Bourns Riedon PF2472 Power Resistors
Bourns Riedon PF2472 Power Resistors feature a high-stability film design with a broad resistance range and precise tolerance. These resistors, originally developed by Riedon, include a back plate that is isolated from both pins to ensure enhanced performance and reliability. The Riedon PF2472 power resistors are designed to operate within a temperature range from -55°C to +175°C and a maximum dielectric strength of 2500Vac. These components feature an operating voltage of 700V and maintain an insulation resistance greater than 1000MΩ. Typical applications include AC-DC and DC-DC power converters, Battery Energy Storage Systems (BESS), and capacitor recharge/discharge circuits.
Features
- Covers wide resistance range
- Ensures back plate isolated from both pins
- Maintains precise resistance tolerances
- Offers low inductance
- Originates as a Riedon™ product
- Provides excellent pulse handling
- Provides high stability film resistance elements
- RoHS compliant
Applications
- AC-DC and DC-DC power converters
- Battery Energy Storage Systems (BESS)
- Capacitor recharge/discharge circuits
- Current sensing
- Industrial power supplies, inverters, and motor drives
- Snubber circuits
Technical Specifications
| Parameters | Values |
|---|---|
| Maximum Dielectric Strength | 2500Vac |
| Inductance | 50nH |
| Insulation Resistance | >1000MΩ |
| Operating Temperature Range | -55°C to +175°C |
| Thermal Resistance | 1.3°C/W |
Video
This TTI Tech Specs video for Bourns Riedon PF2472 Power Resistors explains that they offer power ratings up to 100W in a TO-247 package. They have resistance tolerances down to ±1% and are carefully designed to ensure long-term, high-accuracy performance.
See video transcript below
Video Transcript
Electronics these days are all about tiny surface-mount parts that can handle a few milliwatts at most, but in high-power applications, you need stronger resistors. If there’s a gym for electronic components, Bourns PF2472 series high-powered resistors have been living in it. With resistances ranging from 0.1Ω to 20kΩ, the PF2472 Series offers power ratings up to 100W in a TO-247 package. They have resistance tolerances down to ±1% and are carefully designed to ensure long-term, high-accuracy performance. The PF2472 Series integrates an isolated thermal pad for safe use with heatsinks, offers a temperature coefficient of between 200 and 300ppm/°C, and an operating temperature range from -55°C to +175°C. With an ultra-low inductance of 50nH, an insulation resistance of well over 1000MΩ, and a dielectric strength of 2500V, the PF2472 Series can handle the toughest applications.
