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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 (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
ESD Protection Diodes / TVS Diodes 1.3pF 7A UNIDIRECTIONAL SP4024-01FTG Littelfuse 1: $0.857 386,070In Stock	Mfr. Part No. SP4024-01FTG Mouser Part No 576-SP4024-01FTG	Littelfuse	ESD Protection Diodes / TVS Diodes 1.3pF 7A UNIDIRECTIONAL Learn More about Littelfuse sp402x arrays	Datasheet	386,070In Stock	Cut Tape $0.857 $0.466 $0.418 $0.356 Reel $0.228 View $0.343 $0.227 $0.214 $0.209 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 90V 3POLE RADIAL LEADS GDT GTCR36-900M-R10 Littelfuse 1: $4.42 1,182In 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	1,182In Stock	$4.42 $3.67 $3.39 $2.82 View $2.37 $2.22 $2.09 $1.96 $1.92	Min.: 1 Mult.: 1
Cartridge Fuses 250V 4A Slo-Blo 0313004.MXP Littelfuse 1: $2.43 5,979In Stock	Mfr. Part No. 0313004.MXP Mouser Part No 576-0313004.MXP	Littelfuse	Cartridge Fuses 250V 4A Slo-Blo Learn More about Littelfuse 6x32 3ab3ag fuseholders	Datasheet	5,979In Stock	$2.43 $2.03 $1.88 $1.55 View $1.30 $1.28 $1.09 $1.00	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
ESD Protection Diodes / TVS Diodes 1.5kW 440V 5% Bi-Directional SMCJ440CA Littelfuse 1: $1.89 7,563In Stock	Mfr. Part No. SMCJ440CA Mouser Part No 576-SMCJ440CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 440V 5% Bi-Directional Learn More about Littelfuse smcj tvs 1500w diodes	Datasheet	7,563In Stock	Cut Tape $1.89 $1.20 $0.953 $0.80 Reel $0.438 View $0.609 $0.601 $0.428 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Varistors 5.5 VDC .05J 21V-CL 185PF P V5.5MLA0402NR Littelfuse 1: $0.408 47,031In Stock 30,000Expected 22/12/2026	Mfr. Part No. V5.5MLA0402NR Mouser Part No 576-V5.5MLA0402NR	Littelfuse	Varistors 5.5 VDC .05J 21V-CL 185PF P Learn More about Littelfuse Littelfuse Varistors	Datasheet	47,031In Stock 30,000Expected 22/12/2026	Cut Tape $0.408 $0.252 $0.226 $0.214 View Reel $0.177 $0.207 $0.20 $0.192 $0.19 $0.177 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: $4.49 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
Thyristor Surge Protection Devices - TSPD 500A 90V P1100SCLRP Littelfuse 1: $2.52 20,065In Stock	Mfr. Part No. P1100SCLRP Mouser Part No 576-P1100SCLRP	Littelfuse	Thyristor Surge Protection Devices - TSPD 500A 90V Learn More about Littelfuse p 0s lrp thyristors	Datasheet	20,065In Stock	Cut Tape $2.52 $1.60 $0.885 $0.736 $0.685 Reel $0.685 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Varistors RADIAL VARISTOR 7MM ROHS/LEAD FREE V07E25PL2T Littelfuse 1: $0.394 9,292In Stock	Mfr. Part No. V07E25PL2T Mouser Part No 576-V07E25PL2T	Littelfuse	Varistors RADIAL VARISTOR 7MM ROHS/LEAD FREE Learn More about Littelfuse ultramov 7mm varistors	Datasheet	9,292In Stock	Cut Tape $0.394 $0.254 $0.245 Reel $0.245	Min.: 1 Mult.: 1 : 1,000
Cartridge Fuses 250V .15A Slo-Blo 3AG 0313.150MXP Littelfuse 1: $4.53 1,059In Stock	Mfr. Part No. 0313.150MXP Mouser Part No 576-0313.150MXP	Littelfuse	Cartridge Fuses 250V .15A Slo-Blo 3AG Learn More about Littelfuse 6x32 3ab3ag fuseholders	Datasheet	1,059In Stock	$4.53 $3.77 $3.47 $2.88 View $2.67 $2.39 $2.20 $2.01 $1.97	Min.: 1 Mult.: 1
Cartridge Fuses 250V .4A Slo-Blo 3AG 0313.400MXP Littelfuse 1: $2.75 1,675In Stock	Mfr. Part No. 0313.400MXP Mouser Part No 576-0313.400MXP	Littelfuse	Cartridge Fuses 250V .4A Slo-Blo 3AG Learn More about Littelfuse 6x32 3ab3ag fuseholders	Datasheet	1,675In Stock	$2.75 $2.28 $2.11 $1.75 View $1.62 $1.46 $1.33 $1.14	Min.: 1 Mult.: 1
Cartridge Fuses 32V 30A Slo-Blo 0313030.MXP Littelfuse 1: $3.05 1,732In Stock	Mfr. Part No. 0313030.MXP Mouser Part No 576-0313030.MXP	Littelfuse	Cartridge Fuses 32V 30A Slo-Blo Learn More about Littelfuse 6x32 3ab3ag fuseholders	Datasheet	1,732In Stock	$3.05 $2.53 $2.34 $1.94 View $1.80 $1.60 $1.48 $1.28	Min.: 1 Mult.: 1
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors STANDARD 75V NOM CG75LTR Littelfuse 1: $5.17 1,741In Stock	Mfr. Part No. CG75LTR Mouser Part No 576-CG75LTR	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors STANDARD 75V NOM	Datasheet	1,741In Stock	Cut Tape $5.17 $4.42 $4.08 $3.39 Reel $2.31 View $3.13 $2.80 $2.24 $2.09	Min.: 1 Mult.: 1 : 500
Thyristor Surge Protection Devices - TSPD 50A 275V P3100SALRP Littelfuse 1: $2.22 13,767In Stock	Mfr. Part No. P3100SALRP Mouser Part No 576-P3100SALRP	Littelfuse	Thyristor Surge Protection Devices - TSPD 50A 275V Learn More about Littelfuse p 0s lrp thyristors	Datasheet	13,767In Stock	Cut Tape $2.22 $1.41 $0.936 $0.736 $0.627 Reel $0.585 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
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
Cartridge Fuses 250V 3.2A Slo-Blo 031303.2MXP Littelfuse 1: $2.15 2,307In Stock	Mfr. Part No. 031303.2MXP Mouser Part No 576-031303.2MXP	Littelfuse	Cartridge Fuses 250V 3.2A Slo-Blo Learn More about Littelfuse 6x32 3ab3ag fuseholders	Datasheet	2,307In Stock	$2.15 $1.78 $1.65 $1.37 View $1.26 $1.13 $1.04 $0.87	Min.: 1 Mult.: 1
Cartridge Fuses 500Vac 400Vdc TL 5X20 800mA 0477.800MXP Littelfuse 1: $3.22 2,925In Stock	Mfr. Part No. 0477.800MXP Mouser Part No 576-0477.800MXP	Littelfuse	Cartridge Fuses 500Vac 400Vdc TL 5X20 800mA Learn More about Littelfuse battery management solutions	Datasheet	2,925In Stock	$3.22 $2.84 $2.62 $2.18 View $1.94 $1.81 $1.59 $1.44	Min.: 1 Mult.: 1
Thyristor Surge Protection Devices - TSPD 50A 65V P0720SALRP Littelfuse 1: $2.37 4,990In Stock	Mfr. Part No. P0720SALRP Mouser Part No 576-P0720SALRP	Littelfuse	Thyristor Surge Protection Devices - TSPD 50A 65V Learn More about Littelfuse p 0s lrp thyristors	Datasheet	4,990In Stock	Cut Tape $2.37 $1.50 $0.978 $0.775 $0.69 Reel $0.592 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 0603 32VDC .09pF XGD10603NR Littelfuse 1: $1.13 14,174In Stock	Mfr. Part No. XGD10603NR Mouser Part No 576-XGD10603NR	Littelfuse	ESD Protection Diodes / TVS Diodes 0603 32VDC .09pF Learn More about Littelfuse iot wearables protection	Datasheet	14,174In Stock	Cut Tape $1.13 $0.563 $0.491 $0.381 Reel $0.23 View $0.373 $0.341 $0.214 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
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
Cartridge Fuses 250V 6.3A Slo-Blo 031306.3MXP Littelfuse 1: $2.43 3,520In Stock	Mfr. Part No. 031306.3MXP Mouser Part No 576-031306.3MXP	Littelfuse	Cartridge Fuses 250V 6.3A Slo-Blo Learn More about Littelfuse 6x32 3ab3ag fuseholders	Datasheet	3,520In Stock	$2.43 $2.03 $1.88 $1.55 View $1.44 $1.29 $1.18 $1.00	Min.: 1 Mult.: 1
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
Thyristor Surge Protection Devices - TSPD 50A 170V P1800SALRP Littelfuse 1: $2.15 4,000In Stock	Mfr. Part No. P1800SALRP Mouser Part No 576-P1800SALRP	Littelfuse	Thyristor Surge Protection Devices - TSPD 50A 170V Learn More about Littelfuse p 0s lrp thyristors	Datasheet	4,000In Stock	Cut Tape $2.15 $1.35 $0.681 $0.592 Reel $0.592 MouseReel Available	Min.: 1 Mult.: 1 : 2,500