Circuit Protection – Mouser Ireland

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Ethernet ESD, Lightning, & Power Fault Protection

Littelfuse Ethernet/PoE ESD, EFT, Lightning, and Power Fault Protection ensures that the power fault overcurrent can be protected with Telelink fuses. The Ethernet Power Fault Protection includes the SMCJ and SP40 TVS Diode, SP3, SRV05xx, LC03xx, and SP40xx Diode Array, and the 0461xxx Fuse series. Littelfuse Ethernet/PoE ESD, EFT, Lightning, and Power Fault Protection products meet various applicable standards.

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Types of Circuit Protection

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) Filter the results in the table by unit price based on your quantity.	Qty.
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 263-437V GDT T/R 2 Term SG350Q Littelfuse 1: €1.11 18,190In Stock 8,000Expected 04/03/2027	Mfr. Part No. SG350Q Mouser Part No 576-SG350Q	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 263-437V GDT T/R 2 Term Learn More about Littelfuse sg series sgdt	Datasheet	18,190In Stock 8,000Expected 04/03/2027	Cut Tape €1.11 €1.02 €0.844 €0.778 View Reel €0.616 €0.70 €0.659 €0.616 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 300-500V 2A GDT T/R 2 Term SG400 Littelfuse 1: €1.11 4,016In Stock	Mfr. Part No. SG400 Mouser Part No 576-SG400	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 300-500V 2A GDT T/R 2 Term Learn More about Littelfuse sg series sgdt	Datasheet	4,016In Stock	Cut Tape €1.11 €1.02 €0.929 €0.814 Reel €0.662 View €0.759 €0.717 €0.673 €0.616 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 400-600V 2A GDT T/R 2 Term SG500Q Littelfuse 1: €1.17 3,430In Stock	Mfr. Part No. SG500Q Mouser Part No 576-SG500Q	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 400-600V 2A GDT T/R 2 Term	Datasheet	3,430In Stock	Cut Tape €1.17 €1.08 €0.894 €0.826 €0.748 Reel €0.748 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 63-117V 2A GDT T/R 2 Term SG90 Littelfuse 1: €1.23 6,139In Stock	Mfr. Part No. SG90 Mouser Part No 576-SG90	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 63-117V 2A GDT T/R 2 Term Learn More about Littelfuse SGGDT	Datasheet	6,139In Stock	Cut Tape €1.23 €1.14 €0.937 €0.869 View Reel €0.616 €0.777 €0.716 €0.66 €0.616 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP 5X5 90V Minitube 2 Term SL0902A090SM Littelfuse 1: €2.31 6,298In Stock	Mfr. Part No. SL0902A090SM Mouser Part No 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 €2.31 €1.96 €1.81 €1.50 View Reel €1.32 €1.38 €1.32 €1.32 MouseReel Available	Min.: 1 Mult.: 1 : 900
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP 5X5 230V Minitube 2 Term SL0902A230SM Littelfuse 1: €2.31 1,721In Stock	Mfr. Part No. SL0902A230SM Mouser Part No 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 €2.31 €1.96 €1.81 €1.59 Reel €1.08 View €1.42 €1.38 €1.15 €1.03 MouseReel Available	Min.: 1 Mult.: 1 : 900
ESD Protection Diodes / TVS Diodes 4 Ch 12kV 5V TVS Diode Array SP0504SHTG Littelfuse 1: €0.834 22,658In Stock 15,000Expected 08/03/2027	Mfr. Part No. SP0504SHTG Mouser Part No 576-SP0504SHTG	Littelfuse	ESD Protection Diodes / TVS Diodes 4 Ch 12kV 5V TVS Diode Array Learn More about Littelfuse general esd tvs diodes	Datasheet	22,658In Stock 15,000Expected 08/03/2027	Cut Tape €0.834 €0.382 €0.337 €0.259 Reel €0.237 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 2 Ch 8KV 5V .65pF Low Cap SP3003-02UTG Littelfuse 1: €1.08 9,165In Stock	Mfr. Part No. SP3003-02UTG Mouser Part No 576-SP3003-02UTG	Littelfuse	ESD Protection Diodes / TVS Diodes 2 Ch 8KV 5V .65pF Low Cap Learn More about Littelfuse low capacitance esd spa diodes	Datasheet	9,165In Stock	Cut Tape €1.08 €0.689 €0.544 €0.467 View Reel €0.271 €0.364 €0.335 €0.271 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 4 Ch 8kV 0.65pF SPA SP3003-04JTG Littelfuse 1: €1.13 9,989In Stock 12,000Expected 08/03/2027	Mfr. Part No. SP3003-04JTG Mouser Part No 576-SP3003-04JTG	Littelfuse	ESD Protection Diodes / TVS Diodes 4 Ch 8kV 0.65pF SPA Learn More about Littelfuse low capacitance esd spa diodes	Datasheet	9,989In Stock 12,000Expected 08/03/2027	Cut Tape €1.13 €0.706 €0.524 €0.465 View Reel €0.243 €0.361 €0.31 €0.243 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 4 channels .65pF SP3003-04XTG Littelfuse 1: €1.14 21,000Expected 09/03/2027	Mfr. Part No. SP3003-04XTG Mouser Part No 576-SP3003-04XTG	Littelfuse	ESD Protection Diodes / TVS Diodes 4 channels .65pF Learn More about Littelfuse low capacitance esd spa diodes	Datasheet	21,000Expected 09/03/2027	Cut Tape €1.14 €0.643 €0.534 €0.428 €0.338 Reel €0.265 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 4 Ch, 12kV, 0.85pF SOT5630 SP3004-04XTG Littelfuse 1: €1.10 6,548In Stock 21,000On Order	Mfr. Part No. SP3004-04XTG Mouser Part No 576-SP3004-04XTG	Littelfuse	ESD Protection Diodes / TVS Diodes 4 Ch, 12kV, 0.85pF SOT5630	Datasheet	6,548In Stock 21,000On Order On Order Ship Dates Mfr. No: SP3004-04XTG Stock: 6,548 Can Dispatch Immediately On Order: 9,000 Expected 02/03/2027 12,000 Expected 08/03/2027 Factory Lead Time: 19 Weeks	Cut Tape €1.10 €0.635 €0.513 €0.422 View Reel €0.251 €0.334 €0.301 €0.251 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 2 CH 8KV 0.5pF SP3006-02XTG Littelfuse 1: €1.46 3,585In Stock	Mfr. Part No. SP3006-02XTG Mouser Part No 576-SP3006-02XTG	Littelfuse	ESD Protection Diodes / TVS Diodes 2 CH 8KV 0.5pF	Datasheet	3,585In Stock	Cut Tape €1.46 €0.929 €0.717 €0.589 Reel €0.388 View €0.476 €0.464 €0.37 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 0.3pF SOT23-6L 4 Ch Diode Array SP3019-04HTG Littelfuse 1: €0.903 10,686In Stock	Mfr. Part No. SP3019-04HTG Mouser Part No 576-SP3019-04HTG	Littelfuse	ESD Protection Diodes / TVS Diodes 0.3pF SOT23-6L 4 Ch Diode Array Learn More about Littelfuse sp3019 diodes	Datasheet	10,686In Stock	Cut Tape €0.903 €0.415 €0.367 €0.283 €0.275 Reel €0.22 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 0.35pF 20kV BIDIRECTIONAL SP3022-01ETG Littelfuse 1: €0.576 12,560In Stock 20,000Expected 08/02/2027	Mfr. Part No. SP3022-01ETG Mouser Part No 576-SP3022-01ETG	Littelfuse	ESD Protection Diodes / TVS Diodes 0.35pF 20kV BIDIRECTIONAL Learn More about Littelfuse sp3022 diodes	Datasheet	12,560In Stock 20,000Expected 08/02/2027	Cut Tape €0.576 €0.261 €0.229 €0.173 View Reel €0.102 €0.153 €0.151 €0.102 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes 5V 1uA 10kV UNIDIRECTIONAL SP3031-01ETG Littelfuse 1: €0.275 16,497In Stock 110,000On Order	Mfr. Part No. SP3031-01ETG Mouser Part No 576-SP3031-01ETG	Littelfuse	ESD Protection Diodes / TVS Diodes 5V 1uA 10kV UNIDIRECTIONAL	Datasheet	16,497In Stock 110,000On Order On Order Ship Dates Mfr. No: SP3031-01ETG Stock: 16,497 Can Dispatch Immediately On Order: 60,000 Expected 11/11/2026 50,000 Expected 07/12/2026 Factory Lead Time: 19 Weeks	Cut Tape €0.275 €0.122 €0.107 €0.096 Reel €0.096 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes .3pF 10KV 18V SOD8820 SP3118-01ETG Littelfuse 1: €0.542 54,780In Stock	Mfr. Part No. SP3118-01ETG Mouser Part No 576-SP3118-01ETG	Littelfuse	ESD Protection Diodes / TVS Diodes .3pF 10KV 18V SOD8820 Learn More about Littelfuse sp3118 arrays	Datasheet	54,780In Stock	Cut Tape €0.542 €0.244 €0.215 €0.163 View Reel €0.094 €0.157 €0.14 €0.138 €0.094 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes 4CH 15A 3.3V 3.5pF Lightning Protection SP3312TUTG Littelfuse 1: €1.57 5,616In Stock 9,000Expected 04/03/2027	Mfr. Part No. SP3312TUTG Mouser Part No 576-SP3312TUTG	Littelfuse	ESD Protection Diodes / TVS Diodes 4CH 15A 3.3V 3.5pF Lightning Protection Learn More about Littelfuse sp3312t series	Datasheet	5,616In Stock 9,000Expected 04/03/2027	Cut Tape €1.57 €0.998 €0.744 €0.664 View Reel €0.407 €0.523 €0.457 €0.407 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 3.3V 40A AEC-Q101 SP3374NUTG Littelfuse 1: €2.12 16,603In Stock 12,000Expected 10/11/2026	Mfr. Part No. SP3374NUTG Mouser Part No 576-SP3374NUTG	Littelfuse	ESD Protection Diodes / TVS Diodes 3.3V 40A AEC-Q101 Learn More about Littelfuse sp3374nutg diodes	Datasheet	16,603In Stock 12,000Expected 10/11/2026	Cut Tape €2.12 €1.37 €1.03 €0.929 View Reel €0.712 €0.74 €0.712 €0.712 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1pF uDFN-6L 2 Ch Diode Array SP3400-02UTG Littelfuse 1: €0.946 19,329In Stock	Mfr. Part No. SP3400-02UTG Mouser Part No 576-SP3400-02UTG	Littelfuse	ESD Protection Diodes / TVS Diodes 1pF uDFN-6L 2 Ch Diode Array Learn More about Littelfuse lightning tvs spa diodes	Datasheet	19,329In Stock	Cut Tape €0.946 €0.438 €0.388 €0.299 €0.288 Reel €0.215 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 0.2pF 22kV DFN-5 SP3422-04UTG Littelfuse 1: €0.482 45,685In Stock	Mfr. Part No. SP3422-04UTG Mouser Part No 576-SP3422-04UTG	Littelfuse	ESD Protection Diodes / TVS Diodes 0.2pF 22kV DFN-5 Learn More about Littelfuse sp3422 tvs diode arrays	Datasheet	45,685In Stock	Cut Tape €0.482 €0.221 €0.194 €0.145 €0.142 Reel €0.095 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1 Ch 22kV 9.2V .15pF 0201 DFN SP3522-01UTG Littelfuse 1: €0.335 39,999In Stock	Mfr. Part No. SP3522-01UTG Mouser Part No 576-SP3522-01UTG	Littelfuse	ESD Protection Diodes / TVS Diodes 1 Ch 22kV 9.2V .15pF 0201 DFN Learn More about Littelfuse sp3522	Datasheet	39,999In Stock	Cut Tape €0.335 €0.149 €0.128 €0.096 View Reel €0.055 €0.086 €0.075 €0.071 €0.055 €0.055 MouseReel Available	Min.: 1 Mult.: 1 : 15,000
ESD Protection Diodes / TVS Diodes 1 Ch 22kV 8.2V .3pF UNI SOD882 SP3530-01ETG Littelfuse 1: €0.361 61,045In Stock	Mfr. Part No. SP3530-01ETG Mouser Part No 576-SP3530-01ETG	Littelfuse	ESD Protection Diodes / TVS Diodes 1 Ch 22kV 8.2V .3pF UNI SOD882 Learn More about Littelfuse sp3530	Datasheet	61,045In Stock	Cut Tape €0.361 €0.161 €0.14 €0.104 View Reel €0.057 €0.089 €0.077 €0.073 €0.057 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes 1.3pF 12A BIDIRECTIONAL SP4023-01FTG-C Littelfuse 1: €0.886 30,880In Stock 27,000Expected 01/03/2027	Mfr. Part No. SP4023-01FTG-C Mouser Part No 576-SP4023-01FTG-C	Littelfuse	ESD Protection Diodes / TVS Diodes 1.3pF 12A BIDIRECTIONAL Learn More about Littelfuse sp402x arrays	Datasheet	30,880In Stock 27,000Expected 01/03/2027	Cut Tape €0.886 €0.441 €0.359 €0.27 Reel €0.193 View €0.254 €0.187 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5pF 30kV SP4044-04ATG Littelfuse 1: €1.47 5,805In Stock 8,000Expected 09/03/2027	Mfr. Part No. SP4044-04ATG Mouser Part No 576-SP4044-04ATG	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5pF 30kV Learn More about Littelfuse SP4044 SP4045 TVS diode arrays	Datasheet	5,805In Stock 8,000Expected 09/03/2027	Cut Tape €1.47 €0.955 €0.752 €0.654 View Reel €0.412 €0.515 €0.463 €0.412 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
ESD Protection Diodes / TVS Diodes 1.5pF 30kV SP4045-04ATG Littelfuse 1: €1.44 13,222In Stock	Mfr. Part No. SP4045-04ATG Mouser Part No 576-SP4045-04ATG	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5pF 30kV Learn More about Littelfuse SP4044 SP4045 TVS diode arrays	Datasheet	13,222In Stock	Cut Tape €1.44 €0.946 €0.705 €0.603 View Reel €0.378 €0.465 €0.426 €0.378 MouseReel Available	Min.: 1 Mult.: 1 : 4,000