400 W, CW Helix TWT Series, 13.75 GHz to 14.5 GHz, Periodic-Permanent, Magnet
Focused, Coaxial Input, Waveguide Output, and Conduction Cooled.
Custom configurations are also available. These variations in the performance and
configuration include: mechanical configuration, electrical and RF connections, & dual
stage depressed collector.
Model Number
Frequency
(GHz)
Power Output
(Min.)
PICTURE
VTU-6395M1A
VTU-6395M7A
13.75 - 14.5
13.75 - 14.8
400 W
400 W
Operating Parameters
Heater
Features
400 Watts
Heater
Voltage Current
Parameters: Ef
Heater
Surge
Current
If
Helix
Voltage Voltage
Ew
Collector
Collector
Voltage
Eb2
Cathode
Current
Ik
•
•
•
•
•
•
If
Eb1
PPM Focusing
Coaxial Input
Waveguide Output
Any Mounting Position
Weight: 9 lbs. max (6.3 typical
2.6 kg)
(surge)
Units:
V
Adc
1.8
1.0
1.3
A
kVdc
9.0
8.2
kVdc
kVdc
mAdc
310
- - -
Maximum:
Minimum:
Typical:
6.5
6.1
6.3
5.0
- - -
<5.0
0.52 Ew
0.48 Ew
0.50 Ew
0.34 Ew
0.30 Ew
0.32 Ew
8.8
280
•
•
Conduction Cooled
Dual Stage Collector
Helix
Current Power
Drive
Cathode Load
Baseplate Collector 1 Collector 2
Warm-
Up Time
tk
VSWR
Temp.
Current
Current
Parameters:
Iw
Pd
Ib2
Ib1
Units:
mAdc
10
- - -
mW
50
- - -
1.0
minutes
- - -
3
°C
mA (dc)
175
- - -
mA (dc)
310
- - -
Maximum:
Minimum:
Typical:
1.5:1
- - -
1.2
120
- - -
85
<5.0
3
130
145
The values listed above represent specified limits for the product and are subject to change. The data should be used
for basic information only. Formal, controlled specifications may be obtained from CPI for use in equipment design.
For additional information on CPI MPP products contact:
CPI MPP, Helix TWT Operation - 811 Hansen Way, Palo Alto, CA 94303-0750
Phone: 650-846-3900, Fax: 650-494-8779, Email: marketing@mpp.cpii.com, www.cpii.com/mpp
