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NBFC-36-IT
Suggested applications
Level sensors
Tea makers
Commercial ice makers
Commercial refrigerators
Drain sensors
Electric generators
Shape and dimensions:
Specifications:
| Resistance | R(0℃)=6kΩ ±2.5% |
| B constant | B(0℃/100℃)=3390K ±2% |
| Insulation resistance | Over 100MΩ at DC500V (heat sensing portion in water, between water and lead wires) |
| Dielectric strength | 1000V AC for 1 minute or 1200V AC for 1 second, without trouble (heat sensing section in water, between water and lead wires; cut-off current 0.5mA) |
| Thermal time constant | τ = less than 3 seconds (in agitated water) |
| Thermal dissipation constant | σ = approximately 2mW/℃ (in still air) |
| Operating temperature range | -20℃ to +200℃ |
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 Download R/T table for NBFC-36-IT
Reliability testing: other rating
Mechanical strength tests
The following tests are to be carried out. After testing, there must be no failure in electrical characteristics. |
| Lead tensile strength (thermistor main section) | The sensing section of the thermistor is fixed; 30N of straight pulling force is gradually applied to lead wires (two wires together), then held for 10 seconds |
Environmental resistance tests
After conducting the following tests, the unit is to left for 1 hour at room temperature. Rate of change in resistance is to be less than 3%; insulating resistance and dielectric strength must meet standards. |
| Heat resistance | Stored in air at 200℃ ±3℃ for 1,000 hours |
| Heat cycle test | 50 cycles of the following test:
-20℃ ±3℃, 10 minutes in air to room temperature, 5 minutes in air to 200℃ ±3℃, 10 minutes in air to room temperature, 5 minutes in air. |
| Boiling water test | 5 cycles; 5 hours in 100℃ water to 19 hours in air at room temperature |
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Instructions for handling, installation and use of thermistors
Please carefully follow these instructions to avoid damage to and/or faulty operation of thermistors:
| 1. | Never exceed maximum rated power. |
| 2. | When the thermistor is used as a sensor for the control of a device, be sure to incorporate appropriate safety measures to prevent accidents, such as a separate safety circuit or back-up sensor. |
| 3. | If the thermistor will be exposed within the device, an instruction to end users warning that the thermistor must not be touched must be included. |
| 4. | Ensure that the thermistor is not placed into the mouth or eyes; keep away from children and pets. |
| 5. | Use of thermistors in the following conditions may degrade thermistor function or lifespan; the customer must make their own checks of performance and reliability:
Presence of corrosive gases, such as C12, NH3, SOx, NOx
Environment with high electric conductivity, such as electrolytes, water, saltwater, etc.
Presence of acids, alkalis or organic solvents
Dusty or dirty environments
When thermistors are resin sealed or resin coated
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| 6. | When disposing of thermistors, treat them as industrial waste and observe all applicable laws and regulations. |
| 7. | To minimize temperature measurement error, the heat sensing surface of the thermistor must be in direct contact with the object to be measured. |
| 8. | The thermistor must be kept away from condensate, dew, or other moisture. |
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NBFC-36-IT
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