OHMITE 89 Aluminum Housed Wirewound Resistors

OHMITE 89 Aluminum Housed Wirewound Resistors are designed for reliable operation in demanding environments. These molded construction resistors offer a high power to size ratio, exceptional stability, and resistance to vibration and mechanical shock. The 89 aluminum resistors have a maximum operating temperature range from -55°C to +250°C and a maximum power rating of 50W. Typical applications include power conversion systems, defense electronics, and transportation systems.

Features

  • Aluminum housing
  • Chassis mountable
  • Heat sink capable
  • High power density
  • High stability
  • RoHS compliant

Applications

  • Aerospace and defense electronics
  • Industrial automation equipment
  • Motor drives and controls
  • Power conversion systems
  • Power distribution equipment
  • Railway and transportation systems
  • Test and measurement equipment
  • UPS and power supply systems

Technical Specifications    

Parameters Values
Operating Temperature Range -55°C to +250°C
Dielectric Withstanding Voltage 1000VAC (5W, 10W) and 2250VAC (25W, 50W)
Tolerance ±1% and ±5%
Maximum Power Rating 50W