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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 -55C to +125C 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
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
PARAMETER1 Device Specifications Self-Breakdown Voltage Operating Voltage Trigger Voltage Delay Time
3 2
MODE
CONDITION
SYMBOL Ez Ebb Etrig Tdelay
MIN
TYP.
MAX
UNITS
A/C A/C A/C C C A A
100V/s VEbb =3000 VEbb =3000 @ Ebb min @ Ebb max @ Ebb min @ Ebb max 4000V
4.3 2000
4.5 4000 2000 1000 150 75 50 5
kV V V
ns
Peak Pulse Current Isolation Resistance Life Ratings Standard version Discharge life
4
A/C 200
kA G
Ib = 5 kA A/C Pulse energy = 1.6J VEbb =4000 Load = 0.25 Ib = 5 kA Pulse energy = 0.7J A/C VEbb =3000 Load = 0.25 10,000 Shots 2500 Shots
1 2
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
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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 0.1300.015 0.3810.003 0.2220.003 0.0310.002 0.0400.002 DIA.
R0.030
0.210
0.1200.003
0.210
0.3810.003 0.2220.003 0.0310.002 0.0400.002 DIA.
0.0400.002
05 Outline
0.32 Adjacent Trigger Electrode Oposite
0.200 R0.030
0.210
0.3810.003 0.2220.003 0.0310.002 0.0400.002 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
HIGH-ENERGY TRIGGERED SPARK GAPS TX4.5
TEST CIRCUIT
CP Clare Triggergap
+
VT(in)
50kOhms CT
T1 50kOhms
+
Ebb
2N6798 CVR
0.2 f
Figure 2
MODE DESIGNATIONS
+V
Trigger Adjacent
+V
Trigger Adjacent
E bb
Opposite
Opposite
E bb Mode A
Figure 3
Mode C
www.cpclare.com
359

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