SRT CHR 0402-HT Series

  • Exempt
  • SRT Resistor Technology

Product Features

  • High temperature, non-magnetic thick film chip resistor
  • Resistance range from 1Ω to 10MΩ
  • Tolerances from ±2% to ±20%
  • TCR from ±50 ppm/°C to ±250 ppm/°C
  • Power rating of 0.05W (at +70°C)
  • Temperature range from -55°C up to +300°C

Applications

  • Medical
  • Oil & Gas

Description

The CHR 0402-HT high temperature non-magnetic resistor series from SRT Resistor Technology offers the same features as the CHR 0402 range while allowing for high temperature applications of up to 300°C. The main features comprise of a wide resistance range from 1Ω up to 10MΩ, power rating of 0.05W and voltage rating of 30V trimmed or 60V untrimmed (tolerances ≥5%), all in a small 0402 surface mount package. By utilising SRT’s thick film resistor technology, they are able to offer low tolerances down to ±2.0% (between 100Ω and 10MΩ) and TCR as low as ±50 ppm/°C (between +25°C and +85°C). The CHR 0402-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 surface-mount thick film chip resistor
  • Available in any resistance between 1Ω and 10MΩ
  • 0402 package
  • Power rating of 0.05W at +70°C
  • Voltage rating of 30V trimmed or 60V untrimmed (tolerances ≥5%)
  • Tolerances as low as ±2.0% over the resistance range of 100Ω up to 10MΩ
  • TCR as low as ±50 ppm/°C over the resistance range of 100Ω to 10MΩ
  • Temperature range from -55°C up to +300°C
  • Non-magnetic
  • PtAg (platinum silver) terminations for conductive gluing and soldering
  • 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 CHR-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 CHR 0402-HT series starts from ±2%, whereas the below table gives the full specifications of the standard CHR series:

 

SRT CHR Specifications
1) TCR: in ppm/K; +25°C…+125°C; TCR below standard TCR (highest value): +25°C…+85°C
2) Continuous operating voltage (U_, Ueff): V ≤ √(P*R) or max. working voltage (the lower value)
3) At continuous power dissipation the dimensions of solder-pads have to secure a sufficient heat removal Power Mode: 2W as CHR 2512-HT (P70=2W, P300=0W) and 3W as CHR 4020-HT (P70=3W, P300=0W) respectively. Higher power rating requires an adequate heat removal (e.g. increased solder pads or Copper thicknesses). The user has to guarantee, that solder joints will not run over their load limit. The resistor must not exceed the specified operating temperature range

 

 

Specifications

Weight 0.00000 kg
Dimensions 0.95 × 0.48 × 0.28 mm
Product Type

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Minimum Resistance

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Tolerance

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Termination / Connection Type

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 CHR-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:

     

     

    DOCUMENTATION
    SRT high temperature, non-magnetic, surface-mount chip resistor CHx-HT, CRB-HT and CBW-HT series datasheet
    SRT standard CHR high ohmic SMD chip resistor datasheet

     

     

     

    SRT CHR 0402-HT Series

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