CG4 Datasheet, PDF (2/3 Pages) Littelfuse – Gas Discharge Tube (GDT) Products

Gas Discharge Tube (GDT) Products
CG4 Series
Electrical Characteristics
Part
Number
CG40.8
CG41.0
CG41.2
CG41.8
CG42.0
CG42.5
CG42.7
CG43.0
Device Specifications (at 25°C)
DC Breakdown
in Volts
(@100V/s)
Impulse
Break-
down
in Volts
(@100V/µs)
Impulse
Break-
down In
Volts
(@1 kV/µs)
Insulation
Resistance
Capaci-
tance
(@1MHz)
MIN TYP MAX MAX
MIN
MAX
640 800 960 1200
1300
800 1000 1200 1400
1500
960 1200 1440 1600
1700
1440 1800 2160 2400
1600 2000 2400 2600
2500
2700
1GΩ*
0.8pf
2000 2500 3000 3000 3200
2160 2700 3240 3200 3600
2400 3000 3600 3500 3900
Max
Impulse
Discharge
Current
(8/20µs)
AC
Dischage
Current
(50Hz, 1sec)
MIN
10 Shots
@
(3kA)
3A
1 Shot at
5kA
Life Ratings
AC
Dischage
Current
(Single, 9
Cycles)
Arc
Voltage
(On State
Voltage @
1Amp, 1Min)
Impulse
Life
(10/1000µs)
(100A)
MIN
MIN
10A
20V
300
Shots
Note:
* Insulation resistance measured at:
• 250Vdc for CG40.8,
• 500Vdc for CG41.0 8, CG41.0, CG41.8 and CG42.0,
• 1000Vdc for CG42.5, CG42.7 and CG43.0
Product Characteristics
Materials
Device Tin Plated 17.5 ± 12.5
Microns
Construction: Ceramic Insulator
Storage and Operational
Temperature
-40 to +90°C
Soldering Parameters - Reflow Soldering (Surface Mount Devices)
Reflow Condition
Pb – Free assembly
- 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)
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
150°C
200°C
60 – 180 secs
3°C/second max
5°C/second max
217°C
60 – 150 seconds
260^+0/-5 °C
10 – 30 seconds
6°C/second max
8 minutes Max.
260°C
T_P
T_L
T_S(max)
Ramp-up
T_S(min)
25
Preheat
t_S
time to peak temperature
(t 25ºC to peak)
t_P
Critical Zone
TL to TP
t_L
Ramp-down
Time
© 2016 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 06/30/16