Circuit Protection – Mouser United Kingdom

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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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (GBP) Filter the results in the table by unit price based on your quantity.	Qty.
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 300-500V 2A GDT T/R 2 Term SG400 Littelfuse 1: £0.969 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 £0.969 £0.89 £0.811 £0.711 Reel £0.578 View £0.663 £0.626 £0.588 £0.538 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: £1.02 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 £1.02 £0.943 £0.78 £0.721 £0.653 Reel £0.653 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: £1.07 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 £1.07 £0.995 £0.818 £0.759 View Reel £0.538 £0.678 £0.625 £0.576 £0.538 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP 5X5 90V Minitube 2 Term SL0902A090SM Littelfuse 1: £2.02 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 £2.02 £1.71 £1.58 £1.31 View Reel £1.09 £1.20 £1.09 £1.09 MouseReel Available	Min.: 1 Mult.: 1 : 900
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP 5X5 230V Minitube 2 Term SL0902A230SM Littelfuse 1: £2.02 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 £2.02 £1.71 £1.58 £1.39 Reel £0.943 View £1.24 £1.20 £1.00 £0.899 MouseReel Available	Min.: 1 Mult.: 1 : 900
ESD Protection Diodes / TVS Diodes 4 Ch 12kV 5V TVS Diode Array SP0504SHTG Littelfuse 1: £0.728 23,043In Stock	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	23,043In Stock	Cut Tape £0.728 £0.333 £0.294 £0.226 Reel £0.207 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 4 channels 1.1pF 15kV SP3002-04JTG Littelfuse 1: £0.943 51,033In Stock 151,785On Order	Mfr. Part No. SP3002-04JTG Mouser Part No 576-SP3002-04JTG	Littelfuse	ESD Protection Diodes / TVS Diodes 4 channels 1.1pF 15kV	Datasheet	51,033In Stock 151,785On Order On Order Ship Dates Mfr. No: SP3002-04JTG Stock: 51,033 Can Dispatch Immediately On Order: 45,000 Expected 05/11/2026 106,785 Expected 06/11/2026 Factory Lead Time: 19 Weeks	Cut Tape £0.943 £0.439 £0.389 £0.302 Reel £0.245 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 2 Ch 8KV 5V .65pF Low Cap SP3003-02UTG Littelfuse 1: £0.952 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 £0.952 £0.608 £0.475 £0.412 View Reel £0.237 £0.32 £0.285 £0.237 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 4 Ch 8kV 0.65pF SPA SP3003-04JTG Littelfuse 1: £0.986 16,889In Stock	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	16,889In Stock	Cut Tape £0.986 £0.616 £0.457 £0.406 View Reel £0.212 £0.315 £0.271 £0.212 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 4 channels .65pF SP3003-04XTG Littelfuse 1: £0.995 17,157In Stock	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	17,157In Stock	Cut Tape £0.995 £0.561 £0.466 £0.374 £0.295 Reel £0.231 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 4 Ch, 12kV, 0.85pF SOT5630 SP3004-04XTG Littelfuse 1: £0.96 6,548In Stock 9,000Expected 02/03/2027	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 9,000Expected 02/03/2027	Cut Tape £0.96 £0.554 £0.448 £0.368 View Reel £0.219 £0.292 £0.263 £0.219 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 2 CH 8KV 0.5pF SP3006-02XTG Littelfuse 1: £1.27 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 £1.27 £0.811 £0.626 £0.514 Reel £0.339 View £0.416 £0.405 £0.323 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: £0.788 10,986In 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	10,986In Stock	Cut Tape £0.788 £0.362 £0.32 £0.247 £0.24 Reel £0.192 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 0.35pF 20kV BIDIRECTIONAL SP3022-01ETG Littelfuse 1: £0.503 12,565In 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	12,565In Stock 20,000Expected 08/02/2027	Cut Tape £0.503 £0.228 £0.20 £0.151 View Reel £0.089 £0.134 £0.132 £0.089 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes 5V 1uA 10kV UNIDIRECTIONAL SP3031-01ETG Littelfuse 1: £0.24 28,608In 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	28,608In Stock 110,000On Order On Order Ship Dates Mfr. No: SP3031-01ETG Stock: 28,608 Can Dispatch Immediately On Order: 60,000 Expected 05/11/2026 50,000 Expected 07/12/2026 Factory Lead Time: 19 Weeks	Cut Tape £0.24 £0.107 £0.093 £0.084 Reel £0.084 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes .3pF 10KV 18V SOD8820 SP3118-01ETG Littelfuse 1: £0.473 56,605In 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	56,605In Stock	Cut Tape £0.473 £0.213 £0.188 £0.142 View Reel £0.082 £0.137 £0.122 £0.12 £0.082 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes 4CH 15A 3.3V 3.5pF Lightning Protection SP3312TUTG Littelfuse 1: £1.37 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 £1.37 £0.871 £0.65 £0.58 View Reel £0.355 £0.457 £0.399 £0.355 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 3.3V 40A AEC-Q101 SP3374NUTG Littelfuse 1: £1.85 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 £1.85 £1.20 £0.899 £0.811 View Reel £0.622 £0.646 £0.622 £0.622 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1pF uDFN-6L 2 Ch Diode Array SP3400-02UTG Littelfuse 1: £0.826 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 £0.826 £0.382 £0.339 £0.261 £0.251 Reel £0.188 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 0.2pF 22kV DFN-5 SP3422-04UTG Littelfuse 1: £0.421 45,710In 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	45,710In Stock	Cut Tape £0.421 £0.193 £0.169 £0.127 £0.124 Reel £0.083 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: £0.292 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 £0.292 £0.13 £0.112 £0.084 View Reel £0.048 £0.075 £0.065 £0.062 £0.048 £0.048 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: £0.315 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 £0.315 £0.141 £0.122 £0.091 View Reel £0.05 £0.078 £0.067 £0.064 £0.05 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes 1.3pF 12A BIDIRECTIONAL SP4023-01FTG-C Littelfuse 1: £0.773 31,280In 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	31,280In Stock 27,000Expected 01/03/2027	Cut Tape £0.773 £0.385 £0.313 £0.236 Reel £0.168 View £0.222 £0.163 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5pF 30kV SP4044-04ATG Littelfuse 1: £1.28 5,805In Stock	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	Cut Tape £1.28 £0.834 £0.656 £0.571 View Reel £0.36 £0.45 £0.404 £0.36 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
ESD Protection Diodes / TVS Diodes 1.5pF 30kV SP4045-04ATG Littelfuse 1: £1.26 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 £1.26 £0.826 £0.615 £0.526 View Reel £0.33 £0.406 £0.372 £0.33 MouseReel Available	Min.: 1 Mult.: 1 : 4,000