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Precision Thermistor Elements

44000 Series   
RoHS
 
Precision Thermistor Elements
44000 Series:Precision Thermistor Elements
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$15.00  44004
Epoxy Encapsulated
Available with 0.1C and 0.2C Interchangeability
High Stability

View related products - Thermistor Elements, Probes and Assemblies

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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 0.2C 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 1C 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 150C. Long-term stability studies show that extended operation or continued cycling above 90C will cause thermistors with values less than 2252 ohms at 25C to exceed tolerances eventually. Thermistors 44030, 44031, 44032 and 44033 are designed for operation below 75C. They will operate safely up to 100C, but extended use above 75C may cause a change in resistance. Storage temperature for thermistors is from -80 to 120C.


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 Part Number   Availability   Price   Description RoHS   Qty.
Click to expand/minimize a list of what others bought with the 44004  44004 In Stock   $15.00    0.2C Interchangeability, 2,252 ohms @ 25C RoHS compliant
Click to expand/minimize a list of what others bought with the 44005  44005 In Stock   $15.00    0.2C Interchangeability, 3,000 ohms @ 25C Compliant upon request
Click to expand/minimize a list of what others bought with the 44007  44007 In Stock   $15.00    0.2C Interchangeability, 5,000 ohms @ 25C Compliant upon request
Click to expand/minimize a list of what others bought with the 44006  44006 In Stock   $15.00    0.2C Interchangeability, 10,000 ohms @ 25C Compliant upon request
Click to expand/minimize a list of what others bought with the 44008  44008 In Stock   $15.00    0.2C Interchangeability, 30,000 ohms @ 25C Compliant upon request
Click to expand/minimize a list of what others bought with the 44033  44033 1 Week   $22.00    0.1C Interchangeability, 2,252 ohms @ 25C Compliant upon request
    44030 1 Week   $22.00    0.1C Interchangeability, 3,000 ohms @ 25C Not RoHS compliant
    44034 In Stock   $22.00    0.1C Interchangeability, 5,000 ohms @ 25C Not RoHS compliant
Click to expand/minimize a list of what others bought with the 44031  44031 In Stock   $22.00    0.1C Interchangeability,10,000 ohms @ 25C Not RoHS compliant
Click to expand/minimize a list of what others bought with the 44032  44032 In Stock   $22.00    0.1C Interchangeability,30,000 ohms @ 25C Not RoHS compliant
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