TVS Diode Array (SPA® Diodes)
Lightning Surge Protection - SP1050 Series
RoHS
GREEN
Pb
SP1050 Series for Power-over-Ethernet PSE Protection
Description
The SP1050-04BTG provides over-voltage protection for
Power-over-Ethernet PSE equipment in a space saving
SOIC-8 package. It incorporates fourTVS Diodes each with
their own decoupling capacitor to stabilize power supplies.
The SP1050 Series is compatible with the older IEEE 803.
af and IEEE 802.3at PoE requirements for Mode A or Mode
B for both PSE and PD but is not compatible with the new
IEEE 802.3bt ( 4 wire-pair simultaneous powering) PSE/PD
Class 5 through Class 8 or other 4 wire-pair simultaneous
powering schemes that implement independent sources
for each two wire-pair interface.
It will protect two wire-pair interfaces that share a
common grounding from lightning induced surges as
outlined in IEC 61000-4-5 2ND Edition, EFTs (electrically
fast transients) as outlined in IEC 61000-4-5, and 30 kV
ESD air and contact discharges as
Functional Block Diagram
GND
PS1
1
PS2
4
PS3
5
PS4
8
2-3-6-7
outlined in IEC 61000-4-2.
The low clamping voltage of 96V(Max) makes it compatible
with PSE controller technologies
Features
• Peak pulse power: up to
2.7 kW (8/20 μs)
• OperatingTj max: 150 °C
• JEDEC registered package
outline
Absolute Maximum Ratings
• Lightning, 24A (8/20 as
defined in IEC 61000-4-5
2nd edition)
Parameter
Peak Pulse Current (8/20µs)
Peak Pulse Power (8/20µs)
Rating
24
Units
A
• Embeds four decoupling
capacitors
2700
30
W
• ESD protection of 30kV
contact discharge,
30kV air discharge, (IEC
61000-4-2)
• Meets the most stringent
environmental conditions
IEC 61000-4-2, Contact Discharge, (Level 4)
IEC 61000-4-2, Air Discharge, (Level 4)
kV
30
kV
• RoHS compliant and lead-
free
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause
permanent damage to the component. This is a stress only rating and operation of the
component at these or any other conditions above those indicated in the operational
sections of this specification is not implied.
• Stand-off voltage of 58 V
• Moisture Sensitivity
Level(MSL -1)
• Low clamping voltage of
96V (MAX) at 24A
• AEC-Q101 qualified
• Low leakage current of
0.1 μA at 25 °C and 1 μA
at 85 °C
Additional Information
Applications
• PoE (Power over Ethernet)
Datasheet
Resources
Samples
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.
©2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revision: 01/08/19