CX1157 Datasheet, PDF (1/5 Pages) List of Unclassifed Manufacturers – Hydrogen-Filled Ceramic Thyratron

E2V Technologies
CX1157 (Service Type CV6241)
Hydrogen-Filled Ceramic Thyratron
The data to be read in conjunction with the Hydrogen
Thyratron Preamble.
ABRIDGED DATA
Hydrogen-filled tetrode thyratron with ceramic envelope,
featuring low jitter and low anode delay time drift. Suitable for
use at high pulse repetition rates and in applications requiring
ruggedness and compactness. A hydrogen reservoir operating
from the heater supply is incorporated.
Peak forward anode voltage . . . . . . 20 kV max
Peak anode current . . . . . . . . 350
A max
Average anode current . . . . . . . 500 mA max
Anode heating factor . . . . . . 7.0 x 10⁹ VApps max
Peak output power . . . . . . . . . 3.5 MW max
GENERAL
Electrical
Cathode (connected internally to
one end of heater) . . . . . .
Cathode heater voltage . . . . .
Cathode heater current . . . . .
Reservoir heater voltage (see note 1) .
Reservoir heater current . . . . .
Tube heating time (minimum) . . .
. . . oxide coated
6.3 + 7 ¹/₂%
V
. . 7.5
A
6.3 + 7 ¹/₂%
V
. . 1.5
A
. . 3.0
min
Mechanical
Seated height . . . . . . 76.2 mm (3.000 inches) max
Clearance required below
mounting flange . . . . . 31.75 mm (1.250 inches) min
Overall diameter
(mounting flange) . . . 57.15 mm (2.250 inches) nom
Net weight . . . . . . . . 284 g (10 ounces) approx
Mounting position (see note 2) . . . . . . . . . any
Tube connections . . . . . . . . . . . see outline
Cooling . . . . . . . . natural, forced-air or liquid
Where natural cooling is insufficient to maintain the envelope
temperatures below the specified rated values, cooling by
forced-air, or by oil or coolant immersion may be used.
The temperature of the anode terminal and the base, measured
at the points indicated on the outline drawing, must not exceed
the values specified below.
Anode terminal . . . . . . . . . . 250
Base . . . . . . . . . . . . . 220
8C max
8C max
PULSE MODULATOR SERVICE
MAXIMUM AND MINIMUM RATINGS
(Absolute values)
Min Max
Anode
Peak forward anode voltage
(see note 3) . . . . . . . . . –
20 kV
Peak inverse anode voltage
(see note 4) . . . . . . . . . –
20 kV
Peak anode current . . . . . . . –
350
A
Average anode current . . . . . . –
500 mA
Rate of rise of anode current
(see notes 5 and 6) . . . . . . . – 2500 A/ms
Anode heating factor . . . . . . . – 7.0 x 10⁹ VApps
Grid 2
Unloaded grid 2 drive pulse voltage
(see note 7) . . . . . . . . 200
Grid 2 pulse duration . . . . . . . 1.0
Rate of rise of grid 2 pulse (see note 6) . 1.0
Grid 2 pulse delay . . . . . . . . 0.5
Peak inverse grid 2 voltage . . . . . –
Loaded grid 2 bias voltage
(see note 8) . . . . . . . 750
Forward impedance of
grid 2 drive circuit . . . . . . 100
750
V
– ms
– kV/ms
3.0 ms
200
V
7200
V
1000
O
Grid 1 – DC Primed (See note 9)
DC grid 1 unloaded priming voltage . 75
DC grid 1 priming current . . . . 50
150
V
150 mA
Grid 1 – Pulsed (See note 10)
Unloaded grid 1 drive pulse voltage
(see note 7) . . . . . . . . 300
Grid 1 pulse duration . . . . . . . 2.0
Rate of rise of grid 1 pulse (see note 6) . 1.0
Peak inverse grid 1 voltage . . . . . –
Loaded grid 1 bias voltage . . . . . . .
Peak grid 1 drive current . . . . . . 0.15
750
V
– ms
– kV/ms
200
V
see note 11
0.5 A
Cathode
Heater voltage . . . . . . . . . 6.3 + 7 ¹/₂% V
Heating time . . . . . . . . . . 3.0
– min
Reservoir
Heater voltage (see note 1) . . . . . 6.3 + 7 ¹/₂% V
Heating time . . . . . . . . . . 3.0
– min
Environmental (See note 12)
Ambient temperature . . . . . 755 +130 8C
Altitude . . . . . . . . . . . –
3 km
– 10 000
ft
E2V Technologies Limited, Waterhouse Lane, Chelmsford, Essex CM1 2QU England Telephone: [phone] Facsimile: [phone]
e-mail: [e-mail] Internet: www.e2vtechnologies.com Holding Company: Redwood 2002 Limited
E2V Technologies Inc. 4 Westchester Plaza, PO Box 1482, Elmsford, NY10523-1482 USA Telephone: [phone] Facsimile: [phone]
e-mail: [e-mail]
#E2V Technologies Limited 2002
A1A-CX1157 Issue 3, September 2002
527/5626