CLARE TX45

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.
APPLICATIONS
FEATURES
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
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-STD202D method 204, test condition A
n Capable of >2500 discharges
STANDARD VOLTAGES
ORDERING INFORMATION
TX 4.5 L-XX
Series or P/N
Self Breakdown
Voltage (typ)
Units
TX
4.5
kV
Series
Operating Voltage
Outline
See Figure 1
Note: Other voltages are available upon request.
North America: 1-800-CPCLARE
356
Europe: 32-11-300868
Asia: 886-2-2523-6368
Japan: 81-3-3980-2212
HIGH-ENERGY TRIGGERED SPARK GAPS
TX4.5
SPECIFICATIONS
PARAMETER1
MODE
CONDITION
Self-Breakdown Voltage
A/C
100V/s
Operating Voltage
A/C
MAX
MIN
TYP.
Ez
4.3
4.5
VEbb =3000
Ebb
2000
A/C
VEbb =3000
Etrig
C
@ Ebb min
Tdelay
C
@ Ebb max
150
A
@ Ebb min
75
A
@ Ebb max
50
SYMBOL
UNITS
Device Specifications
Trigger Voltage
2
3
Delay Time
Peak Pulse Current
4000
1000
5
4000V
V
V
2000
A/C
Isolation Resistance
kV
ns
kA
200
GΩ
2500
Shots
10,000
Shots
Life Ratings
Ib = 5 kA
Standard version
Discharge life
4
A/C
Pulse energy =
1.6J
VEbb =4000
Load = 0.25 Ω
Ib = 5 kA
Pulse energy =
0.7J
A/C
VEbb =3000
Load = 0.25 Ω
1
Unless otherwise noted, specifications are determined by testing in the circuit shown in figure 2.
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)
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.
4
Product experiences a less than 10% reduction in self breakdown voltage after test.
www.cpclare.com
357
HIGH-ENERGY TRIGGERED SPARK GAPS
TX4.5
02 Outline
01 Outline
Trigger
Electrode
Trigger
Electrode
Adjacent
Opposite
Adjacent
Opposite
0.32
0.32
0.35
0.35
0.194 0.200
0.194 0.200
R0.030
0.04
TYP
R0.030
0.140
0.110
0.210
0.210
0.120±0.003
0.130±0.015
0.381±0.003
0.381±0.003
0.222±0.003
0.040±0.002
0.222±0.003
0.031±0.002
0.040±0.002 DIA.
0.031±0.002
0.040±0.002 DIA.
05 Outline
0.32
Adjacent
Oposite
Trigger Electrode
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
358
Europe: 32-11-300868
Asia: 886-2-2523-6368
Japan: 81-3-3980-2212
HIGH-ENERGY TRIGGERED SPARK GAPS
TX4.5
TEST CIRCUIT
CP Clare
Triggergap
+
T1
50kOhms
VT(in)
CT
50kOhms
+
Ebb
2N6798
0.2 f
CVR
Figure 2
MODE DESIGNATIONS
+V
+V
Trigger
Trigger
Adjacent
Adjacent
E bb
Opposite
Opposite
E bb
Mode A
Mode C
Figure 3
www.cpclare.com
359
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