Littelfuse LC03-3.3 Series - Manual

© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 04/24/13
TVS Diode Arrays
(SPA ® Diodes)
Lightning Surge Protection - LC03-3.3 Series
Description
Features
Applications
This LC03-3.3 series provides overvoltage protection for
applications such as 10/100/1000 BaseT Ethernet, and
T3/E3 interfaces. This new protector combines the TVS
diode element with a diode rectifier bridge to provide both
longitudinal and differential protection in one package.
This design results in a capacitive loading characteristic
that is log-linear with respect to the signal voltage across
the device. This reduces intermodulation (IM) distortion
caused by a typical solid-state protection solution. The
application schematic provides the connection information
and the LC03-3.3 is rated for GR-1089, intra-building
transient immunity requirements for telecommunication
installations.
Pinout
Functional Block Diagram
• Lightning Protection,
IEC61000-4-5, 150A
(t
p
=8/20µs)
• EFT, IEC61000-4-4, 40A
(t
p
=5/50ns)
• Low insertion loss, log-
linear capacitance
• Low clamping voltage
• SOIC-8 surface mount
package (JEDEC MS-012)
• Combined longitudinal
and metallic protection
• Clamping speed of
nanoseconds
• UL 94V-0 epoxy molding
• RoHS compliant
• T1/E1 Line cards
• T3/E3 and DS3 Interfaces
• STS-1 Interfaces • 10/100/1000 BaseT
Ethernet
SOIC-8 (Top View)
1
2
3
5 4
6
7
8
Pin 1 and 8
Pin 4 and 5
Pin 2, 3, 6,
and 7
Line out
Line out Line in
Line in
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.
Application Example
This schematic shows a high-speed data interface
protection solution. The LC03-3.3BTG is compatible with
the intra-building surge requirements of Telcordia’s GR-
1089-CORE, and the Basic Level Recommendations of
ITU K.20 and K.21. The TeleLink fuse provides overcurrent
protection for the long term 50/60 Hz power fault events.
TeleLink (0461 1.25) LC03-3.3BTG
1
2
3
4
8
7
6
5
to chipset
(Ethernet PHY,
T3/E3 PHY, etc.)
RoHS Pb GREEN
LC03-3.3 Series 3.3V 150A Diode Array
Additional Information
Datasheet Samples Resources