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Littelfuse

SL1122A Datasheet Preview

SL1122A Datasheet

Gas Discharge Tubes

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Gas Discharge Tubes
High Performance Alpha Range
www.DataSheet4U.com
RoHS Greentube™ SL1122A Series Hybrid Gas Plasma Arresters ®
The SL1122 series Hybrid features a high performance Alpha Gas
Plasma Tube in conjunction with a high speed Silicon Avalanche
Diode ( SAD ). These devices are matched so that High speed
pulses are initially clamped by the SAD, 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 GDT’s. These
devices are extremely robust and are able to divert a 10,000Amp
pulse without destruction, so are ideal for central office ( tele-
phone exchange ) protection.
FEATURES
RoHs Compliant
Excellent response to fast rising transients.
Flat response up to 10KV/µS.
10KA surge capability tested with 8/20µS pulse as defined by
IEC 61000-4-5
SAD ensures short circuit failure mode in the event of severe
transient overload.
Thermal failsafe.
Applications:
MDF protection
Alarm panels.
ADSL equipment.
XDSL equipment.
General Telecom Equipment
8
ab
e
3 ELECTRODE GDT
a=TIP
b=RING
e=GROUND
(centre electrode)
GRAPHICAL SYMBOL
ORDERING INFORMATION
SL 1122 A
Voltage
All dimensions in mm
Mechanical Specifications:
Weight:
2.7g (0.095 oz.)
Materials:
Electrode Base: Nickel Iron Alloy
Electrode Plating: Bright Sn
Body: Ceramic
Device Marking: Littelfuse ‘LF’ logo, voltage and date code
www.littelfuse.com
347




Littelfuse

SL1122A Datasheet Preview

SL1122A Datasheet

Gas Discharge Tubes

No Preview Available !

Gas Discharge Tubes
High Performance Alpha Range
www.DataSheet4U.com
RoHS Greentube™ SL1122A Series Hybrid Gas Plasma Arresters ®
LITTELFUSE 3 TERMINAL ARRESTER SERIES
TOTALLY NON-RADIOACTIVE, UL BREAKER VOLTAGE
DC
Part Number Voltage
(V)
SL1122A090
SL1122A200
SL1122A230
SL1122A250
SL1122A260
SL1122A350
SL1122A450
90
200
230
250
260
350
450
Breakover
Voltage1,2,4
(V)
70-120
140-250
184-276
200-300
210-350
280-420
420-600
Max
Max
Max Dynamic
Breakover
Repetitive
Impulse
Repetitive
Impulse
Voltage @ Discharge Discharge
1 kV/us (Vbr) Current4,7 (kA) Current5,7 (kA)
150 5
250 5
350 5
400 5
400 5
600 5
700 5
10
10
10
10
10
10
10
Alternating
Discharge
Current4,6
(A)
Insulation
Resistance8
()
Max
Capacitance9
(pF)
5
1x108 @ 50V
200
5
1x108 @ 120V
100
5
1x108 @ 150V
100
5
1x108 @ 150V
100
5
1x108 @ 175V
100
5
1x108 @ 265V
100
5
1x108 @ 350V
100
Holdover
Voltage3
(V)
50
120
135
135
135
135
135
Nominal
On-State
Voltage @
1A (V)
20
20
20
20
20
20
20
Notes:
(1) Measured using a voltage rate of rise of 100V/s.
(2) In ionized mode
(3) Tested according to ITU-T Rec.K.12
(4) Either end electrode to center electrode
(5) Total current through center electrode, both line electrodes subject to simultaneous pulses
(6) 10 shots, AC 60Hz, 1 sec duration
(7) 10 shots, 8/20µs waveform
(8) Measured @ 100V
(9) Measured at MHz, line to ground
G.D.T. ONLY
CCT DIAGRAM
HYBRID
348 w w w . l i t t e l f u s e . c o m


Part Number SL1122A
Description Gas Discharge Tubes
Maker Littelfuse
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