Littelfuse CG32.7LTR Gas discharge tube (gdt) products ac and cg3 sery Datasheet

Gas Discharge Tube (GDT) Products
AC and CG3 Series
AC and CG3 Series
Description
Littelfuse AC series two-electrode line protectors
provide a high degree of surge protection in AC line
applications. The two models, AC120 and AC240
are designed for use with 120VAC and 240VAC lines
respectively. They are able to extinguish AC follow-on
currents of at least 200A.
Littelfuse CG3 two electrode high voltage (1.0 - 7.5
KV) devices are designed for surge protection and
high isolation applications, and for applications
for which bias voltages or signal levels of several
hundred volts are normally present.
Agency Approvals
Features
AGENCY
AGENCY FILE NUMBER
E320116*
*NOTE: CG3 7.5 product UL approval is currently pending
2 Electrode GDT Graphical Symbol
• Rugged ceramic-metal
construction
• Low capacitance (<1.5
pF)
• Available in tape-andreel packaging
• Available with or
without leads
Applications
AC Series:
• Long branch circuits
(AC wall outlet)
• Short branch circuits
(at breaker box,
computer, etc)
•
•
•
•
Power supplies
Test equipment
Submersible pumps
Medical electronics
CG3 Series:
• CRT terminals
• CATV equipment
• Antennas
©2013 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.
• Power supplies
• Medical electronics
AC and CG3 Series
Revised: February 19, 2013
Gas Discharge Tube (GDT) Products
AC and CG3 Series
Electrical Characteristics
Device Dimension Type
Device Specifications (at 25°C)
MIN
TYP
MAX
MAX
AC1201
A
230
285
340
500
550
AC2401
A
480
600
720
1100
1200
CG3 1.01
A
800 1000 1200
1400
1500
CG3 1.11
A
880
1100 1320
1600
1700
CG3 1.21
A
960 1200 1440
1700
1800
CG3 1.31
A
1040 1300 1560
1800
1900
CG3 1.51
A
1200 1500 1800
1800
2000
CG3 2.0
1
A
1600 2000 2400
2500
2750
CG3 2.51
A
2000 2500 3000
3200
3500
CG3 2.71
A
2160 2700 3240
3600
4000
CG3 3.01
A
2400 3000 3600
4000
4200
CG3 3.31
A
2640 3300 3960
4600
4700
CG3 4.0
2
B
3200 4000 4800
5800
6000
CG3 4.52
B
3600 4500 5400
6150
6500
CG3 5.02
B
4000 5000 6000
7500
8000
CG3 6.22,7
B
4960 6200 7440
8100
9500
CG3 6.52,7
B
5200 6500 7800
9500
10000
CG3 7.52,6,7
B
6000 7500 9000
10000
10600
Part
Number
DC Breakdown
in Volts
(@100V/s)
Life Ratings
Impulse Impulse Insulation CapaciArc
Max
Nominal
AC
Nominal
Max
BreakBreak- Resistance tance Voltage Follow
AC
Discharge Impulse
Surge
(on state
down down In
On
Discharge Current Discharge Current5
(@1MHz)
Voltage)
(1 x 50Hz
in Volts
Volts
Current3 Current
Current4 (@8/20μs)
(@100V/μs)
@1Amp Min
(@1 Kv/μsec)
MIN
MAX
(10x1sec
@50-60Hz)
9 cycles)
(@8/20μs)
TYP
*ȍ
<1.5 pf
(at 100V)
~ 25 V
200
Amps
5A
65 A
10 shots
5kA
1 shot
10kA
*ȍ
<1.5 pf
(at 100V)
~ 25 V
200
Amps
N/A
N/A
10 shots
5kA
1 shot
10kA
NOTES:
1. Refer to Production Dimensions section, outline A devices
2. Refer to Production Dimensions section, outline B devices
3. Tested to UL1449 Third Edition -- 120V r.ms. for AC120, 230V r.m.s. all others.
Conducted with suitable MOV connected in series.
4. 10 x [5(+) and 5(-)] applications 5kA @ 8/20μs
5. 1 x [1(+) and 1(-)] application 10kA @ 8/20μs
6. CG3 7.5 product UL approval is currently pending
7. When ordering this item, use suffix code D004 when entering the part number.
The older product version without D004 suffix code has been discontinued.
Refer to Part Numbering System section for additional information.
Product Characteristics
Core Outline A & B items:
Device: Tin Plated 17.5±12.5 Microns
Materials
Axial Outline A & B items:
Device & Wire: Tin Plated 17.5±12.5 Microns
Product Marking
LF Logo, Voltage and date code;
Black ink positive print
Glow to arc
transition current
< 0.5Amps
Glow Voltage
~ 140 Volts
Storage and
Operational
Temperature
-40 to +90
AC and CG3 Series
Revised: February 19, 2013
©2013 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
AC and CG3 Series
Soldering Parameters - Reflow Soldering (Surface Mount Devices)
Pre Heat
Pb – Free assembly
Critical Zone
TL to TP
Ramp-up
- Temperature Min (Ts(min))
150°C
- Temperature Max (Ts(max))
200°C
- Time (Min to Max) (ts)
60 – 180 secs
TL
TS(max)
Average ramp up rate (Liquidus Temp
(TL) to peak
3°C/second max
TS(max) to TL - Ramp-up Rate
5°C/second max
Reflow
tP
TP
- Temperature (TL) (Liquidus)
217°C
- Temperature (tL)
60 – 150 seconds
Temperature
Reflow Condition
tL
Ramp-down
Preheat
TS(min)
tS
25
Peak Temperature (TP)
260+0/-5 °C
Time within 5°C of actual peak
Temperature (tp)
10 – 30 seconds
Ramp-down Rate
6°C/second max
Time 25°C to peak Temperature (TP)
8 minutes Max.
Do not exceed
260°C
time to peak temperature
(t 25ºC to peak)
Time
Soldering Parameters - Wave Soldering (Thru-Hole Devices)
Recommended Process Parameters:
280
Wave Parameter
260
240
Lead-Free Recommendation
Preheat:
220
(Depends on Flux Activation Temperature)
200
180
160
140
(Typical Industry Recommendation)
Temperature Minimum:
100° C
Temperature Maximum:
Preheat Time:
150° C
60-180 seconds
120
100
Solder Pot Temperature:
280° C Maximum
Solder Dwell Time:
2-5 seconds
80
60
40
230
240
220
210
200
190
180
170
160
150
140
130
120
110
90
100
80
70
60
50
40
20
0
0
30
20
10
Temperature (°C) - Measured on bottom side of board
300
Time (Seconds)
Cooling Time
Preheat Time
Dwell Time
Soldering Parameters - Hand Soldering
Solder Iron Temperature: 350° C +/- 5°C
Heating Time: 5 seconds max.
©2013 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.
AC and CG3 Series
Revised: February 19, 2013
Gas Discharge Tube (GDT) Products
AC and CG3 Series
Device Dimensions
Axial
Part Numbering System and Ordering Information
PROFILE VIEW
CG3 X.X XXX D004
AC XXX XXX
TOP VIEW
Series
Series
AC Line Voltage
Breakdown Voltage
CG3
0.80DIA. TYP.
[0.031]
A
8.0 ± 0.2
[0.314 ± 0.008]
120 = 120V
240 = 240V
Lead / Packaging Option
= Core (no leads) / Bulk pack, 400 pcs per bag
L = Leaded / Bulk pack, 50 pcs per tray
LTR = Leaded / Tape & Reel, 500 pcs per reel
6.0 ± 0.2
[0.236 ± 0.008]
62 ± 2
[2.441 ± 0.079]
7.9 ± 0.3
[0.311 ± 0.012]
8.0 ± 0.2
[0.314 ± 0.008]
B
1.0 = 1000V
1.1 = 1100V
1.2 = 1200V
1.3 = 1300V
1.5 = 1500V
2.0 = 2000V
2.5 = 2500V
2.7 = 2700V
3.0 = 3000V
3.3 = 3300V
4.0 = 4000V
4.5 = 4500V
5.0 = 5000V
6.2 = 6200V
6.5 = 6500V
7.5 = 7500V
Lead / Packaging Option
= Core (no leads) / Bulk pack, 400 pcs per bag
L = Leaded / Bulk pack, 50 pcs per tray
LTR = Leaded / Tape & Reel, 500 pcs per reel
0.80DIA. TYP.
[0.031]
Special Suffix Code
Enter this D004 special suffix code when placing orders
for CG36.2, CG36.5 and CG37.5 only
Core
PROFILE VIEW
TOP VIEW
A
8.0 ± 0.2
[0.314 ± 0.008]
6.0 ± 0.2
[0.236 ± 0.008]
8.0 ± 0.2
[0.314 ± 0.008]
B
7.9 ± 0.3
[0.311 ± 0.012]
Packaging Dimensions
For 'LTR' Option Code Axial Lead Items
<1.2 Max. Lead Bend
254.0 - 356.0
[10.0 - 14.0]
<0.8 Max
52.4
[2.063]
80.0
[3.15]
Direction of Feed
22.8
[0.898]
6.4
[0.252]
5.0 Pitch
[0.197]
AC and CG3 Series
Revised: February 19, 2013
©2013 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.
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