Caddock MS Series

  • Caddock

Product Features

  • Precision high temperature power axial leaded through-hole resistor
  • Maximum operating voltage up to 6kV
  • Maximum operating temperature up to +275°C
  • Utilises Caddock’s Micronox® resistance film for outstanding stability when exposed to a high ambient temperature, thermal shock and high power densities
  • MS resistors have demonstrated excellent long-term stability of 0.05% per 1,000 hours over extended life
  • Caddock’s non-inductive design available on some models


  • Rhopoint Energy


The MS power film resistor family from Caddock are axial-lead resistors with a wide resistance range from 20Ω to 30MΩ and a maximum operating temperature of +275°C. These resistors have a power rating of up to 22W at +25°C and maximum voltage of 6000V. Caddock MS power film high voltage resistors are cost effective high voltage resistors. Caddock MS power film high voltage resistors performance begins with Caddock’s Micronox® resistance films which are fired directly onto a ceramic core at temperatures above 1400°F (760°C). These resistance films have demonstrated outstanding stability when exposed to a high ambient temperature, thermal shock and high power densities.

  • High voltage power film through-hole resistor
  • Higher voltage ratings without the limitations of minimum wire size and spacing
  • Resistance values available between 20Ω and 30MΩ
  • TCR ±80 ppm/°C (between 0°C and +70°C)
  • Tolerance of ±1.0% (±0.1% are available on special order)
  • Maximum power rating of up to 22W (at +25°C, MS322 model) or up to 13.2W (at +125°C, MS322 model)
  • Maximum voltage 6000V
  • Maximum operating temperature +275°C
  • Excellent long term stability

Most models are manufactured with Caddock’s non-inductive serpentine resistive pattern that provides a truly non-inductive resistor that is about as inductive as a straight piece of wire the length of the resistor body. Caddock MS series lead material is nickel clad copper with thin gold plate, solderable. For welding applications, optional pure nickel leads are available on Models MS126, MS150, MS151, MS175, MS176, MS210.

The below table gives the specifications available for the complete MS resistor series:

Caddock MS series Specifications

Caddock MM SpecificationsModels with low inductance construction are in shaded areas

Caddock MM Specifications Models with Caddock’s non-inductance resistance pattern are in non-shaded areas

* limited by power rating


Weight 0.00000 kg
Dimensions 0.00 × 0.00 × 0.00 mm
Minimum Resistance

Maximum Resistance

Temperature Coefficient

Power Rating

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Additional Features



RoHS Compliant Product – Caddock

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

Caddock MS Series Technical Library

We are pleased to provide you with a range of additional content including videos, product datasheets, case studies, white papers and application notes for your reference. Please see below for the latest content available:



Caddock MS power film axial leaded resistor series datasheet
Designing with Caddock TO-style heat sink mountable power film resistors application note (AEN-0101)
Understanding the power rating of Caddock MP9100 resistors application note (AEN-0102)
Application of the type CHR high resistance precision chip resistor products application note (AEN-0103)
Terminal finish and soldering proces information for Caddock resistor products application note (AEN-0104)
Caddock resistor products and the RoHS directive application note (AEN-0105)
Customer applications that are outside the scope of the RoHS directive application note (AEN-0106)
Caddock REACH compliance statement application note (AEN-0107)
Recommended solder reflow profile for caddock surface-mount resistors application note (AEN-0108)

Caddock MS Series

Calculators and Converters

Work out what you need for your project. Go to calculators and convertors


Contact us if you need your items quicker or need more than in stock.

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