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

Wirewound Silicone Coated High Temperature Resistors

UT Series - High Temperature

Silicone Coated Power Resistors

pdf
resistor
  • Resistance from 0.02 to 260K Ohms
  • Excellent Pulse Handling (Read more here)
  • High Temperature: -55°C to +350°C ("V" Rating)
  • Power Rating 0.1 to 13 Watts
  • Resistance Tolerances to ±0.01%
  • Low TCR: ±20ppm/K Standard
  • MIL-R-26 / MIL-R-39007 Power Ratings
  • Non-Inductive Windings Available
Specification Value
Tolerances ±0.01% to ±10% ( 1% Standard )
Temperature Coefficient >10Ω : ±20ppm/K
1Ω to 10Ω : ±50ppm/K
<1Ω : Call Factory
Temperature Range -55°C to +250°C : Characteristic U
-55°C to +350°C : Characteristic V
Dielectric Strength 500 VAC : UT-1 / UT-1/2A / UT-1/2 / UT-1A
1000 VAC : All Others
Construction Centerless ground ceramic core
Tinned copper or copperweld leads
High temperature / trivalent / inorganic Silicone coating
All welded terminations
Environmental Performance
(MIL-STD 202)
∆R
Characteristic U Characteristic V
Dielectric ±0.2% + 0.05Ω ±0.2% + 0.05Ω
Load Life ±1% + 0.05Ω ±3% + 0.05Ω
Storage ±0.2% + 0.05Ω ±2% + 0.05Ω
Moisture Resistance ±0.2% + 0.05Ω ±2% + 0.05Ω
Thermal Shock ±0.2% + 0.05Ω ±2% + 0.05Ω
5X Overload (5s) ±0.2% + 0.05Ω ±2% + 0.05Ω
Shock ±0.1% + 0.05Ω ±0.2% + 0.05Ω
Vibration ±0.1% + 0.05Ω ±0.2% + 0.05Ω

pdf See PDF Datasheet for Full Specifications

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