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UT
ULTRA HIGH
VOLTAGE RESISTOR

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Features
• The UT series meets a general set of requirements for ultra
   high voltage and high energy applications at a low price.
• Connection on M4, M6. Corona Ring & Cap Srd.
• A wide range of resistances, tolerances and TCRs.
• Power rating able to build up mega joule energy systems.
• Models with voltage ratings up to 800KV in oil or free air.
• Can handle high frequency Pulses.
• Can handle high energy applications.

GENERAL SPECIFICATIONS

Model

Wattage
[W]

Max.
Continuous
Oper. Volt
[kW]

Single Impulse Voltage 1.2/50s
[kV]

Std.
R-value[]

Low
Extended
R-value[]

Hi Extended
R-value[]

UT20

20

40

77

1K-1G

20-0.9K

1.1G-10T

UT35

35

30

50

1K-1G

10-0.9K

1.1G-10T

UT50

50

48

77

1K-1G

10-0.9K

1.1G-10T

UT70

70

65

100

1K-1G

10-0.9K

1.1G-10T

UT100

100

100

150

1K-1G

10-0.9K

1.1G-10T

UT150

150

100

150

1K-1G

10-0.9K

1.1G-10T

CHARACTERISTICS                                                  Values in [ ] mean change in ohmic value after test

Resistance Tolerance

 

1%, 2%, 5%, 10%

Temp. Coefficient

 

Std. 100ppm/

Short Time Overload

R0.5% Max.

5 X Power rating 5sec.

Thermal Shock

R0.5% Max.

Mil-std-202, Method 107, Cond. C

Load Life

R1.0%

1000hours at rated power

Moisture Resistance

R0.5%

Mil-std-202, Method 106

Insulation Resistance

 

10G Min.

DERATING CURVE

DIMENSIONS

Model

Dimensions

L

B

D

Diameter on
Corona Ring
RC type

W

T

UT20

1581.5

141.0

151

N/A

101.5

M4

UT35

1101.5

311.0

330.5

43

180.5

M6

UT50

1601.5

311.0

330.5

43

180.5

M6

UT70

2101.5

311.0

330.5

43

180.5

M6

UT100

3101.5

311.0

330.5

43

180.5

M6

UT150

3101.5

401.0

451.0

59

210.5

M6

APPLICATIONS

•Automated Test(ATE)

•Corona Generators

•High Voltage Dividers

•Medical(Imaging)

•Multi channel Analysers

•Stress Testing

•Ion Source

•Ozone Generating

•Agricultural Sensors

•Chromatography(Gas)

•Detectors Nuclear

•Ion Beam

•Medical(PET, CT)

•Gamma Cameras

•Arc Furnace Damping

•Medical(Radiation Therapy)

•Electron Beam Testing

•High Voltage Snubbers

•Military, Radar

•Surface Analysis

•Pulse Forming Networks

•Plasmas, Lasers

•CRT, X-Ray, MRI

•Energy Research

•Measurements(High Voltage)

•Electrophoresis

•EMI

•Capacitor Charging

•Image Intensifier

•Tube Arc Protection

•Microwave(Klystron)

•Surface Analysis

 

•Medical(Blood Analysers)

•Piezo. Focusing(Poling)

 

Copyright©, RARA Electronics Corporation
Tel:82-32-817-4325 Fax:82-32-817-4329

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