RoHS

POWER -NIKKOHM

HIGH VOLTAGE RESISTORS

UTFeatures and Applications
UT series to meet general set of requirements ultra high voltage and high energy at reasonable price.
UT presents a wide range of resistance value and tolerance.
Applications include electron microscope, X-ray analyzer, high power laser oscillator, MRI, plasma
generator, electrostatic coating.

Dimensions

BEDCA

Model

C (mm)D (mm)

E

UT20
2040
158+/-1.5
15+/-1.0
14+/-1.0
UT353530
110+/-1.5
33+/-0.5
31+/-1.0
UT505048
160+/-1.533+/-0.5
31+/-1.0
UT707065
210+/-1.5
33+/-0.5
31+/-1.0
UT100
100100310+/-1.5
33+/-0.5
31+/-1.0UT150
150
100
310+/-1.5
33+/-1.0
40+/-1.0
Cap style; ex. UT100-NC shows normal cap type, UT100-RC shows Corona Ring and Cap type.
Tera-ohm available on request.
Glass coating in standard, epoxy coating available.
The voltage limited by power.
Electrical specification on resistance value of 20kΩ - 1000MΩ only.

10+/-1.5
18+/-0.5
18+/-0.5
18+/-0.5
18+/-0.5
21+/-0.5

M4M6M6M6M6M6Model
UT20
UT35
UT50
UT70
UT100
UT150

Power (W)**MAX.
Operating
Voltage (kV)Single Impulse
Voltage 1.2/50us(kV)
275077100150150

A (mm)

Standard Resistance
Value (ohm)
1k - 1G
1k - 1G
1k - 1G
1k - 1G
1k - 1G
1k - 1G

B (mm)

Low Extended
Resistance Value(ohm)
20R - 0.9k
10R - 0.9k
10R - 0.9k
10R - 0.9k
10R - 0.9k
10R - 0.9k

High Extended
Resistance Value(ohm)
1.1G - 10T
1.1G - 10T
1.1G - 10T
1.1G - 10T
1.1G - 10T
1.1G - 10T

Dia. ofCoronaRing, RC(mm)N/A4343434356

Tolerance
1%, 5%, 10%1%, 5%, 10%1%, 5%, 10%1%, 5%, 10%1%, 5%, 10%

Nikkohm Co., Ltd. 3-31-2640 Minamicho, Misawa, Aomori 033-0036 Japan TEL: +81-176-53-2105, FAX: +81-176-53-2106© Nikkohm Co., Ltd.
URL: http://www.nikkohm.co.jp & http://www.nikkohm.com / e-mail: info@nikkohm.co.jp

RoHS

POWER -NIKKOHM
HIGH VOLTAGE RESISTORUTSpecifications
Specifications
1%, 5%, 10%+/-100 ppm/°C (A)Resistance Tolerance
TCR
Overload

Max. 0.50%

Thermal ShockLoad Life
Moisture Resistance
Insulation ResistanceTermination Cap MaterialMax. 0.50%
1.0% typicalMax. 0.50%
10 G Ohm minimum
Aluminum alloy, Bronz
Epoxy / Silicone Conformal /Glass

Encapsulation

Conditions
Reference +25 °C / -15 to -105 °C
5 times rated power with applied voltage not to exceed 1.5 times max.
continuous operating voltage for 5 seconds.
MIL STD 202, Method 107, condition C
Rated power, 1000hours
MIL STD202, Method 106--M4 / M6 Cap and Rug available

Ordering Information
TypeCapTCRResistanceTolerance
UT100-NCA
1G0F|||||
UT20NCA (+/-100ppm)
E12+F (1%)
UT35RCJ (5%)
UT50
K (10%)
UT70
UT100
UT150
(*) Recommend resistance value, when request for optional resistance please call factory.
1.0
1.2
1.5
1.8
2.2
2.5
2.7
3.3
3.9
4.7

CodeZ00
|
Z00

5.0

Note
|
bulk package

5.6

6.8

8.2

Derating
120%- Rated Power or Voltage

50°C

10080604020225°C

0-50-250255075
100 125 150 175
Ambient Temperature (°C)

200225250Applications
Automated Test (ATE), Medical (Imaging), Ion Source, Chromatography (Gas), Medical (PET, CT), Medical (Radiation Therapy),Military, Radar, Plasmas, Lasers, Measurements (High Voltage), Capacitor Charging, Microwave (Klystron), Medical (BloodAnalyzers), Corona Generators, Multichannel Analyzers, Ozone Generating, Detectors Nuclear, Gamma Cameras, ElectronBeam Testing, Surface Analysis, CRT, X-Ray , MRI, Electrophoresis, Image Intensifier, Surface Analysis, Piezo. Focusing(Poling), High Voltage Dividers, Stress Testing, Agricultural Sensors, Ion Beam, Arc Furnace Damping, High Voltage Snubbers,Pulse Forming Networks, Energy Research, EMI, Tube Arc Protection

20170401
Nikkohm Co., Ltd. 3-31-2640 Minamicho, Misawa, Aomori 033-0036 Japan TEL: +81-176-53-2105, FAX: +81-176-53-2106© Nikkohm Co., Ltd.
URL: http://www.nikkohm.co.jp & http://www.nikkohm.com / e-mail: info@nikkohm.co.jp