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High Voltage Resistors Series 90, 100 and 200
Precision, Non-Inductive, Low TC
High Voltage Resistors Series 90, 100 and 200 combine proprietary non-
inductive resistance system and design to achieve low temperature
coefficient, low voltage coefficients, high stability and increased high
operating voltages.
C
L
Precision High Voltage Resistors Series 90, 100 and 200 are designed to
meet the demanding requirements of TWT power supplies, electron
microscopes, X-ray systems, high resolution CRT displays and
geophysical instruments. SMD Chip versions available on request.
Derating Curve
B
A
axial
Ø 0.8
L
25°C
100
RATED LOAD %
80
60
40
20
0
-50
0
50
100
150
200
R
radial
B
Ø 0.8
C
E
D
AMBIENT TEMPERATURE (°C)
Model
90.1
90.2
90.3
90.4
100.1
100.2
100.3
100.4
200.1
200.2
200.3
200.4
200.5
200.7
Wattage
0.80
1.00
1.50
2.00
1.00
1.30
2.00
3.00
1.00
2.00
3.00
4.50
6.50
9.00
Max.
Continuous
Oper. Voltage
7’000
11’000
20’000
30’000
7’000
11’000
20’000
30’000
5’000
11’000
20’000
30’000
45’000
60’000
Dimensions in millimeters
±
0.50
[Dimensions in inches
±
0.02]
L
B
20.32 [0.80]
25.40 [1.00]
38.10 [1.50]
50.80 [2.00]
20.32 [0.80]
25.40 [1.00]
38.10 [1.50]
50.80 [2.00]
12.70 [0.50]
25.40 [1.00]
38.10 [1.50]
50.80 [2.00]
76.20 [3.00]
101.60 [4.00]
3.81 [0.15]
3.81 [0.15]
3.81 [0.15]
5.08 [0.20]
5.08 [0.20]
5.08 [0.20]
5.08 [0.20]
6.35 [0.25]
5.08 [0.20]
7.62 [0.30]
12.70 [0.50]
15.24 [0.60]
15.24 [0.60]
15.24 [0.60]
C (max.)
10.00 [0.40]
10.00 [0.40]
10.00 [0.40]
10.00 [0.40]
35.00 [1.40]
35.00 [1.40]
35.00 [1.40]
35.00 [1.40]
10.00 [0.40]
35.00 [1.40]
35.00 [1.40]
35.00 [1.40]
35.00 [1.40]
35.00 [1.40]
D
17.78 [0.70]
22.86 [0.90]
35.56 [1.40]
48.26 [1.90]
17.78 [0.70]
22.86 [0.90]
35.56 [1.40]
48.26 [1.90]
10.16 [0.40]
22.86 [0.90]
35.56 [1.40]
48.26 [1.90]
73.66 [2.90]
99.06 [3.90]
E (max.)
2.00 [0.08]
2.00 [0.08]
2.00 [0.08]
2.00 [0.08]
2.50 [0.10]
2.50 [0.10]
2.50 [0.10]
2.50 [0.10]
2.00 [0.08]
2.50 [0.10]
2.50 [0.10]
2.50 [0.10]
3.00 [0.12]
3.00 [0.12]
Characteristics
Resistance Values
Tolerances
Temperature Coefficients
Operating Temperature
Insulation Resistance
Dielectric Strength
Thermal Shock
Overload
Moisture Resistance
Load Life
Encapsulation
Lead Material
from 1K to as high as 100G on all models (to 1T on request)
0.05%, 0.1%, 0.25%, 0.5%, 1%, 2%, 5%, 10% (0.05% available to 10G, 0.25% to 100G, other on request)
5, 10, 15, 25, 50 and 100 ppm/° (10 ppm/°C available to 10G, 25 ppm/° to 100G, other on request)
C
C
-55 .. +200°
C
(extended temperature range to 350° available)
C
> 10'000 M
500 Volt 25 °C 75% relative humidity
> 1'000 Volt
25 ° 75% relative humidity
C
R/R < 0.1% typ., 0.20% max.
MIL Std. 202, method 107 Cond. C
IEC 68 - 2 -14
R/R < 0.1% typ., 0.25% max.
1,5 x Pnom, 5 sec (do not exceed max. voltage)
R/R < 0.1% typ., 0.25% max.
MIL Std. 202, method 106
IEC 68 - 2 - 3
R/R < 0.1% typ., 0.25% max.
1000 hours at rated power
IEC 115 - 1
Screen Printed Silicone
Core Material
Al
2
O
3
(96%)
Tinned Copper / SMD versions available Resistor Material
Ruthenium Oxide
Voltage Coefficients of Resistance
Type
90.1
90.2
90.3
90.4
100.1
Resistance Range
1K .. 100M
100M .. 1G
1K .. 150M
150M .. 1.5G
1K .. 300M
300M .. 4G
1K .. 500M
500M .. 7G
1K .. 200M
200M .. 2.5G
VCR (- ppm/V)*
< 0.80
< 1.50
< 0.65
< 1.20
< 0.50
< 0.90
< 0.35
< 0.80
< 0.90
< 2.50
Type
100.2
100.3
100.4
200.1
200.2
Resistance Range
1K .. 250M
250M .. 3.5G
1K .. 400M
400M .. 5G
1K .. 600M
600M .. 10G
1K .. 250M
250M .. 3G
1K .. 500M
500M .. 7G
Version 5.04Cr
www.nicrom-electronic.com
VCR (- ppm/V)*
< 0.70
< 1.80
< 0.45
< 1.20
< 0.35
< 0.70
< 2.00
< 3.70
< 0.35
< 0.90
Type
200.3
200.4
200.5
200.7
Resistance Range
1K .. 1G
1G .. 10G
1K .. 1G
1G .. 20G
1K .. 1.5G
1.5G .. 30G
1K .. 2G
2G .. 40G
VCR (- ppm/V)*
< 0.20
< 0.40
< 0.10
< 0.30
< 0.07
< 0.20
< 0.05
< 0.15
* typical values, contact factory for details
© 2004 Nicrom Electronic
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Fax: ++41 91 682 99 86 Phone: ++41 91 682 67 01
info@nicrom-electronic.com
Specifications subject to changes without notice
1
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