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 (USD) 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 403,818In Stock
Min.: 1
Mult.: 1
: 3,000

Littelfuse ESD Protection Diodes / TVS Diodes .3pF 10KV 28V 0201 Flipchip 36,804In Stock
Min.: 1
Mult.: 1
: 10,000

Littelfuse ESD Protection Diodes / TVS Diodes 1.5kW 150V Hi Rel 5% Bi-Directional 319In Stock
Min.: 1
Mult.: 1
: 500
Littelfuse ESD Protection Diodes / TVS Diodes 4 Ch 8kV 0.65pF SPA 5,100In Stock
Min.: 1
Mult.: 1
: 4,000

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 315-525V 2A GDT T/R 2 Term 2,545In Stock
Min.: 1
Mult.: 1
: 2,000

Littelfuse ESD Protection Diodes / TVS Diodes .3pF 10KV 28V SOD8820 17,007In Stock
Min.: 1
Mult.: 1
: 10,000

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors STANDARD 90V NOM 3,469In Stock
Min.: 1
Mult.: 1
: 1,000

Littelfuse ESD Protection Diodes / TVS Diodes .3pF 10KV 18V 0201 Flipchip 10,672In Stock
Min.: 1
Mult.: 1
: 10,000

Littelfuse ESD Protection Diodes / TVS Diodes 3.3V Diode Array 83In Stock
12,000On Order
Min.: 1
Mult.: 1
: 3,000

Littelfuse ESD Protection Diodes / TVS Diodes 1 Ch 22kV 8.2V .3pF UNI 0201 DFN 13,760In Stock
Min.: 1
Mult.: 1
: 15,000

Littelfuse ESD Protection Diodes / TVS Diodes 2 Ch 8KV 5V .65pF Low Cap 2,980In Stock
8,900Expected 14/07/2026
Min.: 1
Mult.: 1
: 3,000

Littelfuse ESD Protection Diodes / TVS Diodes 4 channels .65pF 8kV 79,058In Stock
Min.: 1
Mult.: 1
: 3,000

Littelfuse Surface Mount Fuses 600VAC 2A .045ohms 461 NANO2 27,578In Stock
Min.: 1
Mult.: 1
: 2,500

Littelfuse Surface Mount Fuses 600VAC 1.25A .104ohms 461 NANO2 22,057In Stock
17,500Expected 15/07/2026
Min.: 1
Mult.: 1
: 2,500

Littelfuse ESD Protection Diodes / TVS Diodes 2 Ch 8kV 0.65pF SPA 20,464In Stock
Min.: 1
Mult.: 1
: 3,000

Littelfuse ESD Protection Diodes / TVS Diodes 2 channels .65pF 20,580In Stock
30,000On Order
Min.: 1
Mult.: 1
: 3,000

Littelfuse ESD Protection Diodes / TVS Diodes 4 Ch 8kV 0.65pF SPA 12,218In Stock
Min.: 1
Mult.: 1
: 3,000

Littelfuse ESD Protection Diodes / TVS Diodes 4 channels .65pF 4,926In Stock
Min.: 1
Mult.: 1
: 3,000

Littelfuse Surface Mount Fuses 600VAC 0.5A .56ohms 461 NANO2 9,187In Stock
Min.: 1
Mult.: 1
: 2,500

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors STANDARD 350V NOM 1,309In Stock
Min.: 1
Mult.: 1
: 1,000

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STANDARD 600V NOMINAL 1,223In Stock
Min.: 1
Mult.: 1
: 1,000

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 90V NOMINAL GP S.A. STANDARD 1,113In Stock
Min.: 1
Mult.: 1
: 1,000

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 230V SMD Ultra Low 0.3pF 2,065In Stock
Min.: 1
Mult.: 1
: 2,000

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 75V SMD Ultra Low 0.3pF 2,003In Stock
2,000Expected 30/07/2026
Min.: 1
Mult.: 1
: 2,000

Littelfuse ESD Protection Diodes / TVS Diodes 3.3V 1uA 30kV ESD Contact 8,493In Stock
47,500On Order
Min.: 1
Mult.: 1
: 2,500