Tested in accordance with ITU-T Rec K.12
Notes:
1. Total current through centre electrode
2. Maximum Peak Break Over Voltage
©2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com for current information.
Customer should verify actual device performance in their specific applications.
Agency Approvals
2 Electrode GDT Graphical Symbol
Electrical Characteristics
Part Number
AGENCY
a
®
SL1122A Series Hybrid
e
MIN
DC Breakdown
in Volts
(@100V/s)
TYP
1, 2
b
MAX
AGENCY FILE NUMBER
(1kV/μs Ignition Time)
Device Specifications (at 25°C)
E128662
DC Voltage
(centre electrode)
2
Gas Discharge Tube (GDT) Products
SL1122A Series
Resistance
Insulation
MIN
Revised: November 10, 2009
(@1MHz, 0V bias,
Capacitance
1V oscillation)
45
MAX
• RoHs Compliant
• Excellent response to
• Flat response up to
• MDF protection
• ADSL equipment
• XDSL equipment
Description
The SL1122A series Hybrid features a high
performance Alpha Gas Plasma Tube in conjunction
with a MOV. These devices are matched so that high
speed pulses are initially clamped by the MOV, then
as the current rises, the transient energy is switched
through the gas tube. The Hybrid offers high levels of
performance on fast rising transients in the domain
of 100V/μs to 10 kV/μs, so eliminates the dv/dt
switching delay normally exhibited by standard GDTs.
These devices are extremely robust and are able to
divert a 10,000 Amp pulse without destruction.
Features
Applications
fast rising transients
10kV/μs
(on state voltage)
Arc Voltage
@1Amp Min
TYP
Surge Life
(10/1000μs
300x +/-)
1
Surge Current
(8/20μs x 10)
• 10kA surge capability
• Thermal failsafe
• Alarm panels
• General telecom
tested with 8/20μs
pulse as defined by IEC
61000-4-5
equipment
Life Ratings
1
AC Discharge
(10x1s@50Hz)
Nominal
Current
1
SL1122A Series
DC Holdover
(<150msecs.)
Voltage
TYP
®