SRT CHM 1210-HT Series

  • SRT Resistor Technology

Product Features

  • High temperature, non-magnetic thick film chip resistor
  • Resistance range from 100kΩ to 1TΩ
  • Tolerances from ±1% to ±30%
  • TCR from ±25 ppm/°C to ±2000 ppm/°C
  • Power rating of 0.35W (at +70°C)
  • Temperature range from -55°C up to +300°C


The CHM 1210-HT high temperature, high ohmic non-magnetic resistor series from SRT Resistor Technology offers the same features as the CHM 1210 range, while allowing for high temperature applications of up to 300°C. The main features comprise of a wide resistance range from 100kΩ up to 1TΩ, power rating of 0.35W and voltage rating of 800V trimmed or 1200V untrimmed (tolerances ≥5%), all in a small 1210 surface mount package. By utilising SRT’s meander structured thick film resistor technology, these chip resistors are able to offer tolerances down to ±1% (between 100kΩ and 1GΩ) as well as a TCR of ±25 ppm/°C (between 100kΩ and 10GΩ) and a VCR as low as ±50 ppm/V (between 100kΩ and 1GΩ). The CHM 1210-HT resistor series contains no organics making them suitable for high vacuum applications and offer PtAg (platinum silver) terminations for conductive gluing and soldering.

  • High temperature meander structured surface-mount thick film chip resistor
  • Available in any resistance between 100kΩ and 1TΩ
  • 1210 package
  • Power rating of 0.35W at +70°C
  • Voltage rating of 800V trimmed or 1200V untrimmed (tolerances ≥5%)
  • Tolerances as low as ±1% over the resistance range of 100kΩ up to 1GΩ
  • TCR as low as ±25 ppm/°C over the resistance range of 100kΩ to 10GΩ
  • VCR as low as ±50 ppm/V over the resistance range of 100kΩ up to 1GΩ
  • Temperature range from -55°C up to +300°C
  • Non-magnetic
  • PtAg (platinum silver) terminations for conductive gluing and soldering
  • Low temperature and voltage dependency
  • No organics


Custom tolerance, TCR and VCR options are available upon request. Please contact us for further information and availability.

Please see the derating curve below for the CHx-HT, CRB-HT and CBW-HT series from 0°C to +300°C:

SRT CHM-HT Derating curve

The final measuring of the resistors takes place at room temperature (independent of TCR).

Please pay attention to the interconnection technology at high temperature applications.


Please note, the tolerance for the CHM 1210-HT series starts from ±1%, whereas the below table gives full specifications of the standard CHM series:

SRT CHM Specifications
1) At continuous power dissipation the dimensions of solder-pads have to secure a sufficient heat removal
2) TCR: in ppm/K; +25°C…+125°C; TCR lower than standard TCR (highest value) or value >100G: +25°C…+85°C
3) VCR: typical values, all negative, not for all TCR values available


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Weight 0.00000 kg
Dimensions 0.50 x 2.50 x 3.20mm
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RoHS Compliant Product – SRT with Exemption

This product is available compliant to the RoHS EU directive 2011/65/EU, however, the following exemptions according to the RoHS annex are applicable:

  • No. 7(a) – 'Lead in high melting temperature type solders (i.e. lead-based alloys containing 85% by weight or more lead)' used in leaded resistors
  • No. 7(c)-I – 'Electrical and electronic components containing lead in glass or ceramic…or in a glass or ceramic matrix compound' used in chip resistors and leaded thick film resistors

    SRT CHM-HT 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:



    SRT high temperature CHx-HT, CRB-HT and CBW-HT series SMD chip resistor datasheet
    SRT standard CHM high ohmic meander structured SMD chip resistor datasheet




    SRT CHM 1210-HT Series Resources

    Product Datasheet

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    SRT CHM 1210-HT Series

    Please be advised that due to the ongoing supply issues with raw materials affecting the global electronics industry, as well as an increase in orders received by our manufacturing partners, a large number of products are facing increased lead times in recent months. For the latest lead time and stock availability, please contact one of our engineers who will be happy to discuss lead times further and the potential for alternative parts.