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General Port Protection Solutions

Littelfuse General Port Protection provides a wide array of solutions for power and communication ports. Ports need protection from common electrical hazards such as lightning surges, induced power surges, power cross, electrical fast transient, electrostatic discharge, and short-circuits due to aging wires or installation errors. Littelfuse General Port Protection products are ideal for automotive, building automation, consumer electronics, and industrial applications.

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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: $1.27 46,913In 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	46,913In Stock	Cut Tape $1.27 $1.17 $0.971 $0.896 Reel $0.629 View $0.805 $0.742 $0.738 $0.602 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Surface Mount Fuses 600VAC 2A .045ohms 461 NANO2 0461002.ER Littelfuse 1: $2.46 23,034In Stock	Mfr. Part # 0461002.ER Mouser Part # 576-0461002.ER	Littelfuse	Surface Mount Fuses 600VAC 2A .045ohms 461 NANO2 Learn More about Littelfuse 461 telelink fuses	Datasheet	23,034In Stock	Cut Tape $2.46 $2.07 $1.78 $1.64 View Reel $1.29 $1.51 $1.39 $1.33 $1.29 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 1.3pF 7A UNIDIRECTIONAL SP4024-01FTG Littelfuse 1: $0.819 384,740In Stock	Mfr. Part # SP4024-01FTG Mouser Part # 576-SP4024-01FTG	Littelfuse	ESD Protection Diodes / TVS Diodes 1.3pF 7A UNIDIRECTIONAL Learn More about Littelfuse sp402x arrays	Datasheet	384,740In Stock	Cut Tape $0.819 $0.446 $0.399 $0.341 Reel $0.218 View $0.328 $0.217 $0.191 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1CH 24V 200W BI SPHV24-01ETG-C Littelfuse 1: $0.741 467,825In Stock	Mfr. Part # SPHV24-01ETG-C Mouser Part # 576-SPHV24-01ETG-C	Littelfuse	ESD Protection Diodes / TVS Diodes 1CH 24V 200W BI Learn More about Littelfuse sphv tvs diodes	Datasheet	467,825In Stock	Cut Tape $0.741 $0.334 $0.293 $0.22 View Reel $0.124 $0.215 $0.185 $0.182 $0.124 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 90V 3POLE RADIAL LEADS GDT GTCR36-900M-R10 Littelfuse 1: $4.23 1,192In 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	1,192In Stock	$4.23 $3.51 $3.24 $2.69 View $2.26 $2.12 $2.00 $1.87 $1.83	Min.: 1 Mult.: 1
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 4000V 2POLE AXIAL LEAD HV GDT GTCA28-402M-R03 Littelfuse 1: $6.66 995In 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	995In Stock	$6.66 $6.02 $5.55 $4.60 View $3.95 $3.76 $3.28 $3.12	Min.: 1 Mult.: 1
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP CG2 SMT TYPE CG75MSTR Littelfuse 1: $4.58 1,380In Stock	Mfr. Part # CG75MSTR Mouser Part # 576-CG75MSTR	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP CG2 SMT TYPE	Datasheet	1,380In Stock	Cut Tape $4.58 $3.80 $3.51 $2.91 Reel $2.21 View $2.69 $2.47 $2.00 MouseReel Available	Min.: 1 Mult.: 1 : 500
Thyristor Surge Protection Devices - TSPD 22V 500A DO214 2L SIDACtor Bi P0220SCLRP Littelfuse 1: $2.41 4,574In Stock	Mfr. Part # P0220SCLRP Mouser Part # 576-P0220SCLRP	Littelfuse	Thyristor Surge Protection Devices - TSPD 22V 500A DO214 2L SIDACtor Bi Learn More about Littelfuse p 0s lrp thyristors	Datasheet	4,574In Stock	Cut Tape $2.41 $1.53 $1.02 $0.809 $0.74 Reel $0.654 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Varistors 23V 20mm Epoxy UltraMOV V20E23P Littelfuse 1: $1.09 12,240In Stock	Mfr. Part # V20E23P Mouser Part # 576-V20E23P	Littelfuse	Varistors 23V 20mm Epoxy UltraMOV Learn More about Littelfuse ultramov 20mm varistors	Datasheet	12,240In Stock	$1.09 $0.71 $0.624 $0.614 View $0.581 $0.549 $0.543 $0.542	Min.: 1 Mult.: 1
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 200V 2POLE CHIP TYPE SMT GTCC23-201M-R01-2 Littelfuse 1: $1.47 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 $1.47 $1.35 $1.12 $1.03 Reel $0.702 View $0.861 $0.725 $0.69 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Thyristor Surge Protection Devices - TSPD 100A 220V P2600SBLRP Littelfuse 1: $2.30 5,000In Stock	Mfr. Part # P2600SBLRP Mouser Part # 576-P2600SBLRP	Littelfuse	Thyristor Surge Protection Devices - TSPD 100A 220V Learn More about Littelfuse p 0s lrp thyristors	Datasheet	5,000In Stock	Cut Tape $2.30 $1.04 $0.776 $0.641 $0.606 Reel $0.606 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 315-525V 2A GDT T/R 2 Term SG420 Littelfuse 1: $1.42 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 $1.42 $1.21 $1.05 $0.979 Reel $0.827 View $0.919 $0.863 $0.828 $0.813 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP 5X5 90V Minitube 2 Term SL0902A090SM Littelfuse 1: $3.28 6,298In Stock	Mfr. Part # SL0902A090SM Mouser Part # 576-SL0902A090SM	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP 5X5 90V Minitube 2 Term Learn More about Littelfuse sl0902a cg5 gdts	Datasheet	6,298In Stock	Cut Tape $3.28 $2.96 $2.70 $2.26 Reel $1.44 View $2.09 $1.89 $1.56 $1.35 MouseReel Available	Min.: 1 Mult.: 1 : 900
ESD Protection Diodes / TVS Diodes 1.5kW 130V 5% Uni-Directional SMCJ130A Littelfuse 1: $0.91 8,428In Stock	Mfr. Part # SMCJ130A Mouser Part # 576-SMCJ130A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 130V 5% Uni-Directional Learn More about Littelfuse smcj tvs 1500w diodes	Datasheet	8,428In Stock	Cut Tape $0.91 $0.473 $0.404 $0.317 Reel $0.234 View $0.312 $0.205 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 75V 2POLE SMT GDT GTCS28-750M-R05-2 Littelfuse 1: $3.91 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 $3.91 $3.68 $3.48 $2.81 Reel $1.81 View $2.38 $2.33 $1.73 $1.59 MouseReel Available	Min.: 1 Mult.: 1 : 500
Cartridge Fuses 250V 4A Slo-Blo 0313004.MXP Littelfuse 1: $1.94 4,971In Stock	Mfr. Part # 0313004.MXP Mouser Part # 576-0313004.MXP	Littelfuse	Cartridge Fuses 250V 4A Slo-Blo Learn More about Littelfuse 6x32 3ab3ag fuseholders	Datasheet	4,971In Stock	$1.94 $1.79 $1.48 $1.31 View $1.20 $1.13 $1.10	Min.: 1 Mult.: 1
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STANDARD 600V NOMINAL CG5600L Littelfuse 1: $3.46 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 $3.46 $3.07 $2.85 $2.38 View Reel $1.51 $2.12 $1.95 $1.76 $1.51	Min.: 1 Mult.: 1 : 1,000
Varistors 5.5 VDC .05J 21V-CL 185PF P V5.5MLA0402NR Littelfuse 1: $0.403 43,997In Stock 30,000Expected 12/1/2026	Mfr. Part # V5.5MLA0402NR Mouser Part # 576-V5.5MLA0402NR	Littelfuse	Varistors 5.5 VDC .05J 21V-CL 185PF P Learn More about Littelfuse Littelfuse Varistors	Datasheet	43,997In Stock 30,000Expected 12/1/2026	Cut Tape $0.403 $0.248 $0.222 $0.209 View Reel $0.169 $0.199 $0.187 $0.181 $0.177 $0.169 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 3000V 2POLE AXIAL LEAD HV GDT GTCA28-302M-R03 Littelfuse 1: $4.29 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	$4.29 $3.46 $3.29 $2.85 View $2.67 $2.52 $2.51	Min.: 1 Mult.: 1
Thyristor Surge Protection Devices - TSPD 100A 6V P0080SBLRP Littelfuse 1: $2.28 3,999In Stock	Mfr. Part # P0080SBLRP Mouser Part # 576-P0080SBLRP	Littelfuse	Thyristor Surge Protection Devices - TSPD 100A 6V Learn More about Littelfuse p 0s lrp thyristors	Datasheet	3,999In Stock	Cut Tape $2.28 $1.44 $0.922 $0.745 $0.677 Reel $0.615 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Thyristor Surge Protection Devices - TSPD 500A 90V P1100SCLRP Littelfuse 1: $2.41 20,065In Stock	Mfr. Part # P1100SCLRP Mouser Part # 576-P1100SCLRP	Littelfuse	Thyristor Surge Protection Devices - TSPD 500A 90V Learn More about Littelfuse p 0s lrp thyristors	Datasheet	20,065In Stock	Cut Tape $2.41 $1.53 $0.758 $0.654 Reel $0.654 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 1.5kW 24V 5% Bi-Directional SMCJ24CA Littelfuse 1: $1.26 17,786In Stock	Mfr. Part # SMCJ24CA Mouser Part # 576-SMCJ24CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 24V 5% Bi-Directional Learn More about Littelfuse smcj tvs 1500w diodes	Datasheet	17,786In Stock	Cut Tape $1.26 $0.58 $0.512 $0.394 Reel $0.246 View $0.237 $0.233 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Varistors RADIAL VARISTOR 7MM ROHS/LEAD FREE V07E25PL2T Littelfuse 1: $0.377 9,292In Stock	Mfr. Part # V07E25PL2T Mouser Part # 576-V07E25PL2T	Littelfuse	Varistors RADIAL VARISTOR 7MM ROHS/LEAD FREE Learn More about Littelfuse ultramov 7mm varistors	Datasheet	9,292In Stock	Cut Tape $0.377 $0.243 $0.234 Reel $0.234	Min.: 1 Mult.: 1 : 1,000
Cartridge Fuses 250V 3.2A Slo-Blo 031303.2MXP Littelfuse 1: $1.70 2,292In Stock	Mfr. Part # 031303.2MXP Mouser Part # 576-031303.2MXP	Littelfuse	Cartridge Fuses 250V 3.2A Slo-Blo Learn More about Littelfuse 6x32 3ab3ag fuseholders	Datasheet	2,292In Stock	$1.70 $1.57 $1.31 $1.20 View $1.08 $0.996 $0.832	Min.: 1 Mult.: 1
Cartridge Fuses 500Vac 400Vdc TL 5X20 800mA 0477.800MXP Littelfuse 1: $2.72 2,890In Stock	Mfr. Part # 0477.800MXP Mouser Part # 576-0477.800MXP	Littelfuse	Cartridge Fuses 500Vac 400Vdc TL 5X20 800mA Learn More about Littelfuse battery management solutions	Datasheet	2,890In Stock	$2.72 $2.51 $2.08 $1.92 View $1.73 $1.59 $1.37	Min.: 1 Mult.: 1