Ultra-Mox Series

Ultra-Mox Series
High Voltage, Thick Film
F e at u r e s
•High voltage resistors in thick film technology
•Radial leads, variable lead spacing by bending
•Climatic protection by silicone coating
•Special versions possible
•Resistance values up to 10 teraohm
•Low values of TCR and VCR
S e r i e s s p e c i f i c at i o n s
Series Power Rating Working Voltage Resistance Range
UM025
1.0
15KV
1M-100M
>100M-1G
>1G-100G
>100G-1T
UM030
1.0
10KV
1M-100M
>100M-1G
>1G-100G
>100G-1T
UM040
1.2
20KV
1M-100M
>100M-1G
>1G-100G
>100G-1T
UM050
3.0
30KV
1M-100M
>100M-1G
>1G-100G
>100G-1T
>1T-10T
Tolerance
0.25-10%
1-20%
5-30%
5-30%
0.25-10%
1-20%
5-30%
5-30%
0.25-10%
1-20%
5-30%
5-30%
0.25-10%
1-20%
5-30%
5-30%
10-30%
TCR
VCR
25, 50, 100
1ppm/V
50, 100, 250 2ppm/V
250, 500
10ppm/V
500, 1000
50ppm/V
25, 50, 100
2ppm/V
50, 100, 250 5ppm/V
250, 500
20ppm/V
500, 1000 100ppm/V
25, 50, 100
1ppm/V
50, 100, 250 2ppm/V
250, 500
10ppm/V
500, 1000
50ppm/V
25, 50, 100
1ppm/V
25, 50, 100
1ppm/V
100, 250
5ppm/V
250, 500
25ppm/V
on request
Closer tolerance, TCR and VCR, other dimensions, and voltage dividers, on request.
Characteristics
Continuous operating voltage V=√(P*R)
Measuring voltage Standard measuring voltage is 10V (50V for values >1G).
Different voltages on request.
TCR in ppm/K; Temperature range +25°C ... +125°C;
TCR25/50 and values above 1G: +25°C ... +85°C
Operating temp. range -55°C ... +125°C
Climatic category to EN 60068-1: 55/125/56
Humidity-/contact protection Lacquer coating. Resistant to most solvents. Isopropyl
alcohol recommended for cleaning; do not use acetone
or methylene choloride. Avoid mechanical stress to coating.
Stability: Storage (125°C/1000h) ≤10G: <1%; >10G: <2%
Stability at Max. voltage (Max. voltage/1000h) ≤10G: <1%; >10G: <2%
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1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected]
Ultra-Mox Series
High Voltage, Thick Film
Dimensions
(in. / mm ±0.5)
0.06"
1.6mm
L
Series
UM025
B
0.79"
20mm -2/+0
R
L
B
R
0.98"/25.0 0.35"/9.0 0.90"/22.9
Lead spacing may be changed by bending
1.57"/40.0 0.24"/6.0 1.49"/37.8
Axial versions, versions with formed leads and versions
with lead frames are available
UM030
1.18"/30.0 0.24"/6.0 1.09"/27.7
UM050
1.97"/50.0 0.49"/12.5 1.88"/47.8
UM040
Other wire diameters and thicknesses available
0.024"
0.60mm ±.05
OR D ERIN G IN F OR M ATION
RoHS Compliant
UM050T1004JE
Ultra-mox
TCR
Style
High voltage
(ppm)
radial lead
W = 25
V = 50
T = 100
Z = 250
E = 500
N = 1000
U = 2000
Ohms
1004 = 1MΩ
1006 = 100M
1009 = 100G
100A = 1T
100B = 10T
Tolerance
D =0.50%
F = 1%
G = 2%
J = 5%
K = 10%
M = 20%
P = 30%
Standard Part Numbers
UM030T1006FE UM040Z1009JE
UM030Z1007FE UM040E100AJE
UM030Z1008JE
UM030Z1009JE
UM050V1006FE
UM050V1007FE
UM030E100AJE UM050T1008JE
UM040T1006FE UM050T1009JE
UM040Z1007FE UM050Z100AJE
UM040Z1008JE
UM050E100BKE
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected]
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