PerkinElmer GP-87 Triggered spark gap Datasheet

Triggered Spark Gaps
P
erkinElmer’s Triggered
Ceramic-Metal
Spark Gaps are a family of versatile
EVERYTHING
IN A
NEW
high voltage switches. They consist
LIGHT.
of three electrodes in a hermetically
sealed, pressurized ceramic envelope. Triggered Spark Gaps are
generally characterized by a peak
current capability of thousands to
tens of thousands of amperes, delay
times of tens of nanoseconds, arc
resistance of tens of milliohms and
inductance of 5 to 30 nanohenries.
They are suitable for capacitor
switching applications such as flashlamps, electrically pumped gas
lasers, medical lithotripters, and
as crowbar protection devices.
Features
• Fast switching operation
• High voltage holdoff
• Ceramic-metal construction
• No warm up period
• High current capability
• Long life
Triggered Spark Gap Ratings
O -A
PerkinElmer Range, kV
Model
Min/Max
No.
(1,10)
SBV, kV
VT
Min Trig
(kV Open
Circuit
(5)
Typical Delay Time*
Trigger
Mode
(2)
(3)
(4)
GP-89
0.7
2.1
2.6
C
GP-90
1.3
3.4
4.2
C
GP-91
4.4
10
12.5
A,C
GP-93
8
20
25
A, C
GP-82B
0.4
1.6
2
A,B
GP-31B
2
6
7.5
GP-20B
3.5
11
14
GP-46B
8
20
25
GP-85
2
6
8
GP-86
6
15
20
GP-87
10
24
30
GP-70
12
36
42(8)
GP-30B
2
6
7.5
GP-22B
6
15
19
GP-12B
10
24
30
GP-14B
12
36
42(8)
GP-41B
12
36
42
GP-32B
20
48
60(8)
GP-15B
25
60
86(8)
GP-74B
40
100
120(8)
GP-81B
40
100
120(9)
10
10
Recommended * when operated in mode A
(Nanoseconds)
PerkinElmer
Transformer At 70% SBV At 40% SBV
Simultaneous Ratings Simultaneous Ratings
Crowbar Service,
Repetitive Switching
Typical Life:
Typical Life:
5000-20,000 Shots
1-5 Million Shots
(6, 7)
A
(11)
(11)
TR-148A
100
1000
TR-180B
5 kA peak
3 millicoulombs/shot
0.1 coulomb
lb = 35 mAdc
lp = 6 Aac
TR-148A
30
300
TR-180B
7.5 kA peak
4 millicoulombs/shot
0.2 coulomb
lb = 60 mAdc
lp = 8 Aac
A,B
20
A
TR-1795
TR-180B
30
300
TR1700
25 kA peak
4 millicoulombs/shot
0.4 coulomb
lb = 100 mAdc
lp = 10 Aac
A,B
TR-1795
20
A
30
300
50 kA peak
0.5 coulomb
TR-1700
10 millicoulombs/shot
A,B
20
A
20
TR-1795
TR-1700
TR-1795
A
30
300
30
300
Peak currents up to 100 lb = 200 mAdc
kA and charge transfer lp = 15 Aac
up to 5 coulombs are
obtainable at reduced
life (100-1000 shots).
TR-1700
Notes
1. Optimum operating voltage is typically 60 to 80% of SBV.
2. Operation below minimum value may result in erratic firing
over time.
3. Operation at this value may result in self-firing over time.
4. Represents minimum main-gap breakdown voltage with no
trigger applied.
5. Value shown contains safety factor for end-of-life requirements.
6. PerkinElmer TM-11A Trigger Module can be used to trigger
all gaps.
7. Transformers listed vary mechanically and electrically. See
PerkinElmer Transformer Data Sheet.
page 2
8. These units must be operated in a liquid or gas dielectric to prevent
external flashover: GP-70 and GP-14B, above 24 kV; GP-32B and
GP-15B, above 35 kV; GP-74B and GP-81B, above 60 kV.
9. Designed for high altitude, high holdoff conditions.
10. Other voltage ranges and mechanical configurations are available
on request; for example, the GP-20B can be supplied with a 6 to
16 kV operating range by specifying GP-20B-20. The 20 would be
the SBV and E-E maximum would be 80% of SBV = 16kV.
11. E = Stored energy in joules ( 1/2CV2), lb = average current in
amperes, lp = RMS current in amperes, R = total circuit resistance
in ohms, P = average power in watts.
PerkinElmer Optoelectronics
GP-89, GP-90, GP-91 AND GP-93
0.25
0.590
± 0.030
0.062 ± 0.020
0.250
0.050 DIA
THRU HOLE
0.062 ± 0.020
0.090 O.D. NOM
RED AND WHITE
TEFLON JACKET
19/34 TC CENTER
CONDUCTOR 10 ± 1 LONG
"T"
0.160
MAX
0.310
MAX
"A"
0.200
MAX
0.700
MAX
1.200
MAX
"O"
0.150 O.D. NOM
RED VINYL JACKET
7/30 TC CENTER
CONDUCTOR 10 ± 1 LONG
GP-20B, GP-31B, GP-46B, AND GP-82B
0.150
MAX
0.120 O.D. NOM
BLACK VINYL JACKET
7/30 TC CENTER
CONDUCTOR 10 ± 1 LONG
GP-70, GP-85, GP-86, AND GP-87
4 EQUALLY SPACED
MOUNTING HOLES
0.120 DIA
(EACH END)
1.330 DIA B.C.
1.310
CLEARANCE FOR A
NO. 8 SCREW
4 HOLES EACH END
ON A 2.575 B.C.
45°
A
MAX
1.187
1.550
TYPE
GP-20B,31B AND 82B
GP-46B
3.0 MAX
2.250
MAX
1.780
REF
90° ± 1°
3.0
MAX
DIA
1.600 DIA
MAX
"O"
"T"
"A"
"A"
1.020 DIA
MAX
"T"
10-32
UNF THD
0.187
0.312
0.185 DIA
0.215
"A"
"A"
2.000 ± 0.010 DIA
CERAMIC BODY
A
"O"
GP-12B, GP-14B, GP-15B, GP-22B, GP-30B,
GP-32B AND GP-41B
CLEARANCE FOR A
NO. 8 SCREW
6 HOLES EACH END
ON A 3.937 B.C.
GP-74B and GP-81B
A
3.000
± 0.050
DIA
60° TYP
CLEARANCE FOR A
NO. 8 SCREW
6 HOLES EACH END
ON A 3.937 B.C.
B
B
A
0.500 REF
60° TYP
"A"
"A"
4.250
± 0.025
DIA
4.250
±0.025
DIA
"T"
"T"
10-32
UNF THD
10-32
UNF THD
"O"
0.4 REF
GLAZED CERAMIC
TYPE
GP-12B, 14B, 22B AND 30B
GP-15B, 32B AND 41B
A
MAX
2.375
3.625
B
MAX
0.750
0.250
GLAZED CERAMIC
TYPE
GP-74B
GP-81B
“A” = ADJACENT ELECTRODE,
"A"
"O"
"A"
A
MAX
3.625
4.500
“O” = OPPOSITE ELECTRODE,
B
MAX
0.250
RECESSED
3.900
DIA MAX
MIN
CREEPAGE
PATH IN INCHES
4
6
“T” = TRIGGER PROBE
Note: Dimensions in inches
All data and specifications subject to change without notice.
PerkinElmer Optoelectronics
page 3
Triggered Spark Gaps Ceramic Metal
Environmental Specifications
Ambient temperature range
Operating temperature range
-54 to +100°C
Nonoperating temperature range
-65 to +125°C
Vibration
15 to 500 Hz at 10 g maximum
Shock
50 g, 11 milliseconds
Thermal Shock
-65 to +125°C
Electrical Specifications
Electrode capacity
Less than 5 pf.
Interelectrode resistance
Greater than 1010 ohms at 500 V.
Mechanical Specifications
Envelope
Ceramic-metal, hermetically sealed, exposed metal parts nickel plated.
Torque applied to studs
6 inch-pounds maximum.
Marking
PerkinElmer’s trademark, part designation, and date code.
PerkinElmer welcomes inquiries about special types. We would be pleased to discuss the requirements
of your application and the feasibility of designing a type specifically suited to your needs.
Our Quality and Environmental Policy
“Our goal is to supply our customers
the agreed quantity of specified products and services,
defect free and on time while conducting business
in an environmentally responsible manner”
* All values are nominal; specifications subject to change without notice.
To request additional information, receive a quote, or place an order, please contact PerkinElmer Optoelectronics at office listed below.
PerkinElmer Optoelectronics
35 Congress Street
Salem, MA 01970
Toll Free: (800) 950-3441 (USA)
Phone: (978) 745-3200
Fax: (978) 745-0894
PerkinElmer is a registered trademark of PerkinElmer, Inc.
www.perkinelmer.com/opto
Copyright © PerkinElmer
All rights reserved
Printed in U.S.A. 10/00
Similar pages