Bourns PWRx Wirewound Resistors

Bourns PWRx Wirewound Resistors are surface-mount resistors with a high power density and excellent pulse power characteristics. These power wirewound resistors feature a very high power of up to 10W with high reliability and surge capability. The PWR6927/8030/8937/A247/B053 resistors are used in a wide range of applications where surge voltages or inrush currents are present. These power wirewound resistors provide pulse-withstanding capability due to the very low TCR of ±20 PPM/°C for resistances over 10Ω. The PWR6927/8030/8937/A247/B053 resistors operate at a wide temperature range of -65°C to 175°C and comply with UL 94V-0, RoHS, and SVHC. Typical applications include high-power discharging devices, motor controls, telecommunications, and switching power supplies.                   

Features

  • Superior pulse capability
  • Up to 10W very high power
  • Excellent surge capabilities
  • Super low TCR
  • Non-inductive versions available
  • UL 94V0, RoHS, and SVHC compliant
  • Halogen-free model available

Applications

  • High-power discharging applications
  • Telecommunications
  • Switching power supplies
  • Motor controls
  • High pulse withstanding applications

Surge Performance (IEC 61000-4-5 1.2μs/50μs)

Performance Graph - Bourns PWRx Wirewound Resistors
Published: 2025-01-05 | Updated: 2025-06-18