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High Power Resistors

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pwr263_internal_construction_diagram
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Bourns offers a broad range of PWR-series high power thick film resistors with standard packages, surface mounted TO-163 and TO-263 (DPAK and D2PAK) and radial leaded through hole TO-220 and TO-247. These compact packages which are used as standard by semiconductor manufacturers offers space savings to designers and various additional standardized off-the-shelf accessories are available on the market such as thermal and mounting devices.

 

Characteristics
Packages DPAK, D2PAK, TO-220, TO-247
Rated Power
(at 25 °C case temperature, mounted on heat sink)
20 to 100 W1
Resistance Range 0.02 ohms to 1 megohm
Resistance Tolerance 1 %, ±5 %
Temperature Coefficient ±100, ±200, ±600 ppm/°C
Operating Temperature Range –55 to +155/175 °C
(1) Power rating of 2 to 3.5 W at free air (without heat sink)
 

Available features

  • High power rating
  • Low inductance
  • Resistor electrically isolated from the backplate
  • Suitable for most types of soldering processes
  • RoHS compliant*
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.

Applications

  • Power supplies
  • Motor drives
  • Test and measurement
  • Rectifiers
  • Capacitor discharging
  • Snubber circuits
  • Current limiting
  • Heater
Series Data Sheet Photo Tolerances Temperature Coefficient Power per Resistor Package Profile/Package Style Physical Configuration Material Resistance Range (Ohms) Related Documents Design Files Buy Now
PWR163 PWR163 PWR163_part 1 %, 5 % ±100 ppm 25 W DPAK 8.13 x 12.29 x 2.79 mm Surface Mount Thick Film 0.02-130K PWR163
Available Downloads Buy
PWR263S-20 PWR263S-20 PWR263_part 1 %, 5 % ±100 ppm 20 W D2PAK 10.1 x 14.39 x 4.5 mm Surface Mount Thick Film 0.02-130K PWR263S-20
Available Downloads Buy
PWR263S-35 PWR263S-35 PWR263S-35_part 1 %, 5 % ±100 ppm 35 W D2PAK 15.39 x 10.1 x 4.5 mm Surface Mount Thick Film 0.02 to 130K PWR263S-35
Available Downloads Buy
PWR220T-20 PWR220T-20 PWR220T_part 1 %, 5 % ±100 ppm 20 W TO-220 10.1 x 14.63 x 4.5 mm Radial Through-hole Thick Film 0.5 to 130K PWR220T-20
Available Downloads Buy
PWR220T-35 PWR220T-35 PWR220T-35_part 1 %, 5 % ±100 ppm 35 W TO-220 14.6 x 10.1 x 4 mm Radial Through-hole Thick Film 0.02 to 130K PWR220T-35
Available Downloads Buy
PWR221T-30 PWR221T-30 PWR221T-30_part 1 %, 5 % ±100 ppm 30 W TO-220 10.41 x 16.26 mm Through-Hole Thick Film 0.02 to 130K PWR221T-30
Available Downloads Buy
PWR221T-50 PWR221T-50 PWR221T-50_part 1 %, 5 % ±100/±300/±600 ppm 50 W TO-220 10.41 x 16.26 x 3.18 mm Radial Through-Hole Thick Film 0.02 to 130K PWR221T-50
Available Downloads Buy
PWR247T-100 PWR247T-100 PWR247T-100_part 1 %, 5 % ±100 /±200/±600 ppm 100 W TO-247 15.75 x 20.7 x 4.95 mm Radial Through-hole Thick Film 0.05 to 1M PWR247T-100
Available Downloads Buy
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