SP3002-04JTG Datasheet, PDF (1/1 Pages) Littelfuse – Some Ethernet ports only need be protected for ESD and not for lightning induced transients

Silicon Protection Arrays
Application Guide
10/100/1000 Ethernet (ESD only)
Considerations:
● Some Ethernet ports only need be protected for ESD and not for lightning induced transients
→ These are sometimes referred to as “2M” ports or 2 Meter ports
● Parasitic capacitance should be taken into account especially for Gigabit Ethernet
● The 4 data lines below (Tx+/- and Rx+/-) are being protected against ESD by a low capacitance SP3002 which is
suitable for all Ethernet data rates
→ In fact, any low capacitance SP30xx device is suitable for any “ESD only” Ethernet application
Application Schematic:
RJ-45
Connector
Tx+
J1
Tx-
Outside
World
Rx+
Ethernet
PHY
Rx-
J8
Case GND
NC
Case GND
SP3002
Recommended SPA Devices:
Ordering Number
SP3002-04JTG
SP3003-04XTG
SP3004-04XTG
ESD Level
(Contact)
±12kV
±8kV
±12kV
Lightning
(t_P=8/20μs)
4.5A
2.5A
4A
I/O
Capacitance
0.85pF
0.65pF
0.85pF
# of
Channels
4
4
4
V_RWM
6V
6V
6V
Packaging
SC70-6
SOT563
SOT563
©2009 Littelfuse, Inc
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