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.
ESD Protection Diodes / TVS Diodes 1.3pF 7A UNIDIRECTIONAL SP4024-01FTG Littelfuse 1: £0.526 386,214In 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	386,214In Stock	Cut Tape £0.526 £0.292 £0.243 £0.196 £0.189 Reel £0.144 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 150V Hi Rel 5% Bi-Directional SMCJ150CA-HRAT7 Littelfuse 1: £17.91 319In Stock	Mfr. Part No. SMCJ150CA-HRAT7 Mouser Part No 576-SMCJ150CA-HRAT7	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 150V Hi Rel 5% Bi-Directional Learn More about Littelfuse smcj hr a tvs diodes	Datasheet	319In Stock	Cut Tape £17.91 £14.18 £13.06 £12.18 Reel £12.18 MouseReel Available	Min.: 1 Mult.: 1 : 500
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STANDARD 600V NOMINAL CG5600L Littelfuse 1: £2.07 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 £2.07 £1.86 £1.74 £1.44 Reel £0.925 View £1.26 £1.18 £0.995 £0.908	Min.: 1 Mult.: 1 : 1,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 315-525V 2A GDT T/R 2 Term SG420 Littelfuse 1: £1.07 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 £1.07 £0.803 £0.675 £0.615 View Reel £0.489 £0.581 £0.532 £0.501 £0.489 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors STANDARD 90V NOM CG590L Littelfuse 1: £2.62 3,349In Stock	Mfr. Part No. CG590L Mouser Part No 576-CG590L	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors STANDARD 90V NOM	Datasheet	3,349In Stock	Cut Tape £2.62 £2.17 £2.01 £1.67 View Reel £1.07 £1.54 £1.38 £1.27 £1.07	Min.: 1 Mult.: 1 : 1,000
ESD Protection Diodes / TVS Diodes 4 Ch 8kV 0.65pF SPA SP3003-04ATG Littelfuse 1: £1.75 4,775In Stock	Mfr. Part No. SP3003-04ATG Mouser Part No 576-SP3003-04ATG	Littelfuse	ESD Protection Diodes / TVS Diodes 4 Ch 8kV 0.65pF SPA Learn More about Littelfuse low capacitance esd spa diodes	Datasheet	4,775In Stock	Cut Tape £1.75 £0.925 £0.759 £0.655 View Reel £0.47 £0.555 £0.532 £0.47 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
ESD Protection Diodes / TVS Diodes 2CH 5V 2A 0.2pF SP3423-02UTG Littelfuse 1: £0.751 8,344In Stock	Mfr. Part No. SP3423-02UTG Mouser Part No 576-SP3423-02UTG	Littelfuse	ESD Protection Diodes / TVS Diodes 2CH 5V 2A 0.2pF Learn More about Littelfuse sp3423 tvs diode	Datasheet	8,344In Stock	Cut Tape £0.751 £0.343 £0.273 £0.206 £0.197 Reel £0.163 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 263-437V 2A GDT T/R 2 Term SG350 Littelfuse 1: £1.07 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 £1.07 £0.995 £0.818 £0.759 View Reel £0.489 £0.678 £0.626 £0.58 £0.489 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Surface Mount Fuses 600VAC 2A .045ohms 461 NANO2 0461002.ER Littelfuse 1: £1.42 24,087In Stock	Mfr. Part No. 0461002.ER Mouser Part No 576-0461002.ER	Littelfuse	Surface Mount Fuses 600VAC 2A .045ohms 461 NANO2 Learn More about Littelfuse 461 telelink fuses	Datasheet	24,087In Stock	Cut Tape £1.42 £1.20 £0.995 £0.899 View Reel £0.744 £0.826 £0.759 £0.744 £0.744 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Surface Mount Fuses 600VAC 1.25A .104ohms 461 NANO2 04611.25ER Littelfuse 1: £1.50 64,586In Stock	Mfr. Part No. 04611.25ER Mouser Part No 576-04611.25ER	Littelfuse	Surface Mount Fuses 600VAC 1.25A .104ohms 461 NANO2 Learn More about Littelfuse 461 telelink fuses	Datasheet	64,586In Stock	Cut Tape £1.50 £1.25 £1.09 £0.986 Reel £0.583 View £0.856 £0.766 £0.683 £0.511 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 3.3V 1uA 30kV ESD Contact LC03-3.3BTG Littelfuse 1: £2.63 33,348In Stock 30,000Expected 29/12/2026	Mfr. Part No. LC03-3.3BTG Mouser Part No 576-LC03-3.3BTG	Littelfuse	ESD Protection Diodes / TVS Diodes 3.3V 1uA 30kV ESD Contact Learn More about Littelfuse lc03	Datasheet	33,348In Stock 30,000Expected 29/12/2026	Cut Tape £2.63 £1.72 £1.37 £1.23 View Reel £0.969 £0.995 £0.969 £0.969 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 4 channels .65pF 8kV SP3001-04JTG Littelfuse 1: £0.986 80,868In Stock 60,000Expected 30/12/2026	Mfr. Part No. SP3001-04JTG Mouser Part No 576-SP3001-04JTG	Littelfuse	ESD Protection Diodes / TVS Diodes 4 channels .65pF 8kV	Datasheet	80,868In Stock 60,000Expected 30/12/2026	Cut Tape £0.986 £0.564 £0.457 £0.406 View Reel £0.225 £0.315 £0.271 £0.225 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 2 channels .65pF SP3003-02XTG Littelfuse 1: £1.27 64,375In Stock 45,000Expected 18/02/2027	Mfr. Part No. SP3003-02XTG Mouser Part No 576-SP3003-02XTG	Littelfuse	ESD Protection Diodes / TVS Diodes 2 channels .65pF Learn More about Littelfuse low capacitance esd spa diodes	Datasheet	64,375In Stock 45,000Expected 18/02/2027	Cut Tape £1.27 £0.811 £0.603 £0.539 View Reel £0.323 £0.421 £0.362 £0.323 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 8 Ch 8kV 0.65pF SPA SP3003-08ATG Littelfuse 1: £1.44 51,294In Stock	Mfr. Part No. SP3003-08ATG Mouser Part No 576-SP3003-08ATG	Littelfuse	ESD Protection Diodes / TVS Diodes 8 Ch 8kV 0.65pF SPA Learn More about Littelfuse low capacitance esd spa diodes	Datasheet	51,294In Stock	Cut Tape £1.44 £0.917 £0.688 £0.614 Reel £0.402 View £0.485 £0.43 £0.377 £0.36 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
ESD Protection Diodes / TVS Diodes 4 Ch 8kV 6V .45pF SP3010-04UTG Littelfuse 1: £1.16 151,808In Stock	Mfr. Part No. SP3010-04UTG Mouser Part No 576-SP3010-04UTG	Littelfuse	ESD Protection Diodes / TVS Diodes 4 Ch 8kV 6V .45pF Learn More about Littelfuse LittelfuseSP3010	Datasheet	151,808In Stock	Cut Tape £1.16 £0.732 £0.546 £0.461 View Reel £0.267 £0.373 £0.34 £0.267 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 6 Ch 8kV 6V 0.4 pF SP3011-06UTG Littelfuse 1: £1.37 50,421In Stock	Mfr. Part No. SP3011-06UTG Mouser Part No 576-SP3011-06UTG	Littelfuse	ESD Protection Diodes / TVS Diodes 6 Ch 8kV 6V 0.4 pF	Datasheet	50,421In Stock	Cut Tape £1.37 £0.803 £0.632 £0.55 View Reel £0.333 £0.441 £0.399 £0.333 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.3pF 15A BIDIRECTIONAL SP4022-01FTG-C Littelfuse 1: £0.705 106,599In Stock	Mfr. Part No. SP4022-01FTG-C Mouser Part No 576-SP4022-01FTG-C	Littelfuse	ESD Protection Diodes / TVS Diodes 1.3pF 15A BIDIRECTIONAL Learn More about Littelfuse sp402x arrays	Datasheet	106,599In Stock	Cut Tape £0.705 £0.321 £0.284 £0.217 £0.215 Reel £0.163 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes .3pF 10KV 28V 0201 Flipchip SP3130-01WTG Littelfuse 1: £0.473 31,378In Stock	Mfr. Part No. SP3130-01WTG Mouser Part No 576-SP3130-01WTG	Littelfuse	ESD Protection Diodes / TVS Diodes .3pF 10KV 28V 0201 Flipchip Learn More about Littelfuse sp3130 diode arrays	Datasheet	31,378In Stock	Cut Tape £0.473 £0.213 £0.188 £0.142 View Reel £0.082 £0.132 £0.122 £0.12 £0.082 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
Surface Mount Fuses 600VAC 0.5A .56ohms 461 NANO2 0461.500ER Littelfuse 1: £1.89 2,457In Stock 10,000On Order	Mfr. Part No. 0461.500ER Mouser Part No 576-0461.500ER	Littelfuse	Surface Mount Fuses 600VAC 0.5A .56ohms 461 NANO2 Learn More about Littelfuse 461 telelink fuses	Datasheet	2,457In Stock 10,000On Order On Order Ship Dates Mfr. No: 0461.500ER Stock: 2,457 Can Dispatch Immediately On Order: 5,000 Expected 25/02/2027 5,000 Expected 30/03/2027 Factory Lead Time: 19 Weeks	Cut Tape £1.89 £1.70 £1.58 £1.31 View Reel £0.856 £1.20 £1.08 £0.995 £0.925 £0.856 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 90V NOMINAL GP S.A. STANDARD CG590LTR Littelfuse 1: £2.20 1,004In Stock	Mfr. Part No. CG590LTR Mouser Part No 576-CG590LTR	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 90V NOMINAL GP S.A. STANDARD	Datasheet	1,004In Stock	Cut Tape £2.20 £1.82 £1.69 £1.41 View Reel £1.09 £1.29 £1.16 £1.09	Min.: 1 Mult.: 1 : 1,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 230V SMD Ultra Low 0.3pF CG6230SM Littelfuse 1: £2.03 28In Stock	Mfr. Part No. CG6230SM Mouser Part No 576-CG6230SM	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 230V SMD Ultra Low 0.3pF Learn More about Littelfuse CG6 CG7 SMD gas discharge tubes	Datasheet	28In Stock	Cut Tape £2.03 £1.98 £1.83 £1.52 View Reel £0.978 £1.34 £1.26 £1.10 £0.995 £0.978 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 75V SMD Ultra Low 0.3pF CG675SM Littelfuse 1: £1.99 1,419In Stock 4,000Expected 14/12/2026	Mfr. Part No. CG675SM Mouser Part No 576-CG675SM	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 75V SMD Ultra Low 0.3pF Learn More about Littelfuse CG6 CG7 SMD gas discharge tubes	Datasheet	1,419In Stock 4,000Expected 14/12/2026	Cut Tape £1.99 £1.65 £1.53 £1.27 View Reel £0.978 £1.17 £1.05 £0.995 £0.978 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 200V Square SG SG200 Littelfuse 1: £1.07 2,016In Stock	Mfr. Part No. SG200 Mouser Part No 576-SG200	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 200V Square SG	Datasheet	2,016In 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 263-437V GDT T/R 2 Term SG350Q Littelfuse 1: £0.969 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 £0.969 £0.89 £0.737 £0.679 View Reel £0.538 £0.611 £0.575 £0.538 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: £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