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BE Services, Inc., a subsidiary of Bourns, Inc., has purchased substantially all of Riedon's assets. See Press Release

High Pulse Resistors

UB Series

Miniature Silicone Coated Power Resistors

pdf
UB-3.jpg
  • High Power Rating in a Small Package
  • Excellent Pulse Handling (Read more here)
  • High Temperature: -55°C to +250°C
  • Resistance from 0.02 to 260K Ohms
  • Power Rating 1 to 15 Watts
  • Resistance Tolerances to ±0.1%
  • Low TCR: ±20ppm/K Standard
  • MIL-R-26/MIL-R-39007 Power Ratings
  • Non-Inductive Windings Available
Type Wattage Rating
(Watts)
Max Ohms2 Dimensions Max Working Voltage MIL-R-26/
MIL-R-39007 Style
A
±0.062"
[±1.6mm]
B3
±0.031"
[±0.8mm]
C1
±0.002"
[±0.05mm]
UB-1 1 3.4K 0.250[6.4] 0.085[2.2] 0.020 [0.5]
0.025 [0.6]
33 RW-81
RWR-81
UB-2 1.5 7.5K 0.312[7.9] 0.078[2.0] 0.020 [0.5]
0.025[0.6]
42 RWR-82
UB-3 2 10K 0.406[10.3] 0.094[2.4] 0.025 [0.6]
0.020 [0.5]
80 RW-80
RWR-80
UB-3C 3 12.5K 0.350[8.9] 0.156[4.0] 0.032 [0.8] 135
UB-5 4 25K 0.560[14.2] 0.187[4.7] 0.032 [0.8] 162
UB-5C 5 32K 0.500[12.7] 0.218[5.5] 0.040 [1.0] 194
UB-6 6 50K 0.625[15.9] 0.250[6.4] 0.040 [1.0] 258
UB-10 7 95K 0.875[22.2] 0.312[7.9] 0.040 [1.0] 425 RW-84
UB-12 10 150K 1.220[31.0] 0.312[7.9] 0.040 [1.0] 607
UB-15 15 260K 1.780[45.2] 0.375[9.5] 0.040 [1.0] 1050

1Lead Diameter: 18 AWG = 0.040" / 22 AWG = 0.025" / 24 AWG = 0.020"
Where more than one lead is listed / the top value is Standard
2For non-inductive windings / divide maximum resistance by 2

3For non-inductive winding where R ≤ 0.10 Ohms, Tolerance is +0.063/-0.00 [+1.6/-0.0 mm]

 

pdf See PDF Datasheet for Full Specifications

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