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 (TWD) Filter the results in the table by unit price based on your quantity. Qty. RoHS
Littelfuse ESD Protection Diodes / TVS Diodes .3pF 10KV 18V 0201 Flipchip 8,091In Stock
Min.: 1
Mult.: 1
: 10,000

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP BIPOLAR SURGE ARRESTOR MS 353In Stock
Min.: 1
Mult.: 1
: 900

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors STANDARD 350V NOM 808In Stock
Min.: 1
Mult.: 1
: 1,000

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN 90V 778In Stock
Min.: 1
Mult.: 1
: 900

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors STANDARD 90V MS 266In Stock
900Expected 12/24/2026
Min.: 1
Mult.: 1
: 900

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 300-500V 2A GDT T/R 2 Term 16In Stock
4,000Expected 9/22/2026
Min.: 1
Mult.: 1
: 2,000

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 400-600V 2A GDT T/R 2 Term 1,830In Stock
2,000Expected 9/22/2026
Min.: 1
Mult.: 1
: 2,000

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 450-750V 2A GDT T/R 2 Term 1,294In Stock
Min.: 1
Mult.: 1
: 2,000

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 52-98V 2A GDT T/R 2 Term 1,620In Stock
30,000On Order
Min.: 1
Mult.: 1
: 2,000

Littelfuse ESD Protection Diodes / TVS Diodes 8 Ch 8kV 0.65pF SPA 2,484In Stock
51,953On Order
Min.: 1
Mult.: 1
: 4,000

Littelfuse ESD Protection Diodes / TVS Diodes 4 Ch, 12kV, 0.85pF SOT5630 4,796In Stock
6,000Expected 9/22/2026
Min.: 1
Mult.: 1
: 3,000

Littelfuse ESD Protection Diodes / TVS Diodes 5V 1uA 8kV BIDIRECTIONAL 12,050In Stock
10,000Expected 1/12/2027
Min.: 1
Mult.: 1
: 10,000

Littelfuse ESD Protection Diodes / TVS Diodes 4CH 20A 3.3V 3.5pF Lightning Protection 44In Stock
21,000On Order
Min.: 1
Mult.: 1
: 3,000

Littelfuse ESD Protection Diodes / TVS Diodes 1 Ch 22kV 8.2V .3pF UNI 0201 DFN 13,730In Stock
Min.: 1
Mult.: 1
: 15,000

Littelfuse ESD Protection Diodes / TVS Diodes 1.3pF 12A UNIDIRECTIONAL 3,471In Stock
3,000Expected 4/28/2027
Min.: 1
Mult.: 1
: 3,000

Littelfuse ESD Protection Diodes / TVS Diodes 1.3pF 12A BIDIRECTIONAL 762In Stock
63,000On Order
Min.: 1
Mult.: 1
: 3,000

Littelfuse ESD Protection Diodes / TVS Diodes ESD 6V UNI 422In Stock
123,000On Order
Min.: 1
Mult.: 1
: 3,000

Littelfuse Surface Mount Fuses TELECOM NANO2 250V 16mm TAPE 1.25A 916In Stock
Min.: 1
Mult.: 1
: 2,500

Littelfuse ESD Protection Diodes / TVS Diodes 5V 1uA 10kV UNIDIRECTIONAL
149,595On Order
Min.: 1
Mult.: 1
: 10,000

Littelfuse ESD Protection Diodes / TVS Diodes 2.5pF 30A for Surge Protection
214,481On Order
Min.: 1
Mult.: 1
: 3,000

Littelfuse ESD Protection Diodes / TVS Diodes 2.5pF 30A BI for Surge Protection
68,532On Order
Min.: 1
Mult.: 1
: 3,000

Littelfuse ESD Protection Diodes / TVS Diodes 2.5pF 25A for Surge Protection
100,320On Order
Min.: 1
Mult.: 1
: 3,000

Littelfuse ESD Protection Diodes / TVS Diodes 2.5pF 25A BI for Surge Protection
89,670On Order
Min.: 1
Mult.: 1
: 3,000

Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 105-195V 2A GDT T/R 2 Term
3,982Expected 11/24/2026
Min.: 1
Mult.: 1
: 2,000

Littelfuse ESD Protection Diodes / TVS Diodes 4CH 20A 2.5V 3.5pF Lightning Protection
5,000Expected 12/2/2026
Min.: 1
Mult.: 1
: 3,000