Gas Discharge Tube (GDT) Products
CG5 and SL0902A Series
CG5 and SL0902A Series
Description
Agency Approvals
AGENCY
AGENCY FILE NUMBER
Littelfuse Broadband Optimized
™
SL0902A Series offers
high surge ratings in a miniature package. 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. Low insertion loss is
perfectly suited to broadband equipment applications.
The capacitance does not vary with voltage, and will
not cause operational problems with ADSL2+, where
capacitance variation across Tip and Ring is undesirable.
These devices are extremely robust and are able to
divert a 2500A pulse without destruction. For AC
Power Cross of long duration, overcurrent protection is
recommended.
Littelfuse CG5 MS mini surge arresters are specifically
designed for protection of electrical and communication
equipment against over voltage transients in surface
mount assembly applications. This series offers the most
cutting edge protection using non-radioactive elements.
Features
E128662
2 Electrode GDT Graphical Symbol
Lead-free
offered in a variety of
mounting lead forms
multiple pulse duty cycle
fast rising transients.
600V
tested with 8/20μS
61000-4-5
Applications
Communication
equipment
including ADSL2+
equipment
protection
equipment
©2011 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.
7
Revised: March 30, 2011
CG5 and SL0902A Series
Gas Discharge Tube (GDT) Products
CG5 and SL0902A Series
Electrical Characteristics
Device Specifications
DC Breakdown
in Volts
Impulse
Impulse Insulation Capaci-
Breakdown Breakdown Resistance tance
in Volts
In Volts
Surge
Life
Life Ratings
Nominal Nominal
AC
Max
Impulse
AC
Dischage Impulse
Discharge Discharge Current Discharge
Current
Current
Current
Part Number
SL0902A90
CG590
CG5145
CG5150
SL0902A230
CG5230
CG5250
CG5270
SL0902A350
CG5350
CG5400
SL0902A420
CG5550
SL0902A600
CG5600
MIN
TYP
MAX
MAX
MIN
MAX
72
116
120
184
200
216
280
320
336
440
480
90
145
150
230
250
270
350
400
420
550
600
108
174
180
276
300
324
420
480
504
660
720
550
550
550
550
600
650
800
900
900
1350
1350
700
650
10
(at 50V)
10
650
1.5 pf
300 shots
(@100A)
10 shots
(@5kA)
5A
10 A
0.5kA
900
10
10
(at 100V)
1000
1500
Product Characteristics
CG5xxxLS (Outline 500), CG5xxxxLTR
& CG5350L-03TR (Outline 502), and
CG5xxxL-02 (Outline 503):
Device
Materials
17
.5±12.5 Microns Construction Ceramic
CG5xxx (Outline 501), and CG5xxxMS
& SL0902AxxxSM (Outline 505):
Device Tin Plated 17
.5±12.5 Microns
Product Marking
Glow to arc
transition current
Glow Voltage
Storage and
Operational
Temperature
140 Volts
-40 to +90
LF Logo, Voltage and date code
Voltage vs. Time Characteristic
Max dynamic breakover
voltage
Typical Insertion Loss
Voltage
(V)
Hold-over voltage
On-State voltage
0
200
400
600
Time (ns)
800
1000
1200
CG5 and SL0902A Series
8
Revised: March 30, 2011
©2011 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
CG5 and SL0902A Series
Device Dimensions
Outline 500 - CG5xxxLS
PROFILE VIEW
TOP VIEW
Outline 503 - CG5xxxL-02
PROFILE VIEW
TOP VIEW
5.00
± 0.20
[0.197 ± 0.008]
5.00
± 0.20
[0.197 ± 0.008]
5.0
± 0.2
[0.197 ± 0.008
5.30
± 0.30
[0.209 ± 0.012]
40° ± 3
°
[0.118 ± 0.008]
0.004
3.0 ± 0.2
[0.197 ± 0.008]
5.0
± 0.2
2 Surfaces
5.30
± 0.30
0.40 ± 0.03
[0.209 ± 0.012]
[0.016 ± 0.0012]
0.80
[0.031]
[2.480 ± 0.079]
6.3 ± 2
0.80
DIA. TYP.
[0.031]
8.00 ± 0.30
[0.315 ± 0.012]
9.30 ± 0.30
[0.366 ± 0.012]
SOLDER PAD LAYOUT
Outline 505 - CG5xxxMS and SL0902AxxxSM
PROFILE VIEW
TOP VIEW
8.00
[0.315]
5.50
[0.216]
5.4
± 0.15
[0.212 ± 0.006]
6.6 ± 0.2
[0.260 ± 0.008]
1.80
[0.071]
9.80
[0.386]
0.5 ± 0.1
[0.02 ± 0.004 ]
3.8
[0.15]
5.0
± 0.2
[0.197 ± 0.008]
5.4
± 0.15
[0.212 ± 0.006]
Outline 501 - CG5xxx
PROFILE VIEW
TOP VIEW
SOLDER PAD LAYOUT
4.50
[0.18]
5.10
[0.197 ± 0.006]
5.0
± 0.15
[0.2]
0.70
[0.197 ± 0.008]
5.0
± 0.2
[0.028]
Outline 502 - CG5xxxLTR
PROFILE VIEW
TOP VIEW
CG5L-03
0.60
DIA. TYP.
[0.024]
[0.197 ± 0.008]
5.0
± 0.2
CG5L &
CG5LTR (Outline
502)
0.80
DIA. TYP.
[0.024]
5.0
± 0.2
62 ± 2
[0.197 ± 0.008]
[2.441 ± 0.079]
©2011 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.
9
Revised: March 30, 2011
CG5 and SL0902A Series
Gas Discharge Tube (GDT) Products
CG5 and SL0902A Series
Soldering Parameters - Reflow Soldering (Surface Mount Devices)
Reflow Condition
- Temperature Min (T
s(min)
)
- 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
)
260
+0/-5
T
P
Ramp-up
t
P
Critical Zone
T
L
to T
P
Temperature
Pre Heat
- Temperature Max (T
s(max)
)
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
Soldering Parameters - Hand Soldering
8 minutes Max.
Soldering Parameters - Wave Soldering (Thru-Hole Devices)
300
Recommended Process Parameters:
Wave Parameter
Preheat:
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
Lead-Free 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
Note: These devices are not recommended for IR
or Convection Reflow process.
Time
(Seconds)
Preheat
Time
Dwell
Time
Cooling
Time
CG5 and SL0902A Series
10
Revised: March 30, 2011
©2011 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
CG5 and SL0902A Series
Part Numbering System and Ordering Information
CG5 xxx L TR
Series
CG5
SL0902A xxx SM
Series
SL0902A
Breakdown Voltage
90 = 90V
230 = 230V
350 = 350V
600 = 600V
Breakdown Voltage
90 = 90V
230 = 230V
350 = 350V
420 = 420V
Lead Option Code
(Blank) = Core Device (No Leads)
L
= Straight Leads
LS
= Shaped Leads
MS
= Surface Mount
Lead Option Code
SM
= Surface Mount
(Packaging Option Code is not applicable for SL0902A)
Packaging Option Code
(Blank) = Bulk (Applies to Core Devices Only)
TR
=
Tape
& Reel
Packaging
Part Number and Device Type
CG5xxx
CG5xxxLS
CG5xxxLTR
CG5xxxL-02**
CG5xxxMS
SL0902AxxxSM
Core
Shaped Leads
Straight Axial Leads
Bent Radial Leads
Surface mount
Outline 505
Device Dimensions
Reference
Outline 501
Outline 500
Outline 502
Quantity and Packaging
Description
1000pcs/bag in bulk packaging
900pcs/reel in carrier and tape*
1000pcs/reel in tape and reel*
50pcs/tray in tray and cover
900pcs/reel in carrier and tape*
* For tape specifications and dimensions, please contact factory.
** Special order items not available for general sale. Please contact Littelfuse for details.
©2011 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.
11
Revised: March 30, 2011
CG5 and SL0902A Series
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