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8
GAS DISCHARGE
TUBES
Gas Discharge Tubes
GreentubeTM SL1024A Series Gas Plasma Arresters
Omega Rage
ORDERING INFORMATION
3 ELECTRODE GDT
a=TIP
b=RING
e=GROUND
(centre electrode)
GRAPHICAL SYMBOL
a
b
e
1024 A
SL
Voltage
Pin Configuration
Failsafe Optio
F=Plastic
S=Solder
n
C=Core
R=Leaded
8.0+
_0.2
9.5 MAX
1.0+
_0.2
The SL1024A series offers high levels of current handling on fast
rising transients created by induced Lightning disturbances.
These devices are extremely robust and are able to divert pulses
of 10,000A. The SL1024A also features ultra low capacitance
(typically 1pf or less) making them ideal for the protection of
high-speed transmission equipment.
FEATURES
RoHS
compliant except
`RS' suffix
Low insertion loss
Excellent response to fast rising transients.
Ultra low capacitance.
10KA surge capability tested with 8/20s pulse as defined by
IEC 61000-4-5
Available with thermal failsafe option (add `F' or `S' suffix to
part number)
Applications:
Broadband equipment.
ADSL equipment.
XDSL equipment.
Satellite and CATV equipment.
Splitters
General telecom equipment.
Mechanical Specifications:
Weight:
2.7g (0.095 oz.)
Materials:
Electrode Base: Nickel Iron Alloy
Electrode Plating: Bright Sn
Body: Ceramic
Device Marking:
Littelfuse `LF' marking, Voltage and date
code. Red.
Pb
RoHS
SL1024A xxxC
SL1024A xxxR
SL1024A xxxRF
SL1024A xxxRS
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Gas Discharge Tubes
GreentubeTM SL1024A Series Gas Plasma Arresters
Omega Range
DC
Voltage(V)
90
145
150
230
250
260
300
350
400
420
450
500
600
DC
Breakover
Voltage
Min-Max
7
@
100V/sec
(V)
70-120
116-174
120-180
184-276
200-300
210-310
240-360
280-420
320-480
345-500
360-540
400-500
480-720
Max
Dynamic
Breakover
Voltage @
100/s
(V)
600
500
500
350
400
420
450
500
600
650
650
700
850
Alternating
Discharge
Current
1,3
(A)
10
10
10
10
10
10
10
10
10
10
10
10
10
Max Single
Impulse
Discharge
Current
10/350s
5,2
(kA)
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
Max
Single
Impulse
Discharge
Current
(kA)
20
20
20
20
20
20
20
20
20
20
20
20
20
Max
Repetitive
Impulse
Discharge
Current
(kA)
10
10
10
10
10
10
10
10
10
10
10
10
10
(1) Total current through center (ground) electrode, both line electrodes pulsed simultaneously; half value through
each respective line terminal.
(2) Applies to `C' option devices mounted in a suitable connector with high pressure contacts.
(3) 10 shots, A.C. 60Hz, 1 sec duration.
(4) 10 shots, 8/20S waveform
(5) either end (line) electrode to center (ground) electrode
(6) Meets the requirements of BT Type 14A. Addition of `F' (failsafe) option meets the requirements of BT type
number 14A/1.
LITTELFUSE 3 TERMINAL ARRESTER SERIES
TOTALLY NON-RADIOACTIVE, UL RECOGNIZED
Part Number
SL1024A090
SL1024A145
SL1024A150
SL1024A230
SL1024A250
SL1024A260
SL1024A300
SL1024A350
SL1024A400
SL1024A420
SL1024A450
SL1024A500
SL1024A600
V
o
ltage
(V)
Time (ns)
0 200 400 600 800 1000
1200
Max dynamic breakover
voltage
Hold-over voltage
On-State voltage
Voltage vs Time Characteristic
50
45
40
35
30
25
20
15
10
5
0
0 1 2 3 4 5 6
Current
(A)
Time
(s)
1 line to ground
both lines to ground
Time vs. Current for Failsafe
Pb
RoHS
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8
GAS DISCHARGE
TUBES
Gas Discharge Tubes
Omega Range
GreentubeTM SL1024A Series Gas Plasma Arresters
0
0
2 5
5 0
7 5
100
125
150
175
200
225
250
50
100
150
200
250
300
350
400
450
500
Time in seconds
Temperature C
Profile for reflow soldering
Solder
T
1
max = 266
o
C
Flow Area
T
1
= 239
o
C
200
300
Tm = 179
o
C
Forced Cooling
Preheating
Area
100
10
20
30
40
Time (seconds)
Temperature (
C)
Profile for wave soldering
Notes:
T
1
max
= Maximum Tab Temperature = 266
o
C
T
1
= Flow Tempearture of Solder = 239
o
C
Tm
= Melting Point of Solder = 179
o
C
Tamb
= 25
o
C
1. Maximum permissible rate of temperature change = 7
o
C / sec
2. Not for RF style devices
Pb
RoHS
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