Gas Discharge Tubes
Omega Rage
RoHS
Pb
Greentube™ SL1024A Series Gas Plasma Arresters
®
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 8/20
µ
s 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.
8
GAS DISCHARGE
SL1024A xxxC
a
b
SL1024A xxxR
ø8.0+0.2
_
3 ELECTRODE GDT
a=TIP
b=RING
e=GROUND
(centre electrode)
GRAPHICAL SYMBOL
ø1.0+0.2
_
SL1024A xxxRF
SL1024A xxxRS
ORDERING INFORMATION
SL 1024 A
Voltage
Pin Configuration
C=Core
R=Leaded
Failsafe Optio n
F=Plastic
S=Solder
Mechanical Specifications:
Weight:
Materials:
2.7g (0.095 oz.)
Electrode Base: Nickel Iron Alloy
Electrode Plating: Bright Sn
Body: Ceramic
Littelfuse ‘LF’ marking, Voltage and date
code. Red.
Device Marking:
9.5 MAX
e
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341
Gas Discharge Tubes
Omega Range
RoHS
Pb
Greentube™ SL1024A Series Gas Plasma Arresters
®
LITTELFUSE 3 TERMINAL ARRESTER SERIES
TOTALLY NON-RADIOACTIVE, UL RECOGNIZED
DC
Breakover
Voltage
Min-Max
7
@
100V/sec
DC
(V)
Voltage(V)
90
145
150
230
250
260
300
350
400
420
450
500
600
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/µs
(V)
600
500
500
350
400
420
450
500
600
650
650
700
850
Max
Max
Repetitive Single
Impulse
Alternating Impulse
Discharge Discharge
Discharge
Current
Current
Current
1,3
(kA)
(kA)
(A)
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
20
20
20
20
20
20
20
20
20
20
20
20
20
Max Single
Impulse
Discharge
Current
10/350µs
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
Part Number
SL1024A090
SL1024A145
SL1024A150
SL1024A230
SL1024A250
SL1024A260
SL1024A300
SL1024A350
SL1024A400
SL1024A420
SL1024A450
SL1024A500
SL1024A600
(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, 8/20
µ
S 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.
Voltage vs Time Characteristic
50
Max dynamic breakover
voltage
Time vs. Current for Failsafe
45
40
35
30
Voltage
(V)
Time
(s)
Hold-over voltage
On-State voltage
25
20
15
10
5
0
0
1
1 line to ground
both lines to ground
2
3
Current
(A)
4
5
6
0
200
400
600
Time (ns)
800
1000
1200
342
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Gas Discharge Tubes
Omega Range
RoHS
Pb
Greentube™ SL1024A Series Gas Plasma Arresters
Profile for reflow soldering
Profile for wave soldering
300
®
250
225
200
Temperature ˚C
175
150
125
100
75
50
25
0
0
50
100
150
200
250
300
350
400
450
500
Time in seconds
Temperature (˚C)
Solder
Flow Area
o
T
1
max = 266C
o
T
1
= 239 C
200
Tm = 179
o
C
Forced Cooling
Preheating
Area
100
8
GAS DISCHARGE
10
20
Time(seconds)
30
40
Notes:
T
1
max
T
1
Tm
Tam
b
= Maximum TabTemperature = 266
o
C
= Flow Tempearture of Solder = 239
o
C
= Melting Point of Solder = 179
o
C
o
= 25 C
o
C
1. Maximum permissible rate of temperature change = 7 / sec
2. Not for RF style devices
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343
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