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Precision Thermistor Elements

44000 Series

Precision Thermistor Elements | 44000 Series

Precision Thermistor Elements

CAD18.75 44004

RoHS
  • Epoxy Encapsulated
  • Available with 0.1°C and 0.2°C Interchangeability
  • High Stability
Thermistor Elements, Probes and Assemblies - View related products

Description

Construction
Thermistors are manufactured from oxides of nickel, manganese, iron, cobalt, magnesium, titanium and other metals. All are available epoxy encapsulated and color coded, with two 3" leads.Thermistors with 0.2°C interchangeability also are available encased in a 2" long waterproof PFA tube; order by adding 100 to the part number. For example: 44005 is a standard 3000 ohm thermistor; 44105 is a PFA-encased thermistor with the same temperature/resistance values. Stiff wire is placed in the tube so that, with slight finger pressure, it can be bent to any configuration. For PFA-encased thermistors, consult the factory.

Stability
Finished thermistors are chemically stable and not significantly affected by aging or exposure to strong fields of hard nuclear radiation. Time Constant -The time required for a thermistor to indicate 63% of a newly impressed temperature is called the time constant. For a thermistor suspended by its leads in a “well stirred” oil bath, it is 1 sec. max., or 2.5 sec. max. for PFA-encased thermistors, and in still air it is 10 sec. max., or 25 sec. max. for PFA units.

Dissipation Constant
The power in milliwatts required to raise a thermistor 1°C above the surrounding temperature is the dissipation constant. For all thermistors suspended by their leads in a “well stirred” oil bath, it is 8 mw/ °C min., or 1 mw/°C min. in still air. Operating Temperature -Maximum operating temperature is 150°C. Long-term stability studies show that extended operation or continued cycling above 90°C will cause thermistors with values less than 2252 ohms at 25°C to exceed tolerances eventually. Thermistors 44030, 44031, 44032 and 44033 are designed for operation below 75°C. They will operate safely up to 100°C, but extended use above 75°C may cause a change in resistance. Storage temperature for thermistors is from -80 to 120°C.
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Part Number/ Desc.
Qty
RoHS
Description
Click to expand/minimize a list of what others bought with the44004
44004 Star
CAD18.75
Availability: In Stock
RoHS compliant
±0.2°C Interchangeability, 2,252 ohms @ 25°C
Click to expand/minimize a list of what others bought with the44005
44005 Star
CAD18.75
Availability: In Stock
Compliant upon request
±0.2°C Interchangeability, 3,000 ohms @ 25°C
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44007 Star
CAD18.75
Availability: In Stock
Compliant upon request
±0.2°C Interchangeability, 5,000 ohms @ 25°C
Click to expand/minimize a list of what others bought with the44006
44006 Star
CAD18.75
Availability: In Stock
Compliant upon request
±0.2°C Interchangeability, 10,000 ohms @ 25°C
Click to expand/minimize a list of what others bought with the44008
44008 Star
CAD18.75
Availability: In Stock
Compliant upon request
±0.2°C Interchangeability, 30,000 ohms @ 25°C
Click to expand/minimize a list of what others bought with the44033
44033 Star
CAD27.50
Availability: In Stock
Compliant upon request
±0.1°C Interchangeability, 2,252 ohms @ 25°C
  
44030 Star
CAD27.50
Availability: 15 weeks
Not RoHS compliant
±0.1°C Interchangeability, 3,000 ohms @ 25°C
Click to expand/minimize a list of what others bought with the44034
44034 Star
CAD27.50
Availability: In Stock
Not RoHS compliant
±0.1°C Interchangeability, 5,000 ohms @ 25°C
Click to expand/minimize a list of what others bought with the44031
44031 Star
CAD27.50
Availability: In Stock
Not RoHS compliant
±0.1°C Interchangeability,10,000 ohms @ 25°C
  
44032 Star
CAD27.50
Availability: 1 week
Not RoHS compliant
±0.1°C Interchangeability,30,000 ohms @ 25°C
All dollar amounts on this site are shown in Canadian currency. Ordering Example: (1) 44004 Thermistor, CAD18.75