UB Series
Powertron
•ꢀ Resistances from 0.005 to 260kOhms
•ꢀ Power Rating 1 to 18Watts
•ꢀ Resistance Tolerances to ± 0.01%
•ꢀ Low TCR: ± 20ppm/K Standard
•ꢀ MIL-R-26 / MIL-R-39007 Power Ratings
•ꢀ Temperature Range: -55°C to +350°C ( “V” Rating )
•ꢀ Non-Inductive Windings Available
SPECIFICATIONS
Wattage Rating
( Watts )
Dimensions
MIL-R-26 /
Maximum
Maximum
Ohms 2
MIL-
R-39007
Style
Working
Voltage
Type
A
B
C1
±0.062”
[±1.6mm]
±0.031”
[±0.8mm]
±0.002”
[±0.05mm]
U
V
0.020 [0.5]
0.025 [0.6]
RW-81
RWR-81
UB-1
UB-23
UB-3
1
1.5
2
1.5
2
3.4k
7.5k
10k
0.250 [6.4]
0.312 [7.9]
0.406 [10.3]
0.085 [2.2]
0.078 [2.0]
0.094 [2.4]
33
42
80
0.020 [0.5]
0.025 [0.6]
RWR-82
0.025 [0.6]
0.020 [0.5]
RW-80
RWR-80
3
0.032 [0.8]
0.032 [0.8]
0.040 [1.0]
0.040 [1.0]
0.040 [1.0]
UB-5
UB-5C
UB-6
4
5
5
7
25k
32k
0.560 [14.2]
0.500 [12.7]
0.625 [15.9]
0.875 [22.2]
1.220 [31.0]
0.187 [4.7]
0.218 [5.5]
0.250 [6.4]
0.312 [7.9]
0.312 [7.9]
162
194
258
425
607
6
8
50k
RW-84
UB-10
UB-12
7
10
12
95k
10
150k
0.040 [1.0]
UB-15
15
18
260k
1.780 [45.2]
0.375 [9.5]
1050
1
Lead Diameter: 18 AWG = 0.040” / 20 AWG = 0.032” / 22 AWG = 0.025” / 24 AWG = 0.020”
Where more than one lead is listed / the top value is Standard
For non-inductive windings / divide maximum resistance by 2
2
3
This part does not meet the RoHS directive - call factory for details
Ordering Information
For Non-Inductive Windings / insert the letter “N” ( i.e. UBN-5 )
Part Number - Resistance - Tolerance - TCR ( If not standard )
Example: UB-3 10 Ohm 1%
Document Number: 64326
Revision: 20-09-10
For technical questions, contact: powertron@vishaypg.com
www.powertron.de
1