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  • Thermometrics Sensor Assemblies | A990 Interchangeable NTC Thermistor Sub-Assembly

Thermometrics Sensor Assemblies | A990 Interchangeable NTC Thermistor Sub-Assembly

    Temperature Sensor Assemblies

Amphenol Thermometrics NTC Interchangeable Thermistor Sub-Assemblies Type A990 Series

Thermometrics A990 Series of Interchangeable NTC Thermistor Sub-assemblies consist of matched pairs of small, glass encapsulated thermistor beads which are connected in either series or parallel circuit configurations. These sub-assemblies are available in a variety of styles which enable them to be used in measuring the temperature of liquids or solids or to be encapsulated into larger housings such as hypodermic needles or closed end sheaths. The sub-assemblies provide interchangeable resistance-temperataure characterisitics in extremely small, fast response packages, which are easy to handle.

 

 

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  • Applications
  • Features
  • Specifications
  • Product Documents
  • Part Nos.

Applications

Type A990B For insertion into metal housing or close tolerance openings.
Type A990C Fully immersible sub-assembly for use in conductive fluids.
Type A990D Limited depth immersion or surface contact, for use in measuring the temperature of liquids or solids.
Type A990E Fully immersible sub-assembly with additional mechanical strain relief, for use in metal housings for liquid immersion or close tolerance openings.
Type A990M Sub-assembly encapsulated into sharpened hypodermic needle with 3 ft (1 m) extension leads of #28 GA PVC wire. For use in various laboratory temperature measurements.
Type A990P Standard sub-assembly encapsulated into vinyl catheter tubing with #28 GA PVC wire extension leads, for use in various commercial applications.
Type A990T Sub-assembly encapsulated into closed end stainless steel sheath with threaded hub. For use in various commercial applications or severe environments.

Features

  • Interchangeable resistance-temperature characteristics in extremely small, fast response packages which are easy to handle.
  • Available from stock and/or with fast delivery.
  • Resistance, tolerances and temperature ranges, other than those which are indicated, may be available upon special order.
  • Other assembly configurations may be available upon special order. Please consult the factory for any special requests or modifications.

Specifications

Maximum Operating Temperature 221°F (105°C)
Storage Temperature 221°F (105°C)

 

Product Documents

English

Thermometrics NTC Thermistors | Assembly Type A990 Series Datasheet

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Optimizing Performance Efficiency and Safety

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English

Thermometrics | Temperature Resistance Curves - Reference Guide

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Temperature Sensor Solutions | Thermometrics - Brochure

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Amphenol Advanced Sensors | Connecting Your World Through Sensing Innovations - OEM Product Catalog

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Part Nos.

Part number variations are described in the datasheet.

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