HIGH-ENERGY TRIGGERED SPARK GAPS
TX4.5
DESCRIPTION
CP Clare’s Triggergaps are high-energy spark gaps that are capable of switching stored energy in a
fraction of a microsecond. Triggergaps use no standby power, are extremely rugged and require only a
low energy high voltage triggering pulse.
FEATURES
n
Rugged ceramic-metal construction
n
-55°C to +125°C operating temperature
n
Short delay time
n
Compact size
n
High reliability
n
Vibration tested to MIL-STD-202D
method 204, test conditions A
n
Thermal shock tested per MIL-STD-202D
method 107, test condition B
n
Mechanical shock tested per MIL-STD-
202D method 204, test condition A
n
Capable of >2500 discharges
APPLICATIONS
n
High current surge generators
n
Explosives detonation
n
Exploding Bridge Wire (EBW)
n
Exploding Foil Initiator (EFI)
n
Slapper Detonator
n
Electronic Safe and Arm
n
Crowbars
n
Flash tube triggers
n
Rocket motor ignition
n
Missile stage separation
n
Furnace ignition
ORDERING INFORMATION
TX 4.5 L-XX
STANDARD VOLTAGES
Series or P/N
Self Breakdown
Voltage (typ)
Units
Series
Operating Voltage
Outline
See Figure 1
TX
4.5
kV
Note: Other voltages are available upon request.
North America: 1-800-CPCLARE
Europe: 32-11-300868
Asia: 886-2-2523-6368
Japan: 81-3-3980-2212
356
HIGH-ENERGY TRIGGERED SPARK GAPS
TX4.5
SPECIFICATIONS
PARAMETER
1
Device Specifications
Self-Breakdown Voltage
Operating Voltage
Trigger Voltage
2
Delay Time
3
A/C
A/C
A/C
C
C
A
A
Peak Pulse Current
Isolation Resistance
Life Ratings
Standard version
Discharge life
4
A/C
I
b
= 5 kA
Pulse energy =
1.6J
V
Ebb
=4000
Load = 0.25
Ω
I
b
= 5 kA
Pulse energy =
0.7J
A/C
V
Ebb
=3000
Load = 0.25
Ω
1
2
MODE
CONDITION
SYMBOL
E
z
E
bb
E
trig
T
delay
MIN
TYP.
MAX
UNITS
100V/s
V
Ebb
=3000
V
Ebb
=3000
@ E
bb
min
@ E
bb
max
@ E
bb
min
@ E
bb
max
4000V
4.3
2000
4.5
4000
2000
1000
150
75
50
5
kV
V
V
ns
A/C
200
kA
GΩ
2500
Shots
10,000
Shots
Unless otherwise noted, specifications are determined by testing in the circuit shown in figure 2.
The trigger voltages given in these tables are the minimum triggering voltages necessary for triggering at the corresponding
operating voltage limits. As the applied trigger voltage increases, the trigger voltage required for triggering decreases. It is
assumed that the trigger is applied across the trigger and adjacent main electrodes (mode C, see figure 3) or applied across the
trigger electrode and opposite main electrodes (mode A, see figure 3)
Delay time is defined as the delay between the time the trigger voltage reaches the point of breakover and the time the arc in the
main gap begins conduction.
Product experiences a less than 10% reduction in self breakdown voltage after test.
3
4
www.cpclare.com
357
HIGH-ENERGY TRIGGERED SPARK GAPS
TX4.5
01 Outline
Trigger
Electrode
Opposite
Adjacent
0.32
02 Outline
Trigger
Electrode
Adjacent
Opposite
0.32
0.35
0.194 0.200
0.35
0.194 0.200
R0.030
0.140
0.110
0.04
TYP
0.130±0.015
0.381±0.003
0.222±0.003
0.031±0.002
0.040±0.002 DIA.
R0.030
0.210
0.120±0.003
0.210
0.381±0.003
0.222±0.003
0.031±0.002
0.040±0.002 DIA.
0.040±0.002
05 Outline
0.32
Adjacent
Trigger Electrode
Oposite
0.200
R0.030
0.210
0.381±0.003
0.222±0.003
0.031±0.002
0.040±0.002 DIA.
S Outline
0.22
0.35
0.03
0.04
0.14
0.24
0.10
0.08
0.32
0.14
0.04
0.79
Figure 1
Construction: Ceramic with tin/lead plated metal electrodes, hermetically sealed.
North America: 1-800-CPCLARE
Europe: 32-11-300868
Asia: 886-2-2523-6368
Japan: 81-3-3980-2212
358
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