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: 308
Select Image Part # Mfr. Description Datasheet Availability Pricing (PEN) Filter the results in the table by unit price based on your quantity. Qty. RoHS
Littelfuse ESD Protection Diodes / TVS Diodes 1.3pF 7A UNIDIRECTIONAL 393,928In Stock
Min.: 1
Mult.: 1
: 3,000

Littelfuse ESD Protection Diodes / TVS Diodes 1.5kW 150V Hi Rel 5% Bi-Directional 319In Stock
Min.: 1
Mult.: 1
: 500
Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 315-525V 2A GDT T/R 2 Term 2,525In Stock
Min.: 1
Mult.: 1
: 2,000

Littelfuse ESD Protection Diodes / TVS Diodes 4 Ch 8kV 0.65pF SPA 4,997In Stock
Min.: 1
Mult.: 1
: 4,000

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors STANDARD 90V NOM 3,361In Stock
Min.: 1
Mult.: 1
: 1,000

Littelfuse ESD Protection Diodes / TVS Diodes .3pF 10KV 18V SOD8820 65,241In Stock
Min.: 1
Mult.: 1
: 10,000

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STANDARD 600V NOMINAL 1,221In Stock
Min.: 1
Mult.: 1
: 1,000

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 263-437V 2A GDT T/R 2 Term 1,995In Stock
Min.: 1
Mult.: 1
: 2,000

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 90V SMD Ultra Low 0.3pF 888In Stock
2,000Expected 10/29/2026
Min.: 1
Mult.: 1
: 2,000

Littelfuse ESD Protection Diodes / TVS Diodes 4 channels .65pF 8kV 83,980In Stock
Min.: 1
Mult.: 1
: 3,000

Littelfuse ESD Protection Diodes / TVS Diodes 2 channels .65pF 79,148In Stock
Min.: 1
Mult.: 1
: 3,000

Littelfuse Surface Mount Fuses 600VAC 2A .045ohms 461 NANO2 25,008In Stock
Min.: 1
Mult.: 1
: 2,500

Littelfuse Surface Mount Fuses 600VAC 1.25A .104ohms 461 NANO2 56,230In Stock
12,500Expected 9/16/2026
Min.: 1
Mult.: 1
: 2,500

Littelfuse ESD Protection Diodes / TVS Diodes 3.3V 1uA 30kV ESD Contact 48,340In Stock
Min.: 1
Mult.: 1
: 2,500

Littelfuse ESD Protection Diodes / TVS Diodes 4 Ch 8kV 6V .45pF 106,162In Stock
56,700On Order
Min.: 1
Mult.: 1
: 3,000

Littelfuse ESD Protection Diodes / TVS Diodes 6 Ch 8kV 6V 0.4 pF 55,664In Stock
Min.: 1
Mult.: 1
: 3,000

Littelfuse ESD Protection Diodes / TVS Diodes 1.3pF 15A BIDIRECTIONAL 135,625In Stock
Min.: 1
Mult.: 1
: 3,000

Littelfuse ESD Protection Diodes / TVS Diodes 2 Ch 8kV 0.65pF SPA 26,724In Stock
Min.: 1
Mult.: 1
: 3,000

Littelfuse ESD Protection Diodes / TVS Diodes 4 Ch 8kV 0.65pF SPA 11,578In Stock
12,000Expected 9/22/2026
Min.: 1
Mult.: 1
: 3,000

Littelfuse ESD Protection Diodes / TVS Diodes 4 channels .65pF 9,380In Stock
Min.: 1
Mult.: 1
: 3,000

Littelfuse ESD Protection Diodes / TVS Diodes 2 CH 8KV 0.5pF 3,600In Stock
Min.: 1
Mult.: 1
: 3,000

Littelfuse ESD Protection Diodes / TVS Diodes .3pF 10KV 28V 0201 Flipchip 31,470In Stock
Min.: 1
Mult.: 1
: 10,000

Littelfuse Surface Mount Fuses 600VAC 0.5A .56ohms 461 NANO2 3,614In Stock
5,000Expected 11/3/2026
Min.: 1
Mult.: 1
: 2,500

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 90V NOMINAL GP S.A. STANDARD 1,013In Stock
Min.: 1
Mult.: 1
: 1,000

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 230V SMD Ultra Low 0.3pF 1,297In Stock
Min.: 1
Mult.: 1
: 2,000