Gas discharge tube (gdt) products, Cg/cg2 series – Littelfuse CG_CG2 SN Series User Manual
Page 2
Gas Discharge Tube (GDT) Products
©2013 Littelfuse, Inc.
Revised: January 10, 2013
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.
CG/CG2 Series
CG/CG2 Series
Electrical Characteristics
Part
Number
Device Specifications (at 25°C)
Life Ratings
DC Breakdown
in Volts
(@100V/s)
Impulse
Break-
down
in Volts
(@100V/µs)
Impulse
Break-
down In
Volts
(@1 Kv/µsec)
Insulation
Resistance
Capaci-
tance
(@1MHz)
Arc
Voltage
(on state
Voltage)
@1Amp
Min
Surge
Life
(@500A
10/1000µs)
Nominal
Impulse
Discharge
Current
(8/20µs)
Nominal
AC
Discharge
Current
(10x1sec
@50-60Hz)
AC
Dischage
Current
(9 cycle
@50Hz)
DC
Holdover
Voltage
2
Max
Impulse
Discharge
Current
(1 Application
@ 10/350µs)
MIN TYP MAX
MAX
MIN
MAX
TYP
TYP
CG75
60
75
90
400
650
10
10
Ω
(at 50V)
1.5 pf
15 V
400
shots
10 shots
(@20kA)
3
20 A
100 A
52 V
4kA
CG90
72
90
108
400
600
CG90 SN
72
90
108
400
600
CG110
88
110
132
450
600
80 V
2.5kA
CG2145
116
145
174
500
600
10
10
Ω
(at 100V)
CG2145 SN
120
145
174
500
600
CG2230
195
230
265
600
700
135 V
CG2230 SN
184
230
276
600
700
CG2250
213
250
288
625
725
CG2250 SN
200
250
300
625
725
CG2300
255
300
345
700
800
CG2300 SN
240
300
360
700
800
CG2350
297
350
403
750
900
CG2350 SN
280
350
420
750
900
CG2420
357
420
483
800
1000
CG2470
400
470
540
850
1200
CG2470 SN
376
470
564
850
1200
CG2600
510
600
690
1000
1400
CG2600 SN
480
600
720
1000
1400
CG2800
1
680
800
920
1200
1500
10 shots
(@10kA)
10 A
CG21000
1
850 1000 1150
1500
1600
65 A
NOTES:
1. Tested to UL1449 Third Edition
2. Reference REA PE-80, 0.2A. Tested to ITU-T Rec K.12 and REA PE 80 < 150 mSec.
Product Characteristics
Materials
LS, Axial:
Device: Tin Plated 2–5 Microns
Lead Wires: Tin Plated 17.5 ± 12.5 Microns
Construction: Ceramic Insulator
Core:
Device: Tin Plated 17.5 ± 12.5 Microns.
Construction: Ceramic Insulator
MS:
Device: Dull Tin Plated 7–9 Microns
Construction: Ceramic Insulator
Product Marking LF Logo, Voltage and date code; Black in
positive print
Glow to arc
transition current
< 0.5Amps
Glow Voltage
60-160 Volts
Storage and
Operational
Temperature
-40 to +90
Maximum Follow
On Current
1
230 Volts r.m.s, 200 Amps.
(800V and 1000V devices tested to UL1449 3rd edition)