WILLOW UT70

UT
Thicker Film Tubular type Non-Inductive
Resistors for Ultra High Voltage, High Energy
Ultra Voltage,High Frequncy Pulse,R & R-C Tank,High Energy.
UT series to meet general set of requirements Ultra high voltage high energt at reasonable prices.
And to be connection on M4, M6 . Corona Ring & Cap std. A wide range of R-Value & tolerance,
TCR available.
* Power Rating Able to build up Mega Jouls
Energy System.
* Various Models with Voltage Ratings upto
800kV in oil, 300kV at free air.
DIMENSIONS [mm]
Model Nr.
Wattage
Dimensions in millimeters
Max.
CotinuousOper.
V o l t [ k V ] **
L
B
D
Dia on
Corona Ring,
'RC' type
W
T
UT 20
20
40
158+/-1.5
14+/-1.0
15+/-1
N/A
10+/-1.5
M4
UT 35
35
30
110+/-1.5
31+/-1.0
33+/-0.5
43
18+/-0.5
M6
UT 50
50
48
160+/-1.5
31+/-1.0
33+/-0.5
43
18+/-0.5
M6
UT 70
70
65
210+/-1.5
31+/-1.0
33+/-0.5
43
18+/-0.5
M6
UT 100
100
100
310+/-1.5
31+/-1.0
33+/-0.5
43
18+/-0.5
M6
UT 150
150
100
310+/-1.5
40+/-1.0
45+/-1.0
59
21+/-0.5
M6
Cap style : ex) UT100 -nc ; normal cap type ,
* Terohm available on request
* Custom dimension, Terminations available
* Glass coat std. , epoxy coat available
* The Voltage Limited by Power
* Electrical Specification for 20kΩ ~ 1000MΩ only
** Vdc , Vac
UT100 -rc ; Corona Ring & Cap type
Single
Impulse
Voltage
1.2/50㎲
[kV]
Std. Rvlaue[Ω]
UT20
77
1K~1G
20R~0.9K
1.1G~10T
UT35
50
1K~1G
10R~0.9K
1.1G~10T
UT50
77
1K~1G
10R~0.9K
1.1G~10T
Model Nr.
Low Extended
R-value[Ω]
Hi Extended
R-value[Ω]
UT70
100
1K~1G
10R~0.9K
1.1G~10T
UT100
150
1K~1G
10R~0.9K
1.1G~10T
UT150
150
1K~1G
10R~0.9K
1.1G~10T
· Gamma Cameras
· Electron Beam Testing
· Ion Source
· Surface Analysis
· Chromatography (Gas)
· CRT, X-Ray , MRI
· Medical (PET, CT)
· Electrophoresis
· Medical (Radiation
Therapy)
· Image Intensifier
· Measurements (High
Voltage)
· Capacitor Charging
· Microwave (Klystron)
· Medical (Blood Analyzers)
· Corona Generators
· Multichannel Analyzers
· Ozone Generating
40
20
0
25
75125175 225
Ambient-Temperature (˚C)
SPECIFICATIONS
Thermal Shock :
Mil-Std-202, Method- 107,Cond. C,ΔR 0.50%
max.
· Piezo. Focusing (Poling)
· Plasmas ,Lasers
60
Overload :
5times rated power with applied voltage
not to exceed 1.5times Max. continuous
operating voltage for 5 seconds, overload/
overvoltage ΔR 0.50% max.
· Surface Analysis
· Military , Radar
80
Temperature Coefficient :
Std. 100ppm/ °C, referenced to 25°C, from
-15°C to +105°C, other TCR on requests.
APPLICATION GUIDE ; UT SERIES
· Medical (Imaging)
100
Resistance Tolerance :
1%,2%,5%,10%
* Electrical Specification for 20kΩ ~ 1000MΩ only
· Automated Test (ATE)
DERATING CURVE
Rated Power or Voltage%
UT
Thicker Film Tubular type Non-Inductive
Resistors for Ultra High Voltage, High Energy
· High Voltage Dividers
Load Life :
1.000 hours at rated power ΔR 1.0% typ.
Moisture Resistance:
Mil-Std-202, Method 106, ΔR 0.50%.
· Stress Testing
· Agricultural Sensors
Insulation Resistance :
10,000Megohms Min.
· Ion Beam
· Arc Furnace Damping
· High Voltage Snubbers
· Pulse Forming Networks
· Energy Research
Termination Cap of Material :
Aluminum Alloy , Bronz
M4 / M6 Cap, &Rug available
Encapsulation :
Epoxy /silicone confomal/ Glass /
· EMI
· Detectors Nuclear
· Tube Arc Protection
cf.: The described specifications & dimensions subject to change without notice.
Willow Technologies Ltd. Shawlands Court, Newchapel Road, Lingfield, Surrey, RH7 6BL, United Kingdom.
http://www.willow.co.uk
+ 44 (0) 1342 835234 + 44 (0) 1342 834306 [email protected]
designed by jonaldo
, France
rev.11/2005A