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When it comes to components that measure temperature, you have to mention sensors and thermistors. These temperature control devices play a huge role in our lives, they help coffee makers, electric cars, thermometers and more to work properly. So what is an NTC 100K thermistor?
An NTC 100K thermistor is a special type of NTC thermistor with a resistance value of 100,000 ohms at 25°C. The NTC 100K thermistor is a thermistor with a resistance value of 100,000 ohms at 25°C. The 100K ohm rating refers to the resistance value at a standard calibration temperature of 25°C. This guide helps engineers understand the NTC 100K thermistor.
This guide helps engineers understand NTC 100K thermistors. Our expert insights can also optimize your projects. In addition, this guide expands on testing, application scenarios, and troubleshooting for this thermistor.
What is NTC 100K Thermistor?
An NTC thermistor (short for thermistor) is a resistor whose resistance changes significantly with temperature. The resistance of a negative temperature sensor decreases with increasing temperature.
What does “NTC 100K” mean?
NTC 100K refers to a specific type of thermistor with the following characteristics:
- 100K (100,000 ohms): This indicates the resistance value of a thermistor at a specific temperature, typically 25°C (room temperature).
The “100K” defines the resistance value of this thermistor at the reference temperature. This is important for designing circuits and systems that rely on accurate temperature measurements.
Main Applications For NTC 100K Thermistors
How NTC 100K is applied in home appliances
Thanks to its high accuracy and single-ended glass sealing for heat resistance, it can be adapted to high-temperature environments. DTTTEK’s sensors are resistant to temperatures from -40°C to +260°C, and can be used in household appliances such as ovens, grills, and barbecue thermometers.
How NTC 100K is applied for Energy Efficiency
Another application for the 100k ohm thermistor is to improve energy efficiency. For example, in electric vehicles, it can prevent the motor from overheating by monitoring the battery temperature.
What’s the difference between 10K and 100K NTC Thermistor?
The nominal resistance at a specific temperature is the main difference between 10 K NTC thermistors and 100 K NTC thermistors. In addition, there are differences in temperature and materials used.
Temperature difference
When choosing an NTC thermistor, you need to be concerned about the actual NTC thermistor. Generally speaking, the difference between these two and the temperature has a direct correlation. That is, when measuring the same thing, their temperatures may present different states.
- If it is a 10K ntc thermistor, in this case it is mainly used in low temperature products, such as below 80 degrees Celsius.
- As for 100K ntc thermistor, then this product is basically used in the process of using some high temperature products. Their temperature resistance will be between 100 degrees Celsius and 250 degrees Celsius.
In the actual use of the process, to combine the actual situation to look at the different temperature changes, only in this way can bring us a better choice.
Different Manufacturing Materials
The different nominal resistance values of NTC thermistors at specific temperatures and the different operating environments. These factors result in different manufacturing materials.
- 10K NTC thermistors are basically used in normal environments. So they are encapsulated with epoxy resin.
- 100K NTC thermistors are glass-encapsulated to facilitate their stable use in high temperature environments.
Different resistance values
NTC thermistors will have a variety of resistance values when it comes to actual use. If the temperature is at a temperature of 25 °C:
- 10k ntc thermistor in the process of practical use of ohms, generally speaking, are 10 kilohms, commonly used are 3435k.
- The resistance value of 100k is 100 kOhm, and the most common is 3950k.
| Temperature | 10K | 100K |
| 0 | 32.7547 | 327.0195 |
| 5 | 25.4562 | 254.2428 |
| 10 | 19.938 | 199.2007 |
| 15 | 15.7317 | 157.229 |
| 20 | 12.5005 | 124.9734 |
| 25 | 10 | 100 |
Choosing the Right NTC 100K Thermistor
There are differences in the characteristics of 100K thermistors from different manufacturers, so choosing the right 100K value cross-reference table is critical.
The K-value comparison table is a table used to compare the characteristics of different 100K thermistors. It provides information on the resistance values of different thermistors at different temperatures, which can better assist in selecting the right thermistor.
Below is a simple step-by-step instruction:
- First, determine the desired temperature range. For example, 100°C to 150°C, look up the corresponding resistance value in the 100K value cross-reference table.
- Next, depending on the target resistance value, select a thermistor that is close to or slightly above that resistance value. Before using the selected thermistor, be sure to verify that its characteristics meet the requirements. You can perform an actual test to compare the measured results with the resistance values given in the value comparison table.
- Moreover, other factors such as thermistor stability, response time, etc., need to be considered in practical applications.
Conclusão
The NTC 100K thermistor is one of the most important components in today’s society. Its high temperature resistance makes it deeply used in common appliances such as ovens and motors. An in-depth understanding of its B-value, resistance and application scenarios can better assist system designers and engineers in realizing robust and reliable electronic designs.
As the electronics market grows and NTC thermistor manufacturers innovate, components such as the NTC 100K thermistor will continue to help improve efficiency and ensure the safe operation of a wide range of electronic devices.
If you have any further questions, please feel free to contact us by e-mail: sales@dtttek.com
Or click on DTTTEK to download our latest brochure for more information.
FAQs
1. How can I calculate temperature from resistance measurements?
Resistance can be accurately converted to temperature with the help of the Steinhart-Hart equation, as well as the beta value of the thermistor and the 100K ohm specification.
2. Can I use NTC 100K thermistors for high temperature applications?
Yes, you can.
The NTC 100K thermistor is encapsulated in glass and is highly heat resistant. In general, it is resistant to temperatures from -40 to 250°C.
3. How often do 100k ohm thermistors need to be replaced?
It depends on the environment and usage.
Also, regular inspection will give you an idea of the thermistor’s operating condition.
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