Caddock MP825 Series

Caddock MP825 Series

The MP825 Kool-Pak® power film resistors from Caddock include an integral metal mounting surface for highly efficient thermal transfer. The resistance range is from 0.02Ω up to 10KΩ with a power rating of up to 25W at +25°C case temperature derated to zero at +150°C. The MP825 series tolerance is ±1.0% as standard (±0.5%, ±2.0%, ±5.0%, ±10.0% and ±20.0% are available for most resistance values). Caddock MP825 Kool-Pak® Power Film Resistors are constructed with Caddock's Micronox® resistance film fired onto a flat ceramic substrate. The ceramic substrate is bonded to a copper heat sink which becomes the metal mounting surface. This assembly is moulded with the copper heat sink flush with the back surface of the part. The terminal attachment and resistance element geometry are configured to provide outstanding non-inductive performance.

  • Kool-Pak® power film through-hole resistor
  • Resistance values available between 0.02Ω and 10KΩ
  • Copper heat sink integral in the moulded package
  • Non-inductive design
  • TCR of 0 to +300 ppm/°C (between 0.02Ω and 0.049Ω), 0 to +200 ppm/°C (between 0.05Ω and 0.49Ω), -20 to +80 ppm/°C (from 0.5Ω up to 4.99Ω) and -20 to +50 ppm/°C (from 5Ω and above)
  • Tolerance of ±1.0% as standard from 0.05Ω and above and ±5.0% from 0.02Ω up to 0.04Ω (±0.5%, ±2.0%, ±5.0%, ±10.0% and ±20.0% are available for most resistance values)
  • Power rating of up to 25W at +25°C case temperature derated to zero at +150°C
  • Resistor element is electrically isolated from the mounting surface

Use your thermal design experience with power semiconductors in TO-126 style power packages to help you get the most out of this unique family of power resistors. The thermal design issues are the same where power handling capability is based on the case temperature which is maintained in your design.

The below table gives the specifications available for the complete MP800 resistor series including the MP825:

Caddock MP825 Specifications

* Please see the datasheet for the derating curve.

Additional Features
  • TO-126 style power through-hole resistor
  • Integrated copper mounting surface in moulded package
  • Non-inductive design
  • Constructed with Caddock's Micronox® resistance film technology
  • Maximum voltage rating of 300V
  • Operation up to +150°C case temperature
  • Resistor element is electrically isolated from the mounting surface
Maximum Power Rating 25W
Maximum Resistance 10kΩ
Minimum Resistance 0.02Ω
  • 0 to +300 ppm/°C (between 0.02Ω and 0.049Ω)
  • 0 to +200 ppm/°C (between 0.05Ω and 0.49Ω)
  • -20 to +80 ppm/°C (from 0.5Ω up to 4.99Ω)
  • -20 to +50 ppm/°C (from 5Ω and above)
  • ±1.0% (standard from 0.05Ω and above)
  • ±5.0% (standard from 0.02Ω up to 0.04Ω)
  • ±0.5% (optional for most resistance values)
  • ±2.0% (optional for most resistance values)
  • ±5.0% (optional for most resistance values)
  • ±10.0% (optional for most resistance values)
  • ±20.0% (optional for most resistance values)

This product is available fully compliant to the RoHS EU directive 2011/65/EU and 2015/863/EU

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  • Product Code: Caddock MP825 Series
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Available Options

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MP825-0.15-20%, MP825-0.20-20%, MP825-0.25-20%, MP825-0.30-20%, MP825-0.33-20%, MP825-0.40-20%, MP825-0.50-20%, MP825-0.75-20%, MP825-1.00-20%, MP825-1.50-20%, MP825-2.00-20%, MP825-2.50-20%, MP825-3.00-20%, MP825-3.30-20%, MP825-4.00-20%, MP825-5.00-20%, MP825-7.50-20%, MP825-8.00-20%, MP825-10.0-20%, MP825-12.0-20%, MP825-15.0-20%, MP825-20.0-20%, MP825-25.0-20%, MP825-27.0-20%, MP825-30.0-20%, MP825-33.0-20%, MP825-40.0-20%, MP825-47.0-20%, MP825-50.0-20%, MP825-56.0-20%, MP825-75.0-20%, MP825-100-20%, MP825-120-20%, MP825-150-20%, MP825-200-20%, MP825-250-20%, MP825-300-20%, MP825-330-20%, MP825-400-20%, MP825-470-20%, MP825-500-20%, MP825-560-20%, MP825-750-20%, MP825-1.00 K-20%, MP825-1.50 K-20%, MP825-2.00 K-20%, MP825-2.50 K-20%, MP825-3.00 K-20%, MP825-3.30 K-20%, MP825-4.00 K-20%, MP825-5.00 K-20%, MP825-7.50 K-20%, MP825-10.0 K-20%