
E2V Technologies
FX2505
Hydrogen Thyratron
The data to be read in conjunction with the Hydrogen
Thyratron Preamble.
ABRIDGED DATA
Hydrogen-filled triode thyratron, positive grid, for pulse
operation. A hydrogen reservoir is incorporated. Electrically
superior to 4C35A.
Peak forward anode voltage .
Peak anode current
.
.
.
Average anode current
.
.
Anode heating factor .
.
.
Peak output power .
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 100
. 125
2.8 x 10
9
VApps max
.
0.5
10
kV max
A max
mA max
.
MW max
GENERAL
Electrical
Cathode (connected internally
to one end of heater)
.
.
.
.
.
.
.
.
oxide coated
6.3+ 5%
7
10%
6.1
. 3.0
Heater voltage
.
.
.
.
.
.
.
.
.
.
V
Heater current
Tube heating time (minimum)
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
A
min
Mechanical
Overall length
Overall diameter .
Net weight
Mounting position (see note 1) .
Base
.
.
.
Top cap
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
174.6 mm (6.875 inches) max
65.1 mm (2.562 inches) max
.
260 g (9 ounces) approx
.
.
.
.
.
.
.
.
.
. B4D, bayonet
.
.
.
.
.
.
.
.
.
.
.
.
any
.
.
.
.
.
.
.
.
.
.
.
.
BS 448-CT3
Cooling
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
natural
PULSE MODULATOR SERVICE
MAXIMUM AND MINIMUM RATINGS
(Absolute values)
Min
Max
Anode
Peak forward anode voltage
(see note 2)
Peak inverse anode voltage
(see note 3)
Peak anode current
Average anode current
Rate of rise of anode current
(see note 4)
Anode heating factor .
.
.
.
.
.
.
.
.
–
10
kV
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
–
–
–
10
100
125
kV
A
mA
.
.
.
.
.
.
.
.
.
.
.
.
.
–
–
1500
A/
m
s
VApps
2.8 x 10
9
Min
Max
Grid
Unloaded grid drive pulse voltage
(see note 5)
Grid pulse duration .
Rate of rise of grid pulse
(see note 4)
Peak inverse grid voltage .
Loaded grid bias voltage .
Forward impedance of
grid drive circuit .
.
.
.
.
.
.
.
.
.
.
.
.
175
–
–
V
.
2.0
m
s
.
.
.
.
.
.
.
.
.
.
.
.
.
160
–
V/
m
s
.
.
–
0
200
V
V
7
120
.
.
.
.
.
.
–
1500
O
Cathode
Heater voltage
.
.
.
.
.
.
.
.
6.3+ 5%
7
10%
3.0
V
Tube heating time .
.
.
.
.
.
.
–
min
Environmental
Ambient temperature .
Altitude
.
.
.
.
.
.
.
.
.
7
50
.
+90
8
C
km
.
.
.
.
–
–
3
10 000
ft
CHARACTERISTICS
Min Typical Max
Critical DC anode voltage for
conduction (see note 6)
Anode delay time
(see notes 6 and 7) .
Anode delay time drift
(see notes 6 and 8) .
Time jitter (see notes 6 and 9) .
Recovery time
Heater current (at 6.3 V) .
.
.
–
0.3
1.0
kV
.
.
.
–
0.35
0.6
m
s
.
.
.
–
–
0.03
3.0
0.1
5.0
m
s
ns
.
.
.
.
.
.
.
.
.
see note 10 and curves
6.1
5.5
6.7
A
#
E2V Technologies Limited 2002
A1A-FX2505 Issue 3, September 2002
527/5617
E2V Technologies Limited, Waterhouse Lane, Chelmsford, Essex CM1 2QU England
e-mail: enquiries@e2vtechnologies.com
Internet: www.e2vtechnologies.com
Telephone: +44 (0)1245 493493
Holding Company: Redwood 2002 Limited
Facsimile: +44 (0)1245 492492
E2V Technologies Inc. 4 Westchester Plaza, PO Box 1482, Elmsford, NY10523-1482 USA Telephone: (914) 592-6050
e-mail: enquiries@e2vtechnologies.us
Facsimile: (914) 592-5148