Honeywell 115-202CDK-801 Temp Sensing E-I Matched Bead Thermistor
The Honeywell 115-202CDK-801 temp sensing thermistor is part of Honeywell’s 115 Series, a product family developed for applications where temperature behavior and thermal conductivity response need to be measured with precision. This is not simply a general-purpose resistor-like component. The Honeywell 115-202CDK-801 temperature sensor is engineered as a matched bead thermistor assembly for technical environments where thermal response quality has direct system impact.
What Makes the 115 Series Different
Honeywell’s 115 Series uses small bead thermistors that are hermetically sealed in glass and mounted on a special header for easier installation. This design supports relatively uniform size, fast response, and sensitivity to temperature changes and airflow movement. In practice, that means the Honeywell 115-202CDK-801 temp sensing device can be relevant in thermal conductivity instruments, gas analysis platforms, and precision monitoring equipment.
Key Technical Specifications
The Honeywell 115-202CDK-801 temp sensing thermistor has a nominal resistance of 2000 ohms at 25°C with a tolerance of ±25%. The datasheet also lists approximate resistance values of 5000 ohms at 0°C and 910 ohms at 50°C. Its nominal beta value across 0°C to 50°C is 3000 K, and the temperature coefficient at 25°C is -3.4% per °C. Maximum ambient temperature is specified at 100°C, while maximum operating temperature including self-heating reaches 150°C.
Application Relevance
This Honeywell 115-202CDK-801 temperature sensor is often associated with gas analysis instruments, gas or airflow detection, vacuum sensing equipment, medical electronics, industrial controls, and test equipment. One of its practical advantages is that the thermistor pair is matched, which can reduce the need for individual calibration in certain thermal conductivity measurement designs.
Why Engineers Look for This Part
Searches for NTC thermistor, 2000 ohm thermistor, temperature sensing thermistor, and gas analysis thermistor are usually tied to replacement, design validation, or system maintenance. The Honeywell 115-202CDK-801 temp sensing thermistor fits this technical intent because it combines measurable thermal performance with a format intended for precision integration.
FAQ
What is the Honeywell 115-202CDK-801 used for?
It is used in applications such as gas analysis, airflow detection, thermal conductivity measurement, industrial controls, and temperature monitoring equipment.
What is the resistance of the Honeywell 115-202CDK-801 at 25°C?
The nominal resistance is 2000 ohms at 25°C, with a listed tolerance of ±25%.
Is the Honeywell 115-202CDK-801 a glass-sealed thermistor?
Yes. The 115 Series is built from small bead thermistors that are hermetically sealed in glass and mounted on a header assembly.
Does this thermistor respond quickly to temperature changes?
Yes. Honeywell describes the 115 Series as offering fast response and high sensitivity to temperature changes and airflow movement.
What makes the matched bead design important?
The matched pair approach helps improve consistency between sensing elements and can reduce calibration effort in suitable instrument designs.
For more information about Honeywell, you can review additional sensing technologies and industrial temperature solutions.