Littelfuse SR70 Series User Manual
Tvs diode arrays, Lightning surge protection- sr70 series
© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 04/24/13
TVS Diode Arrays
(SPA
®
Diodes)
Lightning Surge Protection- SR70 Series
Description
Features
Applications
The SR70 consists of four, low capacitance, rail-to-rail
diodes that provide protection against ESD and lightning
surge events. These robust diodes can safely absorb up to
40A (t
P
=8/20μs) and repetitive ESD strikes at the maximum
level (Level 4) specified in the IEC 61000-4-2 international
standard without performance degradation.
Its low loading capacitance makes it ideal for protecting
high-speed data lines such as VDSL and VDSL2.
• ESD, IEC61000-4-2 ,
±30kV contact discharge,
±30kV air discharge
• EFT, IEC61000-4-4, 80A
(t
p
=5/50ns)
• Lightning protection,
IEC61000-4-5, 40A
(t
p
=8/20µs)
• Low capacitance of 2.0pF
(TYP) per I/O
• Low clamp voltage
• Small SOT143 (JEDEC TO-
253) packaging
• xDSL Lines
• Video Lines
• Customer Premises
Equipment
• 10/100/1000 Ethernet
Pinout
Functional Block Diagram
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 Example
SR70 Series 70V 40A Diode Array
SOT-143-4
GND
I/O 1
Vcc
I/O 2
V
CC
I/O
I/O
1
2
3
4
Additional Information