Circuit Protection – Mouser Denmark

.hide-partial { max-height: none; } .show-more { display: none; }

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.

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Types of Circuit Protection

List Images

Results: 312

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (DKK) Filter the results in the table by unit price based on your quantity.	Qty.
ESD Protection Diodes / TVS Diodes 3.3V Diode Array SP4042-02UTG Littelfuse 1: 30,51 kr. 2.675In Stock 15.000On Order	Mfr. Part No. SP4042-02UTG Mouser Part No 576-SP4042-02UTG	Littelfuse	ESD Protection Diodes / TVS Diodes 3.3V Diode Array Learn More about Littelfuse SP4042 TVS diodes	Datasheet	2.675In Stock 15.000On Order On Order Ship Dates Mfr. No: SP4042-02UTG Stock: 2.675 Can Dispatch Immediately On Order: 6.000 Expected 05/11/2026 9.000 Expected 23/02/2027 Factory Lead Time: 19 Weeks	Cut Tape 30,51 kr. 20,07 kr. 16,41 kr. 13,88 kr. 12,38 kr. Reel 12,38 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.5pF 30kV SP4044-04ATG Littelfuse 1: 10,97 kr. 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 10,97 kr. 7,12 kr. 5,61 kr. 4,88 kr. View Reel 3,07 kr. 3,84 kr. 3,55 kr. 3,07 kr. MouseReel Available	Min.: 1 Mult.: 1 : 4.000
ESD Protection Diodes / TVS Diodes 1.5pF 30kV SP4045-04ATG Littelfuse 1: 10,74 kr. 14.022In 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	14.022In Stock	Cut Tape 10,74 kr. 7,06 kr. 5,26 kr. 4,50 kr. View Reel 2,82 kr. 3,42 kr. 3,18 kr. 2,82 kr. MouseReel Available	Min.: 1 Mult.: 1 : 4.000
ESD Protection Diodes / TVS Diodes 8 Ch 30kV 2.5V 4.4pF SP4060-08ATG Littelfuse 1: 14,47 kr. 2.695In Stock	Mfr. Part No. SP4060-08ATG Mouser Part No 576-SP4060-08ATG	Littelfuse	ESD Protection Diodes / TVS Diodes 8 Ch 30kV 2.5V 4.4pF Learn More about Littelfuse lightning tvs spa diodes	Datasheet	2.695In Stock	Cut Tape 14,47 kr. 9,18 kr. 7,38 kr. 6,17 kr. Reel 4,05 kr. View 4,95 kr. 4,42 kr. 3,89 kr. 3,71 kr. MouseReel Available	Min.: 1 Mult.: 1 : 4.000
ESD Protection Diodes / TVS Diodes ESD 6V UNI SRV05-4HTG-D Littelfuse 1: 9,55 kr. 12.842In Stock 108.000On Order	Mfr. Part No. SRV05-4HTG-D Mouser Part No 576-SRV05-4HTG-D	Littelfuse	ESD Protection Diodes / TVS Diodes ESD 6V UNI Learn More about Littelfuse srv05 diode arrays	Datasheet	12.842In Stock 108.000On Order On Order Ship Dates Mfr. No: SRV05-4HTG-D Stock: 12.842 Can Dispatch Immediately On Order: 27.000 Expected 07/12/2026 36.000 Expected 23/12/2026 45.000 Expected 03/02/2027 Factory Lead Time: 29 Weeks	Cut Tape 9,55 kr. 6,09 kr. 4,56 kr. 3,84 kr. 3,16 kr. Reel 2,30 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes .3pF 10KV 18V 0201 Flipchip SP3118-01WTG Littelfuse 1: 4,04 kr. 6.591In Stock	Mfr. Part No. SP3118-01WTG Mouser Part No 576-SP3118-01WTG	Littelfuse	ESD Protection Diodes / TVS Diodes .3pF 10KV 18V 0201 Flipchip Learn More about Littelfuse sp3118 arrays	Datasheet	6.591In Stock	Cut Tape 4,04 kr. 1,82 kr. 1,60 kr. 1,22 kr. View Reel 0,701 kr. 1,13 kr. 1,04 kr. 1,03 kr. 0,701 kr. MouseReel Available	Min.: 1 Mult.: 1 : 10.000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP BIPOLAR SURGE ARRESTOR MS CG5230MS Littelfuse 1: 20,14 kr. 353In Stock	Mfr. Part No. CG5230MS Mouser Part No 576-CG5230MS	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP BIPOLAR SURGE ARRESTOR MS	Datasheet	353In Stock	Cut Tape 20,14 kr. 16,71 kr. 15,44 kr. 12,83 kr. Reel 10,29 kr. View 11,79 kr. 10,82 kr. 10,67 kr. 10,15 kr. MouseReel Available	Min.: 1 Mult.: 1 : 900
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors STANDARD 350V NOM CG5350L Littelfuse 1: 22,38 kr. 788In Stock	Mfr. Part No. CG5350L Mouser Part No 576-CG5350L	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors STANDARD 350V NOM	Datasheet	788In Stock	Cut Tape 22,38 kr. 18,58 kr. 17,16 kr. 14,25 kr. View Reel 10,07 kr. 13,13 kr. 11,79 kr. 10,89 kr. 10,07 kr.	Min.: 1 Mult.: 1 : 1.000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN 90V CG590LS Littelfuse 1: 17,38 kr. 668In Stock	Mfr. Part No. CG590LS Mouser Part No 576-CG590LS	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN 90V	Datasheet	668In Stock	Cut Tape 17,38 kr. 14,47 kr. 13,35 kr. 11,04 kr. View Reel 8,50 kr. 10,22 kr. 9,18 kr. 8,50 kr.	Min.: 1 Mult.: 1 : 900
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors STANDARD 90V MS CG590MS Littelfuse 1: 20,81 kr. 56In Stock 900Expected 10/12/2026	Mfr. Part No. CG590MS Mouser Part No 576-CG590MS	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors STANDARD 90V MS	Datasheet	56In Stock 900Expected 10/12/2026	Cut Tape 20,81 kr. 17,75 kr. 16,34 kr. 13,58 kr. View Reel 10,07 kr. 12,53 kr. 11,41 kr. 10,07 kr. 10,07 kr. MouseReel Available	Min.: 1 Mult.: 1 : 900
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 90V SMD Ultra Low 0.3pF CG690SM Littelfuse 1: 17,01 kr. 381In Stock 2.000Expected 25/01/2027	Mfr. Part No. CG690SM Mouser Part No 576-CG690SM	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 90V SMD Ultra Low 0.3pF Learn More about Littelfuse CG6 CG7 SMD gas discharge tubes	Datasheet	381In Stock 2.000Expected 25/01/2027	Cut Tape 17,01 kr. 14,10 kr. 13,06 kr. 10,82 kr. View Reel 7,68 kr. 10,00 kr. 9,18 kr. 7,91 kr. 7,68 kr. MouseReel Available	Min.: 1 Mult.: 1 : 2.000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 172-288V 2A GDT T/R 2 Term SG230 Littelfuse 1: 9,18 kr. 343In Stock 4.000Expected 24/02/2027	Mfr. Part No. SG230 Mouser Part No 576-SG230	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 172-288V 2A GDT T/R 2 Term Learn More about Littelfuse sg series sgdt	Datasheet	343In Stock 4.000Expected 24/02/2027	Cut Tape 9,18 kr. 8,50 kr. 6,99 kr. 6,48 kr. View Reel 4,60 kr. 5,80 kr. 5,34 kr. 4,92 kr. 4,60 kr. MouseReel Available	Min.: 1 Mult.: 1 : 2.000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 225-375V 2A GDT T/R 2 Term SG300 Littelfuse 1: 8,28 kr. 42In Stock 20.000On Order	Mfr. Part No. SG300 Mouser Part No 576-SG300	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 225-375V 2A GDT T/R 2 Term Learn More about Littelfuse sg series sgdt	Datasheet	42In Stock 20.000On Order On Order Ship Dates Mfr. No: SG300 Stock: 42 Can Dispatch Immediately On Order: 10.000 Expected 01/03/2027 6.000 Expected 03/03/2027 4.000 Expected 04/03/2027 Factory Lead Time: 17 Weeks	Cut Tape 8,28 kr. 7,61 kr. 6,30 kr. 5,80 kr. View Reel 4,60 kr. 5,22 kr. 4,92 kr. 4,60 kr. MouseReel Available	Min.: 1 Mult.: 1 : 2.000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 450-750V 2A GDT T/R 2 Term SG600Q Littelfuse 1: 8,28 kr. 1.244In Stock 2.000Expected 09/02/2027	Mfr. Part No. SG600Q Mouser Part No 576-SG600Q	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 450-750V 2A GDT T/R 2 Term	Datasheet	1.244In Stock 2.000Expected 09/02/2027	Cut Tape 8,28 kr. 7,61 kr. 6,30 kr. 6,12 kr. Reel 6,12 kr. MouseReel Available	Min.: 1 Mult.: 1 : 2.000
ESD Protection Diodes / TVS Diodes 5V 1uA 8kV BIDIRECTIONAL SP3021-01ETG Littelfuse 1: 3,60 kr. 12.035In Stock 10.000Expected 12/01/2027	Mfr. Part No. SP3021-01ETG Mouser Part No 576-SP3021-01ETG	Littelfuse	ESD Protection Diodes / TVS Diodes 5V 1uA 8kV BIDIRECTIONAL Learn More about Littelfuse sp3021 tvs diode array	Datasheet	12.035In Stock 10.000Expected 12/01/2027	Cut Tape 3,60 kr. 1,59 kr. 1,40 kr. 1,04 kr. Reel 0,761 kr. MouseReel Available	Min.: 1 Mult.: 1 : 10.000
ESD Protection Diodes / TVS Diodes 5V 1uA 10kV UNIDIRECTIONAL SP3031-01ETG Littelfuse 1: 2,05 kr. 2.058In Stock 140.000On Order	Mfr. Part No. SP3031-01ETG Mouser Part No 576-SP3031-01ETG	Littelfuse	ESD Protection Diodes / TVS Diodes 5V 1uA 10kV UNIDIRECTIONAL	Datasheet	2.058In Stock 140.000On Order On Order Ship Dates Mfr. No: SP3031-01ETG Stock: 2.058 Can Dispatch Immediately On Order: 60.000 Expected 05/11/2026 80.000 Expected 07/12/2026 Factory Lead Time: 19 Weeks	Cut Tape 2,05 kr. 0,91 kr. 0,798 kr. 0,716 kr. Reel 0,716 kr. MouseReel Available	Min.: 1 Mult.: 1 : 10.000
ESD Protection Diodes / TVS Diodes 1 Ch 22kV 8.2V .3pF UNI 0201 DFN SP3530-01UTG Littelfuse 1: 1,99 kr. 13.730In Stock	Mfr. Part No. SP3530-01UTG Mouser Part No 576-SP3530-01UTG	Littelfuse	ESD Protection Diodes / TVS Diodes 1 Ch 22kV 8.2V .3pF UNI 0201 DFN Learn More about Littelfuse sp3530	Datasheet	13.730In Stock	Cut Tape 1,99 kr. 0,888 kr. 0,768 kr. 0,574 kr. View Reel 0,388 kr. 0,545 kr. 0,53 kr. 0,50 kr. 0,388 kr. 0,388 kr. MouseReel Available	Min.: 1 Mult.: 1 : 15.000
ESD Protection Diodes / TVS Diodes 2.5pF 30A BI for Surge Protection SP4020-01FTG-C Littelfuse 1: 8,06 kr. 589In Stock 81.000On Order	Mfr. Part No. SP4020-01FTG-C Mouser Part No 576-SP4020-01FTG-C	Littelfuse	ESD Protection Diodes / TVS Diodes 2.5pF 30A BI for Surge Protection Learn More about Littelfuse lightning tvs spa diodes	Datasheet	589In Stock 81.000On Order On Order Ship Dates Mfr. No: SP4020-01FTG-C Stock: 589 Can Dispatch Immediately On Order: 30.000 Expected 07/12/2026 51.000 Expected 10/05/2027 Factory Lead Time: 29 Weeks	Cut Tape 8,06 kr. 4,19 kr. 2,95 kr. 2,28 kr. Reel 1,81 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 1.3pF 12A UNIDIRECTIONAL SP4023-01FTG Littelfuse 1: 5,52 kr. 2.127In Stock 3.000Expected 14/06/2027	Mfr. Part No. SP4023-01FTG Mouser Part No 576-SP4023-01FTG	Littelfuse	ESD Protection Diodes / TVS Diodes 1.3pF 12A UNIDIRECTIONAL Learn More about Littelfuse sp402x arrays	Datasheet	2.127In Stock 3.000Expected 14/06/2027	Cut Tape 5,52 kr. 2,88 kr. 2,20 kr. 1,68 kr. Reel 1,23 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000
Surface Mount Fuses TELECOM NANO2 250V 16mm TAPE 1.25A 04611.25ER16 Littelfuse Lead-Time 33 Weeks	Mfr. Part No. 04611.25ER16 Mouser Part No 576-04611.25ER16	Littelfuse	Surface Mount Fuses TELECOM NANO2 250V 16mm TAPE 1.25A Learn More about Littelfuse 461 telelink fuses	Datasheet	Lead-Time 33 Weeks		Request a Quote
ESD Protection Diodes / TVS Diodes 4CH 20A 3.3V 3.5pF Lightning Protection SP3304NUTG Littelfuse 1: 16,19 kr. 21.000On Order	Mfr. Part No. SP3304NUTG Mouser Part No 576-SP3304NUTG	Littelfuse	ESD Protection Diodes / TVS Diodes 4CH 20A 3.3V 3.5pF Lightning Protection Learn More about Littelfuse lightning tvs spa diodes	Datasheet	21.000On Order On Order Ship Dates Mfr. No: SP3304NUTG Stock: 0 On Order: 12.000 Expected 28/12/2026 9.000 Expected 03/04/2028 Factory Lead Time: 54 Weeks	Cut Tape 16,19 kr. 9,47 kr. 6,86 kr. 5,92 kr. View Reel 4,75 kr. 4,76 kr. 4,75 kr. 4,75 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 2.5pF 30A for Surge Protection SP4020-01FTG Littelfuse 1: 6,74 kr. 274.782On Order	Mfr. Part No. SP4020-01FTG Mouser Part No 576-SP4020-01FTG	Littelfuse	ESD Protection Diodes / TVS Diodes 2.5pF 30A for Surge Protection Learn More about Littelfuse lightning tvs spa diodes	Datasheet	274.782On Order On Order Ship Dates Mfr. No: SP4020-01FTG Stock: 0 On Order: 16.782 Expected 07/12/2026 81.000 Expected 04/02/2027 84.000 Expected 22/03/2027 93.000 Expected 12/04/2027 Factory Lead Time: 29 Weeks	Cut Tape 6,74 kr. 3,90 kr. 2,78 kr. 2,24 kr. 2,11 kr. Reel 1,64 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 2.5pF 25A for Surge Protection SP4021-01FTG Littelfuse 1: 6,67 kr. 99.930On Order	Mfr. Part No. SP4021-01FTG Mouser Part No 576-SP4021-01FTG	Littelfuse	ESD Protection Diodes / TVS Diodes 2.5pF 25A for Surge Protection Learn More about Littelfuse lightning tvs spa diodes	Datasheet	99.930On Order On Order Ship Dates Mfr. No: SP4021-01FTG Stock: 0 On Order: 24.930 Expected 18/01/2027 75.000 Expected 01/03/2027 Factory Lead Time: 29 Weeks	Cut Tape 6,67 kr. 3,71 kr. 2,61 kr. 2,13 kr. 1,95 kr. Reel 1,55 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 2.5pF 25A BI for Surge Protection SP4021-01FTG-C Littelfuse 1: 6,93 kr. 269.720On Order	Mfr. Part No. SP4021-01FTG-C Mouser Part No 576-SP4021-01FTG-C	Littelfuse	ESD Protection Diodes / TVS Diodes 2.5pF 25A BI for Surge Protection Learn More about Littelfuse lightning tvs spa diodes	Datasheet	269.720On Order On Order Ship Dates Mfr. No: SP4021-01FTG-C Stock: 0 On Order: 86.720 Expected 18/01/2027 183.000 Expected 14/06/2027 Factory Lead Time: 29 Weeks	Cut Tape 6,93 kr. 3,35 kr. 2,80 kr. 2,16 kr. 2,11 kr. Reel 1,64 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 105-195V 2A GDT T/R 2 Term SG150 Littelfuse 1: 8,73 kr. 2.977On Order	Mfr. Part No. SG150 Mouser Part No 576-SG150	Littelfuse	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 105-195V 2A GDT T/R 2 Term Learn More about Littelfuse sg series sgdt	Datasheet	2.977On Order On Order Ship Dates Mfr. No: SG150 Stock: 0 On Order: 977 Expected 29/10/2026 2.000 Expected 05/11/2026 Factory Lead Time: 17 Weeks	Cut Tape 8,73 kr. 8,06 kr. 6,67 kr. 6,16 kr. 5,89 kr. Reel 5,89 kr. MouseReel Available	Min.: 1 Mult.: 1 : 2.000

Ethernet ESD, Lightning, & Power Fault Protection

Types of Circuit Protection

Customer Service Office

Company

Resources

Support