Instruction Manual

Gas Discharge Tube (GDT) Products
© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/25/13
SG Series
Description
Littelfuse SG series GDT offers high surge ratings
in a miniature package. It’s designed for surface
mounting on PCB with small size 4.5x3.2x2.7mm.
Low insertion loss is perfectly suited to broadband
equipment applications. The capacitance does not vary
with voltage, and will not cause operational problems
with ADSL2+, where capacitance variation across Tip
and Ring is undesirable. These devices are extremely
robust and are able to divert a 1000A pulse without
destruction.
Features
•RoHScompliantand
Lead-free
•GHzworkingfrequency
•Excellentstabilityon
multiple pulse duty cycle
•Excellentresponseto
fast rising transients.
•UltraLowInsertionLoss
•1-2KAsurgecapability
tested with 8/20μS
pulseasdenedbyIEC
61000-4-5
•Ultrasmalldevices
offered in a variety of
mounting lead forms
•Non-Radioactive
•Lowcapacitance(<1pF)
•VoltageRanges75Vto
600V
•ULrecognized
•ConformstoITU-TK12,
IEC1000-4-5
•SquareOutline
Applications
SG Series
2 Electrode GDT Graphical Symbol
Agency Approvals
AGENCY AGENCY FILE NUMBER
E128662
• Communication
equipment
•CATVequipment
•Testequipment
•Datalines
•Powersupplies
•TelecomSLIC
protection
•Broadbandequipment
•ADSLequipment,
including ADSL2+
•XDSLequipment
•SatelliteandCATV
equipment
•Generaltelecom
equipment