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. 

Results: 326
Select Image Part #
 Mfr.
Description Datasheet Availability Pricing (GBP) Filter the results in the table by unit price based on your quantity.
Qty. RoHS
Littelfuse Surface Mount Fuses TELECOM NANO2 250V 16mm TAPE 1.25A
Datasheet
1,015In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

Littelfuse ESD Protection Diodes / TVS Diodes ESD 6V UNI
Datasheet
60,897Expected 08/04/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

Littelfuse ESD Protection Diodes / TVS Diodes 3.3V Diode Array
Datasheet
6,000On Order
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN 90V
Datasheet
899Expected 03/04/2026
Min.: 1
Mult.: 1
Reel: 900

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 263-437V 2A GDT T/R 2 Term
Datasheet
2,000Expected 21/05/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,000

Littelfuse Fuse Kits & Assortments Emergency Diagnostic MINI
Datasheet
455Factory Stock Available
More Info Available
Min.: 1
Mult.: 1
No
Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors S.A.STANDARD.90V WITH FAILSAFE
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 350
Mult.: 350
Reel: 350

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors S.A.FORMED.90V WITH FAILSAFE
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 500
Mult.: 500
Reel: 500

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 350V Standard GP Nominal
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 900
Mult.: 900
Reel: 900

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP BIPOLAR SURGE ARRESTOR MS
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 900
Mult.: 900
Reel: 900

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors S.A. STAN .470V W/ FAILSAFE
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 500
Mult.: 500

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors S.A.STANDARD LEADED.470V NOMINAL SMT
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 900
Mult.: 900
Reel: 900

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STANDARD 600V NOMINAL SMT
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 900
Mult.: 900
Reel: 900

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 145V SMD Ultra Low 0.3pF
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 250V SMD Ultra Low 0.3pF
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 300V SMD Ultra Low 0.3pF
Datasheet
Non-Stocked Lead-Time 12 Weeks
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,000

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 350V SMD Ultra Low 0.3pF
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 400V SMD Ultra Low 0.3pF
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 470V SMD Ultra Low 0.3pF
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 600V SMD Ultra Low 0.3pF
Datasheet
Non-Stocked Lead-Time 12 Weeks
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,000

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 210-390V GDT T/R 2 Term
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 315-525V GDT T/R 2 Term
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 370-550V 1A GDT T/R 2 Term
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 500V
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 600V
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000