Caddock TF656 Series

  • Caddock

Product Features

  • Ultra-precision film through-hole resistor
  • Radial or axial leaded variants available
  • Maximum working voltage of 1.4kV
  • Constructed with Caddock’s Tetrinox® resistance films
  • Long term stability to 0.01% per 1,000 hours
  • Storage temperature range from -55°C up to +105°C


  • Scientific Instrumentation
  • Test and Measurement


The TF656 series from Caddock are low TCR ultra-precision film resistors, with a resistance range from 10.01MΩ to 125MΩ. These resistors have a tolerance range from ±0.25% to ±1.0%. The TCR values available are ±5 ppm/°C (between -15°C and +105°C), ±10 ppm/°C (between -15°C and +105°C) and ±15 ppm/°C (between -15°C and +105°C). The Caddock TF656 series is available with either radial or axial tinned copper leads, it offers long term stability and is constructed using the Tetrinox® resistance technology.

  • Ultra precision film through-hole resistors
  • Radial or axial leaded variants available
  • Resistance values available between 10.01MΩ and 125MΩ
  • TCR of ±5 ppm/°C (between -15°C and +105°C), ±10 ppm/°C (between -15°C and +105°C) and ±15 ppm/°C (between -15°C and +105°C)
  • Tolerance of ±0.01%, ±0.025%, ±0.05%, ±0.1% and ±1.0%
  • Maximum power rating of 0.75W (at +70°C)
  • Long term stability to 0.01% per 1,000 hours
  • Storage temperature range from -55°C up to +105°C
  • Maximum working voltage of 1,400V
  • Utilises Caddock’s Tetrinox® resistance technology

Additional cost savings can be realized when your high volume ultra-precision Caddock TF656 resistor is optimized for:

  • Lightning transient capability
  • Voltage rating
  • Power rating
  • Mechanical configuration
  • Ratio matched sets

The below table gives the specifications available for the TF656 resistor series:

Caddock TF656 series Specifications


Weight 0.00000 kg
Dimensions 38.10 × 1.91 × 12.70 mm
Minimum Resistance

Maximum Resistance

Temperature Coefficient

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Power Rating

Additional Features


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RoHS Compliant Product – Caddock

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

Caddock TF 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 TF low TC ultra-precision film 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 process 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 TF656 Series

Calculators and Converters

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