Gas Discharge Tube (GDT) Products
SL1002A Series
SL1002A Series
Description
®
The Broadband Optimized™ SL1002A series has
been especially developed for use in broadband
equipment. Special design features provide high
levels of protection against fast rising transients
in the 100V/μs to 1kV/μs range usually caused by
lightning disturbances. These devices have ultra low
capacitance (typically 1.2pF or less) and present
insignificant signal losses up to 1.5GHz. These
devices are extremely robust and are able to divert
a 5000A pulse without destruction. For AC Power
Cross of long duration, overcurrent protection is
recommended.
Agency Approvals
Features
AGENCY
®
AGENCY FILE NUMBER
E128662
2 Electrode GDT Graphical Symbol
• RoHS compliant/Lead-
free
• Ultra low insertion loss
• Surface mountable
• 5kA surge capability
tested with 8/20μS–
Pulse as defined by IEC
61000-4-5
• Excellent response to
fast rising transients
• Can be used to meet
Telcordia GR1089
without series
resistance
Applications
• 10/700 6kV capability,
as per ITU-T Rec. K.21,
enhanced test level
• 2000 A 2/10μs surge
rating
• Meet FCC part 68
10/160μs waveform,
200A test and 10/560μs
waveform 100A test
• Halogen-free
• Broadband equipment
• ADSL equipment
• XDSL equipment
• Satellite and CATV
equipment
• General telecom
equipment
©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.
35
Revised: November 10, 2009
SL1002A Series
Gas Discharge Tube (GDT) Products
SL1002A Series
Electrical Characteristics
Device Specifications
(at 25°C)
DC Breakdown
Impulse
Impulse Insulation Capaci-
in Volts
1,2
Breakdown Breakdown Resistance tance
in Volts
3,4
in Volts
3,4
(@100V/s)
(@1MHz
(@100V/μs)
(@1kV/μs)
Life Ratings
Arc
Voltage
Nominal
Impulse
Discharge
(@100A
Current
10/1000μs)
(8/20μs)
Surge
Life
Part Number
(on state
voltage)
0V Bias)
@1Amp Min
MAX
TYP
Nominal
AC
Discharge
Current
(10x1s
@50-60Hz)
DC
Holdover
Voltage
5
Max Impulse Discharge
Current
(1 Application)
MIN
TYP
MAX
MAX
MIN
TYP
@ 2/10 μs
@ 10/350 μs
SL1002A075
SL1002A090
SL1002A230
SL1002A250
SL1002A260
SL1002A350
SL1002A470
SL1002A600
60
72
75
90
90
108
400
650
10
9
Ω
(at 50V)
50 V
184 230 276
200 250 300
210 260 310
280 350 420
376 470 564
480 600 720
800
900
1100
1200
900
1000
1200
1300
10
9
Ω
(at 500V)
600
700
10
9
Ω
1.2 pF
(at 100V)
~15 V
300
shots
6
10 shots
7
(@ 5kA)
5A
135 V
2 kA
1.5 kA
SL1002A600SP 570 600 780
Notes:
1. At delivery AQL 0.65 level II, DIN ISO 2859
2. In ionized mode
3. In ionized mode, tested according to ITU-T Rec. K.12
4. Comparable to the silicon measurement Switching Voltage (Vs)
5. Reference REA PE-80, 0.2A. Tested to ITU-T Rec. K.12 and REA PE-80 < 150 msecs.
6. 300 Applications [150(+) & 150(-)]
7 10x[5x (+) & 5x (-)] Applications
.
Product Characteristics
Construction
= Ceramic Insulator
Device Finish
= Dull Tin-plated 17 +/-12.5
.5
microns
Littelfuse 'LF' Mark, voltage and date
code
Glow to Arc
Transition Current
Glow Voltage
Storage and
Operational
Temperature
< 0.5 Amps
~60 - 140 Volts
-40 to +90°C
Materials
Product Marking
Voltage vs. Time Characteristics
Max dynamic
breakover voltage
Voltage
(V)
Hold-over voltage
On-State voltage
0
200
400
600
Time (ns)
800
1000
1200
SL1002A Series
36
Revised: November 10, 2009
©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.
Gas Discharge Tube (GDT) Products
SL1002A Series
Insertion Loss Characteristics
Typical Insertion Loss Characteristics (90V)
2
0
-2
-4
S21 [dB]
S21 [dB]
1.E+08
1.E+09
Frequency [Hz]
1.E+10
1.E+11
-6
-8
-10
-12
-14
-16
-18
1.E+07
-10
-12
-14
-16
1.E+07
Typical Insertion Loss Characteristics (600V)
2
0
-2
-4
-6
-8
1.E+08
1.E+09
Frequency [Hz]
1.E+10
1.E+11
Device Dimensions
'C' Type Core Devices
Dimensions are in millimeters [and inches]
'SM' Type Surface Mount Devices
Dimensions are in millimeters [and inches]
TOP VIEW
PROFILE VIEW
SEMI–PROFILE VIEW
TOP VIEW
PROFILE VIEW
SEMI–PROFILE VIEW
Ø6.0 ± 0.15
[0.236 ± 0.0059]
4.1 ± 0.2
[0.161 ± 0.0079]
3.6 ± 0.2
[0.142 ± 0.0079]
Ø6.0 ± 0.15
6.2 ± 0.15
3.9 Ref
[0.154 Ref]
3.6 ± 0.2
[0.142 ± 0.0079]
4.1 ± 0.2
[0.161 ± 0.0079]
Ø6.2 ± 0.15
0.50
5
7.
±
2
0.
0.50
SOLDER PAD LAYOUT
1.30 [0.051]
5.00
[0.197]
3.50 [0.138]
©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.
37
Revised: November 10, 2009
SL1002A Series
Gas Discharge Tube (GDT) Products
SL1002A Series
Soldering Parameters - Reflow Soldering (Surface Mount Devices)
Reflow Condition
- Temperature Min (T
s(min)
)
Pre Heat
- Temperature Max (T
s(max)
)
- Time (Min to Max) (t
s
)
Average Ramp-up Rate (Liquidus Temp
(T
L
) to peak)
T
S(max)
to T
L
- Ramp-up Rate
Reflow
- Temperature (T
L
) (Liquidus)
- Temperature (t
L
)
Pb-free assembly
150°C
T
P
Ramp-up
t
P
Critical Zone
T
L
to T
P
60 – 180 seconds
3°C/second max.
5°C/second max.
217°C
60 – 150 seconds
260
+0/-5
Temperature
200°C
T
L
T
S(max)
Preheat
t
L
Ramp-down
T
S(min)
t
S
25
time to peak temperature
(t 25ºC to peak)
Time
Peak Temperature (T
P
)
Time within 5°C of Actual Peak
Temperature (t
p
)
Ramp-down Rate
Time 25°C to Peak Temperature (T
P
)
Do not exceed
°C
10 – 30 seconds
6°C/second max.
8 minutes max.
260°C
Soldering Parameters - Wave Soldering (Thru-Hole Devices)
300
Recommended Process Parameters:
Wave Parameter
Preheat:
(Depends on Flux Activation Temperature)
(Typical Industry Recommendation)
Temperature
(°C) - Measured on bottom side of board
280
260
240
220
200
180
160
140
120
100
80
60
40
20
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
10
20
30
40
50
60
70
80
90
0
0
Lead-Free Recommendation
Temperature Minimum:
Temperature Maximum:
Preheat Time:
Solder Pot Temperature:
Solder Dwell Time:
100
°
C
150
°
C
60-180 seconds
280
°
C Maximum
2-5 seconds
Time
(Seconds)
Preheat
Time
Dwell
Time
Cooling
Time
Soldering Parameters - Hand Soldering
Solder Iron Temperature: 350° C +/- 5°C
Heating Time: 5 seconds max.
SL1002A Series
38
Revised: November 10, 2009
©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.
Gas Discharge Tube (GDT) Products
SL1002A Series
Packaging
‘C’ Type Core Items:
Package bulk pack in polybag, 1000 pcs/bag
'SM' Type Surface Mount Items:
Packaged tape and reel carrier, 1000 pcs/reel (specifications below)
Dimensions are in millimeters [and inches]
275.0
[10.83]
100.0
[3.94]
6.5 ± 0.1
[0.256 ± 0.004]
3°
Dimensions are in millimeters [and inches]
1.50 +0.10
0
[0.059 +0.004 ]
0
6.5 ± 0.1
[0.256 ± 0.004]
0.40
[0.016]
7.5 ± 0.1
[0.295 ± 0.004]
16 ± 0.3
[0.630 ± 0.012]
76.0
[2.99]
25.0
[0.98]
R0.30 max.
[0.012]
1.50
[0.059]
2 ± 0.1
[0.079 ± 0.004]
8 ± 0.1
[0.315 ± 0.004]
1.75 ± 0.1
[0.069 ± 0.004]
17.7
[0.697]
Direction of Feed
10x4=40 ± 0.2
[10x0.157=1.575 ± 0.008]
4 ± 0.1
[0.157 ± 0.004]
Part Numbering System and Ordering Information
SL1002 A XXX XX
Surge Capability
Voltage
Pin Configuration
C
= Core
(Packed in polybag, 1000pcs/bag)
SM
= Surface Mount
(Packed in carrier and tape, 1000pcs/reel)
©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.
39
Revised: November 10, 2009
SL1002A Series
