Littelfuse SP3051 Series - Manual

© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/25/13
TVS Diode Arrays
(SPA ® Diodes)
SP3051
Lightning Surge Protection - SP3051 Series
Description
Applications
The SP3051 integrates low capacitance rail-to-rail diodes
with an additional zener diode to protect each I/O pin
against ESD and high surge events. This robust device can
safely absorb 20A of current per IEC61000-4-5 (t
P
=8/20µs)
without performance degradation and a minimum ±30kV
ESD per IEC61000-4-2. Their very low loading capacitance
also makes them ideal for protecting high speed signal pins.
Features
• ESD, IEC61000-4-2,
±30kV contact, ±30kV air
• EFT, IEC61000-4-4, 40A
(5/50ns)
• Lightning, IEC61000-4-5,
20A (8/20μs)
• Low capacitance of 3.8pF
(TYP) per I/O
• Low leakage current of
0.5μA (MAX) at 5V
• Small SOT23-6 (JEDEC
MO-178AB) packaging
• LCD/PDP TVs
• Monitors
• Notebooks
• 10/100/1000 Ethernet • Firewire
• Set Top Boxes
• Flat Panel Displays
• Portable Medical
Pinout
I/O 1
GND
I/O 2
I/O 4
V
CC
I/O 3
Functional Block Diagram
1 2 3
6 5 4
Life Support Note:
Not Intended for Use in Life Support or Life Saving Applications
The products shown herein are not designed for use in life sustaining or life saving
applications unless otherwise expressly indicated.
RoHS Pb GREEN
Application Examples
V
BUS
V
BUS
V
BUS
V
BUS
D +
D +
D -
D -
GND
GND
C
T
R
T
R
T
R
T
R
T
C
T
C
T C
T
USB
Port
USB
Port
USB
Controller
V BUS
SP3051-04HTG
USB Dual Port Protection
VCC
10/100
Ethernet
PHY
TX +
TX -
RX +
RX -
VCC
GND
SP3051-04HTG
TX +
TX -
RX +
RX -
Unused
Unused
Unused
RJ45
Unused
To Twisted-Pair Networ
k
75 75 75 75
1
2
3
6
5
4
10/100 Ethernet Differential Protection
VCC
10/100/1000
Ethernet
PHY
TX +
TX -
RX +
RX -
VCC
GND
TX +
TX -
RX +
RX -
Unused
Unused
Unused
RJ45
Unused
To Twisted-Pair Networ
k
75 75 75 75
10/100/1000 Ethernet Protection
SP3051-04HTG
1
2
3
6
5
4
SP3051 Series 6V 20A Diode Array