10K Precision Epoxy Thermistor (3950 NTC)

This 10K Precision 1% Thermistor provides temperature sensing in damp environments and liquids, with an epoxy-coated sensor, 1% resistance tolerance and PVC-insulated wires rated up to 105°C.

Need to measure something damp? This Adafruit epoxy-coated precision 1% 10K thermistor is an inexpensive way to measure temperature in weather or liquids. The resistance in 25 °C is 10K (+- 1%). The resistance goes down as it gets warmer and goes up as it gets cooler. For specific temperature-to-resistance, check the lookup table.

These are often used for air conditioners, water lines, and other places where they can get damp. The PVC coating of the wires is good up to 105°C so this isn't good for very hot stuff.

We even toss in an additional 1% 10K resistor which you can use as calibration or for a resistor divider.

Features

• Epoxy-coated 1% 10K thermistor for damp environments
• Resistance of 10K Ω at 25 °C (±1% tolerance)
• Resistance decreases with increasing temperature
• Resistance increases with decreasing temperature
• PVC-coated wires rated to 105 °C maximum
• Suitable for weather stations, air conditioning systems, and water line monitoring
• Includes bonus 1% 10K Ω calibration resistor
• Compatible with resistor divider circuits

Specifications

• Resistance at 25 degrees C: 10K +- 1%
  
• B25/50 = 3950+- 1%
  
• Thermal time constant <= 15 seconds
  
• Thermistor temperature range -55 °C to 125 °C
  
• 28 AWG PVC Wire
  
• Dimensions:
  
  • Diameter: 0.13”/ 3.3mm
    
  • Length: At least 457mm / 18" long

Resources

• Tutorial
• Lookup table in text format

Package Contents

• 1x 10K Precision Epoxy Thermistor (3950 NTC)
  • 1x 1% 10K Ω calibration resistor