02030203| Datasheet

By datasheet - May 8th, 2008

02030203| Datasheet

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Climatic Conditions Climatic conditions
1 Reliability data For most measuring NTC thermistors and in particular for those featuring high measuring accuracy, reliability data are given in the data sheets. These data provide information on the deviation of rated resistance under high thermal, electrical or mechanical stress. These resistance tolerances are in the range of a few percent and have therefore no relevance for coarsely tolerated NTC thermistors. 2 Operating temperature range / ambient temperatures

Thermistors are assigned to climatic categories according to the climatic conditions under which they have been tested. The IEC climatic category is specified for all NTC thermistors in the data sheets. In accordance with IEC 60068-1 (Appendix A) the climatic category is made up of three sets of digits, which are decoded as shown in the following example: Example: Climatic category Test A: Cold (lower category temperature) 55 C (in accordance with IEC 60068-2-1) Dry heat (upper category temperature) + 125 C (in accordance with IEC 60068-2-2) Damp heat (duration of test) 56 days (in accordance with IEC 60068-2-3) 55/125/56

Test B:

Test C:

203 05/02