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