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
Resources
Published: 2025-07-24
| Updated: 2025-08-01
