CLARE TG-221

HIGH-ENERGY TRIGGERED SPARK GAPS
Triggergaps
DESCRIPTION
CP Clare's Triggergaps are high-energy spark gaps that are capable of switching stored energy in a fraction of a
microsecond. Triggergaps require no standby power, are extremely rugged, and require only a low-energy, highvoltage triggering pulse. The miniature TA series (1-15kV) provides switching capability for pulses with energy
content as high as 50 joules. The larger TB series (2.5-25 kV) will reliably switch pulses with up to 300 joules of
energy. The TG-221 to 226 (1-60 kV) can switch pulses with energy contents of up to 6000 joules and feature
adjustable self-breakdown voltages.
FEATURES
APPLICATIONS
■ Tight self-breakdown voltage tolerance
(±10%;TA & TB series)
■ Adjustable self-breakdown voltage
(TG-221 to TG-226)
■ Rugged ceramic-metal construction
■ Refractory metal electrodes
■ Corrosion-resistant stainless steel
external surfaces (TB series)
■
■
■
■
High current surge generators
Exploding bridge wire systems
Crowbars
Flashtube triggers
STANDARD VOLTAGES
Series or P/N
Self-Breakdown
Units
Voltage (typ)
TA
1.0
2.0
5.0
7.0
10.0
15.0
kV
kV
kV
kV
kV
kV
TB
2.5
5.0
10.0
15.0
20.0
25.0
kV
kV
kV
kV
kV
kV
1.0-20.0
18.0-40.0
1.0-20.0
18.0-40.0
35.0-60.0
kV
kV
kV
kV
kV
TG-221
TG-222
TG-224
TG-225
TG-226
North America: 1-800-CPCLARE
558
Europe: 32-11-300868
Asia: 886-2-2523-6368
Japan: 81-3-3980-2212
HIGH-ENERGY TRIGGERED SPARK GAPS
Triggergaps
SPECIFICATIONS
All characteristics at 25˚C
PARAMETER
TA-1.0
CONDITIONS
SYMBOL MIN
TA-2.0
TYP MAX
MIN
TYP
TA-5.0
MAX MIN
TYP
MAX UNITS
Device Specifications
Self-Breakdown Voltage
Applied Voltage
Trigger Voltage1
Dimension A
Life Ratings
100V/s
t r=0.5µs, PW=3.0µs
Discharge Life2
≥1000 shots into .2Ω
PARAMETER
CONDITIONS
EZ
Ebb
etrig
-
0.9 1.0
1.1
1.8
2.0
2.2
4.5
5.0
5.5
kV
0.4
0.85
0.7
1.7
1.2
4.2
kV
3.0
2.5
3.0
2.5
3.5
2.5
kV pk
0.687 0.750 0.813 0.697 0.760 0.823 0.697 0.760 0.823 inches
45
-
-
50
-
MAX
MIN
TA-7.0
SYMBOL MIN TYP
-
50
-
MAX
MIN
TA-10.0
TYP
-
J
TA-15.0
TYP
MAX UNITS
Device Specifications
Self-Breakdown Voltage
Applied Voltage
Trigger Voltage1
Dimension A
Life Ratings
100V/s
t r=0.5µs, PW=3.0µs
Discharge Life2
≥1000 shots into .2Ω
PARAMETER
CONDITIONS
EZ
Ebb
etrig
-
6.3 7.0
7.7
9.0 10.0 11.0 13.5 15.0 16.5
kV
1.9
5.8
3.5
8.5
7.0
12.5
kV
3.7
2.8
5
3.5
8.0
4.5
kV pk
0.697 0.760 0.823 0.727 0.790 0.853 0.767 0.830 0.893 inches
50
-
-
60
-
-
70
MAX
MIN
TYP
MAX
MIN
TYP
MAX UNITS
2.75
2.0
1.8
0.23
2.03
4.5
1.5
3.2
-
5.0
1.99
-
5.5
4.0
1.9
0.23
2.03
9.0
3.0
4.6
-
10.0
1.99
-
11.0
8.0
2.1
0.58
2.10
kV
kV
kV pk
inches
inches
inches
-
150
-
-
300
-
-
J
MAX
MIN
TYP
MAX
MIN
TYP
MAX UNITS
16.5
12.0
3.5
0.58
2.10
18.0
6.0
8.0
-
20.0
2.79
-
22.0
16.0
4.5
0.58
2.10
22.5
7.5
9.7
-
25.0
2.79
-
27.5
20.0
5.2
0.58
2.10
kV
kV
kV pk
inches
inches
inches
-
300
-
-
300
-
-
J
TB-2.5
SYMBOL MIN TYP
TB-5.0
-
-
J
TB-10.0
Device Specifications
Self-Breakdown Voltage
Applied Voltage
Trigger Voltage1
Dimension A
Dimension B
Dimension C
100V/s
t r=0.5µs, PW=3.0µs
EZ
Ebb
etrig
-
Discharge Life2
discharges into .3Ω
-
PARAMETER
CONDITIONS
2.25 2.50
0.8
3.1
1.99
-
Life Ratings
150
-
TB-15.0
SYMBOL MIN TYP
TB-20.0
TB-25.0
Device Specifications
Self-Breakdown Voltage
Applied Voltage
Trigger Voltage1
Dimension A
Dimension B
Dimension C
100V/s
t r=0.5µs, PW=3.0µs
EZ
Ebb
etrig
-
discharges into .3Ω
-
13.5 15.0
4.5
6.3
2.67
-
Life Ratings
Discharge Life2
300
-
1
The trigger voltages given in these tables are the minimum triggering voltages necessary for triggering at the corresponding applied 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 — higher trigger voltages are
required if it is applied across the trigger voltage and opposite main electrodes.
2
End point for life testing is a 15% reduction in the self-breakdown voltage.
3
Because the self-breakdown voltage of these devices is adjustable, the trigger voltage required for any particular applied voltage cannot be specified. Clare suggests setting the selfbreakdown voltage to at least 115% of the maximum applied voltage.
www.cpclare.com
559
HIGH-ENERGY TRIGGERED SPARK GAPS
Triggergaps
SPECIFICATIONS
All characteristics at 25˚C
TG-221
PARAMETER
CONDITIONS
SYMBOL MIN TYP
TG-222
TG-224
MAX MIN
TYP
MAX MIN
TYP
MAX UNITS
Device Specifications
Self-Breakdown Voltage
Applied Voltage
Dimension A
Dimension B
100V/s
EZ
E bb
-
1.0
0.5
-
2.25
2.50
20.0
18.0
-
18.0
15.0
-
3.25
2.50
40.0
35.0
-
1.0
0.5
-
3.00
4.50
20.0
19.0
-
kV
kV
inches
inches
-
20
3000
-
-
20
3000
-
-
50
6000
-
-
kA
J
-
Life Ratings
Peak Current
Discharge Life 3
PW=30µs
1000 shots into 1Ω
PARAMETER
CONDITIONS
TG-225
SYMBOL MIN TYP
TG-226
MAX MIN
TYP
MAX
UNITS
40.0
35.0
-
35.0
30.0
-
4.50
4.50
60.0
55.0
-
kV
kV
inches
inches
-
50
6000
-
-
kA
J
Device Specifications
Self-Breakdown Voltage
AppliedVoltage
Dimension A
Dimension B
100V/s
EZ
E bb
-
18.0
15.0
3.50
4.50
-
50
6000
-
Life Ratings
Peak Current
Discharge Life 3
PW=30µs
1000 shots into 1Ω
-
1
The trigger voltages given in these tables are the minimum triggering voltages necessary for triggering at the corresponding applied 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 — higher trigger voltages are
required if it is applied across the trigger voltage and opposite main electrodes.
2
End point for life testing is a 15% reduction in the self-breakdown voltage.
3
Because the self-breakdown voltage of these devices is adjustable, the trigger voltage required for any particular applied voltage cannot be specified. Clare suggests setting the selfbreakdown voltage to at least 115% of the maximum applied voltage.
MECHANICAL DIMENSIONS
DIMENSIONS
mm
(inches)
TA SERIES
A
11.11 MAX.
(0.438)
16.67 ± 0.79 DIA.
(0.656 ± 0.031)
25.40 ± 1.59
(1.000 ± 0.063)
ORDERING INFORMATION
Triggergaps with self-breakdown voltages other than the standard values listed (in the ranges of 1-15kV for the TA series and 2.5-25kV for the
TB series) are available upon request.
A complete part number is represented by the digits below. Self-breakdown voltages are expressed in kV. For example, TA-5.0 is a 5kV TA
series device and TB-25.0 is a 25kV TB series device. The TG-221
to 226 are ordered by the appropriate part number as given in the
specifications.
1.59 DIA. TYP.
(0.063)
12.70 ± 1.59
(0.500 ± 0.063)
TA- X.X
TA- XX.X
TB- X.X
TB- XX.X
4.76 ± 1.59
(0.188 ± 0.063)
TB SERIES
Series
C
TA
TB
B
ADJACENT
A DIA.
North America: 1-800-CPCLARE
560
for 1.0-9.0kV
for 10.0-15.0kV
for 2.5-9.0kV
for 10.0-25.0kV
Self-breakdown voltage
See specification tables
OPPOSITE
TRIGGER
Europe: 32-11-300868
Asia: 886-2-2523-6368
Japan: 81-3-3980-2212
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