TT Electronics ULW Wirewound Resistors

TT Electronics ULW Wirewound Resistors provide fusible protection for circuits exposed to overload, inrush, and surge conditions. These resistors feature a ceramic rod, wirewound element, welded terminations, and flameproof fusible cement coating. The ULW series operates over a temperature range from -55°C to +200°C and offers power ratings from 2W to 5W at 25°C. These resistors have UL1412 recognition and UL94-V0 flameproof construction. Applications include white goods and main inrush limiting.

Features

  • cRUus certification
  • Inrush and surge condition resistance
  • UL1412 recognized fusible resistor construction
  • UL94-V0 flame resistant coating
  • ZI-formed leads for surface mount assembly

Applications

  • LED lighting application
  • Main inrush limiting
  • Transient overvoltage protection
  • White goods

Technical Specifications

Parameters Values
Isolation Voltage 250V, 350V, and 500V
Operating Temperature Range -55°C to +200°C
Resistance Range 1R0Ω to 100RΩ
Resistance Tolerance ±5%
Temperature Coefficient of Resistance (TCR) ±200ppm/°C