Ohmite WH/WN Miniature Molded Wirewound Resistors

Ohmite WH/WN Miniature Molded Wirewound Resistors feature a resistance range of 0.10kΩ to 50KΩ, an epoxy molding compound encapsulation, and are designed to meet MIL-R-26F and MIL-STD-202 standard requirements. The WH components are the precision series while the WN devices are the Aryton Perry Winding Non-Inductive series with a <1nH inductance at 1MHz. These resistors are ideal for precision applications where costs are sensitive, such as office and lab environments.

Features

  • Available types
    • WH precision series
    • WN Aryton Perry Winding Non-Inductive series with a <1nH inductance at 1MHz
  • Encapsulated by an epoxy molding compound
  • Advanced IC encapsulation mold/die technologies
  • Wire winding/spot welding manufacturing process by Computer Numerical Control (CNC) machine tools to ensure consistency of product quality
  • Designed to meet MIL-R-26F and MIL-STD-202 standard requirements
  • RoHS compliant

Applications

  • Cost-sensitive precision applications
    • Office
    • Laboratory

Specifications

  • 0.5W, 1W, 2W, 3W, and 5W power rating options
  • 0.10kΩ to 50KΩ resistance range
  • 0.5%, 1.0%, or 5.0% tolerances
  • -55°C to +150°C operating temperature range
  • Temperature coefficients
    • ±90ppm/°C for 0.100Ω to 0.99Ω range
    • ±50ppm/°C for 1.00Ω to 10.00Ω range
    • ±20ppm/°C for >10.00Ω
  • Materials
    • CeramTec Rubalit® 85% alumina ceramic core
    • Stainless steel end caps, precision formed
    • Copper wire leads, 100% Sn (lead-free) coated
    • ISAOHM® resistance wire TC ±20ppm/°C
    • SUMICON 1100/1200 epoxy molding compound IC encapsulation
Publicado: 2012-05-03 | Actualizado: 2024-04-11