FX2505 Datasheet, PDF (1/3 Pages) List of Unclassifed Manufacturers – Hydrogen Thyratron

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 . . . . . . 10 kV max
Peak anode current . . . . . . . . 100
A max
Average anode current . . . . . . . 125 mA max
Anode heating factor . . . . . . 2.8 x 10⁹ VApps max
Peak output power . . . . . . . . . 0.5 MW max
GENERAL
Electrical
Cathode (connected internally
to one end of heater) . . . . . . . . oxide coated
Heater voltage . . . . . . . . . .
6.3
+
7
5%
10%
V
Heater current . . . . . . . . . . 6.1
A
Tube heating time (minimum) . . . . . . 3.0
min
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 . . . . . .
Min
175
. 2.0
160
.–
.0
.–
Max
–
–
–
200
7120
1500
V
ms
V/ms
V
V
O
Cathode
Heater voltage . . . . . . . .
6.3
+ 5%
710%
V
Tube heating time . . . . . . . 3.0
– min
Environmental
Ambient temperature . . . . . 750 +90
8C
Altitude . . . . . . . . . . –
3
km
– 10 000
ft
Mechanical
Overall length . . . . . 174.6 mm (6.875 inches) max
Overall diameter . . . . . . 65.1 mm (2.562 inches) max
Net weight . . . . . . . . 260 g (9 ounces) approx
Mounting position (see note 1) . . . . . . . . . any
Base . . . . . . . . . . . . . . B4D, bayonet
Top cap . . . . . . . . . . . . . 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
kV
–
100
A
–
125 mA
– 1500 A/ms
– 2.8 x 10⁹ VApps
CHARACTERISTICS
Min Typical Max
Critical DC anode voltage for
conduction (see note 6) . . –
0.3 1.0 kV
Anode delay time
(see notes 6 and 7) . . . . –
0.35 0.6 ms
Anode delay time drift
(see notes 6 and 8) . . . . –
0.03 0.1 ms
Time jitter (see notes 6 and 9) . –
3.0 5.0 ns
Recovery time . . . . . . . see note 10 and curves
Heater current (at 6.3 V) . . . 5.5 6.1 6.7 A
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-FX2505 Issue 3, September 2002
527/5617