 $0.876 $0.816 Reel $0.802 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 90V 2POLE AXIAL LEADS GDT GTCA26-900M-R05 Littelfuse 1: $4.43 14In Stock	Mfr. Part No. GTCA26-900M-R05 Mouser Part No 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	14In Stock	$4.43 $4.04 $3.90 $3.06 View $2.60 $2.43 $2.15 $2.11 $2.05	Min.: 1 Mult.: 1
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 3600V 2POLE AXIAL LEAD HV GDT GTCA28-362M-R03 Littelfuse 1: $6.96 369In Stock 1,000Expected 23/2/2027	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 23/2/2027	$6.96 $6.30 $5.81 $4.81 View $4.13 $3.93 $3.26	Min.: 1 Mult.: 1
Thyristor Surge Protection Devices - TSPD 500A 90V P1100SCMCLRP Littelfuse 1: $2.62 2,616In Stock	Mfr. Part No. P1100SCMCLRP Mouser Part No 576-P1100SCMCLRP	Littelfuse	Thyristor Surge Protection Devices - TSPD 500A 90V Learn More about Littelfuse p 0s mclrp thyristors	Datasheet	2,616In Stock	Cut Tape $2.62 $1.69 $1.18 $0.952 $0.864 Reel $0.802 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 263-437V 2A GDT T/R 2 Term SG350 Littelfuse 1: $1.94 1,995In Stock	Mfr. Part No. SG350 Mouser Part No 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 $1.94 $1.80 $1.48 $1.37 Reel $0.865 View $1.23 $1.13 $1.05 $0.85 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 230V 2POLE SMT GDT GTCS28-231M-R10-2 Littelfuse 1: $4.09 279In Stock	Mfr. Part No. GTCS28-231M-R10-2 Mouser Part No 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 $4.09 $3.85 $3.64 $2.94 Reel $2.18 View $2.49 $2.43 $1.93 MouseReel Available	Min.: 1 Mult.: 1 : 500