Bourns PF2270 Riedon™ Power Resistors

Bourns PF2270 Riedon™ Power Resistors are engineered to meet the growing need for higher performance within size constraints, achieving high power capabilities and enhanced reliability. These chassis-mount resistors feature thick-film technology in a standard TO-227 package with a wide resistance value range from 0.1Ω to 100KΩ and resistance tolerances to ±1%. Compared to traditional wirewound power resistors, the PF2270 series offers significantly lower inductance (14nH) and a condensed form factor in the same power rating. The PF2270 resistors also provide superior pulse-handling capabilities compared to thin-film resistors. The compact design features high power dissipation, power ratings up to 300W, and moisture-resistant encapsulation. Bourns PF2270 Riedon Power Resistors are ideal for current limiting and measurement, capacitor recharge/discharge circuits, industrial motor drives, and power conversion applications.

Features

  • Formerly a Riedon product
  • Compact design with high power dissipation
  • Isolated backplate
  • Thick-film technology
  • Moisture-resistant encapsulation
  • Isolated backplate
  • Excellent pulse handling
  • M4 x 5mm screws included

Applications

  • AC/DC, DC/DC power converters
  • Battery energy storage systems (BESS)
  • Capacitor recharge/discharge circuits
  • Industrial power supplies, inverters, and motor drives
  • Current sensing

Specifications

  • 0.1Ω to 100KΩ resistance range
  • Power ratings to 300W
  • Resistance tolerances to ±1%
  • ±100ppm/°C TCR
  • 14nH inductance
  • Operating temperatures up to +175°C
  • TO-227 (TO-238) housing
  • RoHS compliant

Derating Curve

Performance Graph - Bourns PF2270 Riedon™ Power Resistors
Published: 2025-07-24 | Updated: 2025-08-01