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Wirewound Resistors

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Bourns offers a broad range of wirewound resistors with axial leaded through hole and surface mounted packages. These resistors are made by wrapped a high-performance resistive alloy wire around a low thermal resistance ceramic core. Wirewound resistors have superior pulse capability and available in non-inductive styles as well.

W, WS and FW series axial leaded through hole wirewound resistors are coated by UL 94V-0 compliant material.

FW series axial fusible resistor is UL1412 recognized and offers an integrated solution as it provides both inrush current protection and fusible overcurrent protection.

PWR series resistors covered by epoxy molded encapsulation which provides environmental protection for the resistive wire. And due to their wraparound terminations, they are suitable for surface mounting technology.   

 

Characteristics
  W, WS, FW PWR
Terminal Style Axial leaded, through hole Wraparound SMD
Sizes 9.5 x 4 to 52.5 x 8.5 (mm) 2010 to 5322 (inches)
Rated Power at 70®C 1 to 7 W 0.5 to 3 W
Resistance Range 0.01 ohms to 15 kiloohms 0.01 ohms to 15 kiloohms
Resistance Tolerance ±5 % 0.5 %, ±1 %, ±5 %
Temperature Coefficient ±200, ±300 ppm/°C ±20 to ±150 ppm/°C
Operating Temperature Range –55 to +155/200 °C –55 to +155/275 °C
 

Available features

  • High power rating
  • Superior pulse capability
  • Non-inductive version
  • UL1412 recognised fusible
  • Customized parts (surge capability, lead form)
  • Coating material meets UL 94V-0 requirements
  • RoHS compliant*
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.

Applications

  • Telecommunication Base stations
  • Audio equipment
  • Medical equipment
  • Industrial equipment
  • Smart meters
  • Renewable energy
  • Industrial
  • Power supplies/chargers
  • Lighting
  • Instruments/gauges
  • White goods
Series Data Sheet Photo Resistance Range Tolerances Temperature Coefficient Power (Watts) Profile/Package Style Related Documents Design Files Buy Now
FW Series Fusible FW Series Fusible FW_part 4.7 to 100 ohms 5 % ±200 ppm 1, 2, 3, 5, 7 W Through-hole Axial Wirewound FW Series
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W Series W Series W_photo 15 to 150 ohms 5 % ±300 ppm 1-10 W Through-hole Axial Wirewound W Series
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WS Series Surge Withstand WS Series Surge Withstand WS_part 15 ohms to 3.3 kilohms 5 % ±200 ppm 1-8 W Through-hole Axial Wirewound WS Series
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PWR1913 PWR1913_part 0.01-400 ohms 1 %, 5 % ±20 to ±150 ppm 0.5 W Surface Mount Wirewound Buy
PWR2010 PWR2010 PWR2010_part 0.1-1K ohms 0.5 %,1 %, 5 % ±20 to ±90 ppm 0.5 W Surface Mount Wirewound PWR2010
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PWR2615 PWR2615 pwr4525_part 0.01-3k ohms 1 %, 5 % ±20 to ±150 ppm 1 W Surface Mount Wirewound PWR2615
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PWR3014 PWR3014 PWR2010_part 0.1-4K ohms 0.5 %,1 %, 5 % ±20 to ±90 ppm 1 W Surface Mount Wirewound PWR3014W
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PWR4318 PWR4318 PWR2010_part 0.1-8K ohms 0.5 %,1 %, 5 % ±20 to ±90 ppm 2 W Surface Mount Wirewound PWR4318W
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PWR4525 PWR4525 pwr4525_part 0.01-15k ohms 1 %, 5 % ±20 to ±150 ppm 2 W Surface Mount Wirewound PWR4525
Downloads Buy
PWR5322 PWR5322 PWR2010_part 0.1-15K ohms 0.5 %,1 %, 5 % ±20 to ±90 ppm 3 W Surface Mount Wirewound PWR5322W
Downloads Buy
PWR6327 PWR1913_part 0.01-25k ohms 1 %, 5 % ±20 to ±150 ppm 3 W Surface Mount Wirewound Buy

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