Insulated Lead Interchangeable Chip Thermistor

Sensor Scientific KWM Series interchangeable wafer thermistors combine a high-accuracy thermistor with a tough insulated lead. The Kynar lead insulation offers many of the advantages of Teflon insulation with a lower cost. Interchangeability eliminates the burden of individual calibration. Units are available in resistance values from 2k ohms to 100k ohms @ 25°C. The available resistance vs. temperature curves (SSi curves C, D, E & Y) are industry-standard. If a standard unit does not meet your needs, customized tolerances, resistance values, temperature ranges, and termination options are available. Design assistance is also available.


Options:

  • LONGER OR SHORTER LEAD LENGTHS
  • TERMINATION TYPE
  • NON-STANDARD TOLERANCES
  • VALUE ADDED CUSTOM PROBE ASSEMBLIES

Specifications:

  • OPERATING TEMPERATURE RANGE: -40°C TO 125°C (INTERCHANGEABILITY MAY DEGRADE IF USED ABOVE 70 DEG. C)
  • INTERCHANGEABILITY RANGE: 0 TO 70 DEG. C.
  • THERMAL TIME CONSTANT: 10 SECONDS TYP. IN STILL AIR
  • DISSIPATION CONSTANT: 1.5 mW/°C
Resistance
@ 25 Deg C
ohms
PART NUMBER R. vs. Temp.
Curve
±0.2 Deg C
tolerance
±0.5 Deg C
tolerance
±1.0 Deg C
tolerance
2000 KWM202C KWN202C KWP202C C
2252 KWM222C KWN222C KWP222C C
3000 KWM302C KWN302C KWP302C C
4000 KWM402C KWN402C KWP402C C
5000 KWM502C KWN502C KWP502C C
10000 KWM103C KWN103C KWP103C C
10000 KWM103Y KWN103Y KWP103Y Y
30000 KWM303D KWN303D KWP303D D
30000 KWM303E KWN303E KWP303E E
50000 KWM503D KWN503D KWP503D D
100000 KWM104D KWN104D KWP104D D

RESISTANCE VS. TEMPERATURE MULTIPLIERS (PDF)

RESISTANCE VS. TEMPERATURE TABLES

Click on the part number to download a resistance vs. temperature chart in PDF format

WM202C WN202C WP202C WM222C WN222C WP222C WM302C WN302C WP302C
WM402C WN402C WP402C WM502C WN502C WP502C WM103C WN103C WP103C
WM103T WN103T WP103T WM103Y WN103Y WP103Y WM303D WN303D WP303D
WM303E WN303E WP303E WM503D WN503D WP503D WM104D WN104D WP104D

"The information contained herein is believed to be accurate. The user, however, should verify the suitability of a particular product for a specific application. Sensor Scientific, Inc. does not warrant the accuracy of this information, and disclaims any liability with respect to its use"

Thermistors