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Epoxy Coated Thermistor Elements

Precision Thermistor Elements

$24.96

Item# 44004

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-9 $24.96
10-24 $23.71
25-49 $23.21
50-99 $22.21
100-199 $21.72
200+ $21.22

In stock

Lead Time (If not in stock): 59 weeks
Precision Thermistor Elements 44004 44004
  • Epoxy Encapsulated
  • Available with 0.1°C and 0.2°C Interchangeability
  • High Stability

44004 Model Options

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Edit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.

*Highlighted options are not compatible. Please select a different combination.

Resistance or Output Type
Temperature Accuracy
Maximum Resistance
Application
Maximum Temperature Measurement
Minimum Temperature Measurement
Additional Features


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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Rated 5 out of 5 by from Great Great performace and packaging. Impression at first look.
Date published: 2015-11-25
Rated 5 out of 5 by from C6 Z06 I used the 44005 thermister as a fast acting temperature sensor to measure Air Intake Temperature accurately when the methanol injection system turns on.
Date published: 2017-01-04
Rated 5 out of 5 by from Excellent reaction times I bought this about a month ago and it worked flawlessly. I utilized it as a temp sensor on my car and the accuracy and reaction time of the temperature change was better than advertised.
Date published: 2016-12-11
Rated 4 out of 5 by from No issues so far haven't gotten a chance to use yet but was shipped quickly and no noticeable defects
Date published: 2023-03-27
Rated 5 out of 5 by from Great Product We use this to replace the original thermal in a motor.
Date published: 2019-03-25
Rated 5 out of 5 by from Works great as an air speed sensor Running this in a self heating mode to measure low velocity air speed. The TRM-164116-6 ceramic tube is a good match to hold the element in the airflow.
Date published: 2018-06-19
Rated 5 out of 5 by from Precision and functionality of design New installation meeting my design and specification.
Date published: 2018-01-31
Rated 5 out of 5 by from Works perfectly! Highly-sensitive to temperature change. I used it to replace my car's ambient temperature sensor. As soon as I start pulling out of my garage, the temperature reading started to change. It was definitely a lot hotter in the garage and the gradual drop in temperature reading once outside validates the accurate function of the thermistor. I'm happy with the purchase and the product.
Date published: 2017-08-11
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I need a thermister that has higher resistance at lower temps, and less - zero resistance at higher temps. It's for a low fuel sender on motorcycle. So if thermister is in fuel, high resistance not in fuel no resistance. Between 40°F-70°F fuel temp

Asked by: Chosen2Dv8
Thank you for your inquiry. Our 44000 Series Thermistor are NTC Thermistors. High Resistance at Low Temperature; Low Resistance at Higher Temperatures.
Answered by: CB Engineer
Date published: 2020-08-25

We are using your 44006 thermistors in our test setup. Can you provide thermistor coefficient ka, kb, and kc?

Asked by: Fengguo
They give the coefficient in this document here: https://users.obs.carnegiescience.edu/crane/pfs/man/Electronics/Omega-44000-thermistors.pdf Which should be ka:1.032-E03 kb:2.387-E04 kc:1.580-E07 I had myself trouble finding these coefficient.
Answered by: Desj
Date published: 2021-06-04

Where can I find the temp vs, resistance tables for these thermistors? The data sheet says they can be found on pages Z-236 and Z-237, but there are no such pages in the data sheet.

Asked by: Chance
The Thermistor tables for Resistance vs. Temperature can be found at this link https://www.omega.com/en-us/technical-reference
Answered by: ApplicationsEngineerANB
Date published: 2024-04-16

Is the product 44006 ROHS 3 compliant?

Asked by: Gopalkpandya
Thank you for your inquiry Gopalkpandya. The 44006 is not RoHS 3 compliant. Our products are only compliant up to RoHS 2. If you have any other questions, please do not hesitate to contact us directly at 1-800-622-2378, ask for Temperature Engineering or temp@omega.com.
Answered by: Application Engineer MC
Date published: 2024-10-05
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