Bourns Announces High Heat Tolerant Thick Film Resistor Series in a Compact TO-227 Package

The Riedon™ PF2270 Series
Power Film Resistors by
Bourns® (Click to enlarge)

The PF2270 Series power film resistors provide superior power dissipation and thermal efficiency for motor drives, power conversion and battery energy storage systems

RIVERSIDE, Calif., July 1, 2025 - Bourns, Inc., a leading manufacturer and supplier of electronic components for power, protection, and sensing solutions, today announced a new thick film resistor series that delivers high heat tolerance in a compact TO-227 package. The Riedon™ PF2270 Series Power Film Resistors by Bourns® are engineered to provide superior power dissipation based on their thick film technology design and excellent pulse handling capabilities that offer up to 300 W of power dissipation with heatsink. The low-inductance design and high-power dissipation ratings make these power film resistors ideal solutions for industrial motor drives, power conversion, battery energy storage systems and other high-performance electronic designs.

In addition to the series’ advanced TO-227 packaging enabling operating temperatures up to +175 °C, it also offers a wide resistance value range from 100 milliohms (mΩ) to 100 kiloohms (KΩ), and resistance tolerance options of 1 percent and 5 percent. These features deliver excellent current limiting, precise current measurement and superior capacitor discharge capabilities that benefit applications where high power density support and increased reliability are needed.

The Riedon™ PF2270 Series Power Film Resistors by Bourns® are available now through Bourns’ authorized distribution partners, and are RoHS* compliant. For more detailed product information, please see: /bourns.com/products/resistors/high-power-resistors.

*RoHS Directive 2015/863, Mar 31, 2015 and Annex.