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Home >> Temperature Products >> Thermistor Elements,... >> Thermistor Elements >> 44000 Series

Precision Thermistor Elements

44000 Series   
RoHS
 
Precision Thermistor Elements
44000 Series:Precision Thermistor Elements
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USD$735.00  44004
Epoxy Encapsulated
Available with 0.1°C and 0.2°C 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 0.2°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   Availability   Price   Description RoHS   Qty.
Click to expand/minimize a list of what others bought with the 44004  44004 Consult Sales   735.00    ±0.2°C Interchangeability, 2,252 ohms @ 25°C RoHS compliant
Click to expand/minimize a list of what others bought with the 44005  44005 In Stock   735.00    ±0.2°C Interchangeability, 3,000 ohms @ 25°C Compliant upon request
Click to expand/minimize a list of what others bought with the 44007  44007 In Stock   735.00    ±0.2°C Interchangeability, 5,000 ohms @ 25°C Compliant upon request
Click to expand/minimize a list of what others bought with the 44006  44006 Consult Sales   735.00    ±0.2°C Interchangeability, 10,000 ohms @ 25°C Compliant upon request
Click to expand/minimize a list of what others bought with the 44008  44008 In Stock   735.00    ±0.2°C Interchangeability, 30,000 ohms @ 25°C Compliant upon request
Click to expand/minimize a list of what others bought with the 44033  44033 Consult Sales   1,060.00    ±0.1°C Interchangeability, 2,252 ohms @ 25°C Compliant upon request
    44030    Consult sales   ±0.1°C Interchangeability, 3,000 ohms @ 25°C Not RoHS compliant
Click to expand/minimize a list of what others bought with the 44034  44034 In Stock   1,060.00    ±0.1°C Interchangeability, 5,000 ohms @ 25°C Not RoHS compliant
Click to expand/minimize a list of what others bought with the 44031  44031 10 Weeks   1,060.00    ±0.1°C Interchangeability,10,000 ohms @ 25°C Not RoHS compliant
Click to expand/minimize a list of what others bought with the 44032  44032 In Stock   1,060.00    ±0.1°C Interchangeability,30,000 ohms @ 25°C Not RoHS compliant
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 Ordering Example: (1) 44004 Thermistor, USD$735.00

   

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