Caddock MK227 Series

Caddock MK227 Series
The MK227 precision power film radial leaded resistor series from Caddock offers a resistance range from 1Ω up to 2MΩ, a power rating of 0.5W and a voltage rating of 200V. The MK227 series has a tolerance of ±1.0% as standard with options down to ±0.1% on resistances of 30Ω or higher, and also a TCR of ±50 ppm/°C for resistance values of 5Ω and above. The MK resistor series is constructed with Caddock's Micronox® resistance films fired onto a solid ceramic substrate.
  • Compact rectangular power film radial leaded resistor with standard lead spacing
  • Available in any resistance between 1Ω and 2MΩ
  • Utilises Caddock's Micronox® resistance film technology
  • Utilises Caddock's non-inductive design
  • Tolerance of ±1.0% as standard with non-standard options down to ±0.1% from 30Ω and above
  • TCR of ±50 ppm/°C from 5Ω and above (between -15°C and +105°C)
  • Maximum working voltage of 200V
  • Maximum power rating of 0.5W
  • Operating temperature of between -40°C and +150°C

The MK200 and MK700 series of resistors are the RoHS equivalent versions of the older non-RoHS MK100 and MK600 series. These resistors have pure matte Tin (Sn) lead finish optimised for use in commercial and industrial applications.

With their compact design, it is easier to achieve greater packaging densities without the need for leaving extra space where resistor value changes can require larger resistors or non-uniform lead spacing.

The below table gives the specifications available for the complete MK200 resistor series including the MK227:

Caddock MK200 Specifications
Specifications
Additional Features
  • Precision power film radial leaded through-hole resistor
  • Non-inductive with expanded resistance range
  • Maximum working voltage of 200V
  • Compact rectangular package with standard lead spacing
  • Constructed with Caddock's Micronox® resistance films fired onto a solid ceramic substrate
  • Extended life stability is typically better than 0.1% per 1,000 hours
  • Operating temperature range from -40°C up to +150°C
Maximum Power Rating
  • 0.5W (at +857°C)
Maximum Resistance
  • 2MΩ
Minimum Resistance
TCR
  • ±200 ppm/°C (1Ω up to 4.99Ω)
  • ±50 ppm/°C (5Ω and above)
Tolerance
  • ±1.0% (tolerances down to ±0.1% available on resistances of 30Ω or higher)

RoHS Compliance

This product is available compliant to the RoHS EU directive 2011/65/EU, but, requires extra care during “Lead(Pb)-Free” wave soldering. The temperature of the resistor terminal adjacent to the resistor body must be maintained below 219°C during soldering.

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  • Product Code: Caddock MK227 Series
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