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Bourns Releases High Heat Tolerant TO-227 Thick Film Resistor

2.7.2025
Reading Time: 2 mins read
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Bourns announces high heat tolerant thick film resistor series in a compact TO-227 package.

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

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Bourns Unveils New Robust Wide-Terminal Thick Film Resistors

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.

Features

  • Formerly a Riedon™ product
  • Resistances from 0.1 ohms to 100K ohms
  • Power rating to 300 watts
  • Resistance tolerances to ±1 %
  • TCR of ±100 ppm/°C
  • TO-227 (TO-238) housing
  • Isolated backplate
  • Moisture resistant encapsulation
  • M4x5mm screws included
  • Isolated back plate
  • Excellent pulse handling
  • RoHS compliant

Related

Source: Bourns

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