(626) 284-9901
[email protected]
Riedon.com
  • Home
  • Cross Reference
  • Technical Information
  • How To Buy
  • FAQs
  • Blog
  • Contact Us
(626) 284-9901 mobile menu link
  • Home
  • Cross Reference
  • Technical Information
  • How To Buy
  • FAQs
  • Contact Us
  • About Us
  • Custom Resistor
Our production facilities will be shut down Friday, December 24th, 2022, returning Monday, January 3rd, 2023.

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

Custom Resistors
Request Samples

Featured
Products



Download The Current Sense
& Circuit Protection
Brochure Here

Riedon
Brochure





Download Our Brochure

Technical
Calculator


Use this technical resource to learn about Ohm's Law, design RTDs, Voltage Dividers, Wheatstone Bridges and more.

Technical Calculator

Riedon
Guide to Resistors

[email protected]

Riedon
News

  • Purdue house runs entirely on DC power: efficient nano-grid can be powered by solar panels, batteries or local utilities
  • Your Essential Guide on How to Use DC Current Shunts
  • Do You Need a Shunt Resistor? What You Need to Know
  • What is a Pulse Resistor and How to Choose One
  • Current Sense Resistors - How They Work & Improve Efficiency



Copyright © 2023 Riedon

Follow Riedon on Twitter
Follow Riedon on YouTube
Follow Riedon on Facebook
Cross Reference |  Technical Information |   How To Buy |   Contact Us |   About Us |  Custom Designed Resistors |