Leaded NTC Thermistors

North Star Sensors leaded NTC thermistors are available in a variety of R/T curves, R25 values, temperature tolerances, and lead configurations. Leaded NTC thermistors are noted for their fast time response and ruggedness. They are the one of the most cost-effective and versatile temperature sensor available for the temperature range of -50 °C to 150 °C.

Datasheets:

3XT Micro NTC Thermistor - 38 AWG insulated leads, 0.023” max bead diameter

4XT Mini NTC Thermistor - 38 AWG insulated leads, 0.037” max bead diameter

1AE NTC Thermistor - 30 AWG bare tin-plated copper leads, 0.095” max bead diameter

2AE NTC Thermistor - 30 AWG solid silver-plated copper, Teflon-insulated leads, 3" L

. . . All Datasheets

Features:

Standard, mini, and micro size thermistors available.
Nine industry standard R/T Curves available
Uninsulated and insulated leads are available.
Standard lead lengths from 3 inches to 12 inches.
Epoxy coating or an epoxy/polymer tube are the most popular encapsulations. Depending on a number of factors, the final maximum O.D. of the leaded NTC thermistor will typically range from 0.110 inches to 0.023 inches.
R25 values range from 100 Ω to 100,000 Ω
Point-matched tolerances from ±10%, ±5% to ±2%
Standard interchangeable temperature ranges from -20 °C – 50 °C, 0 °C to 70 °C, and 0 °C to 100 °C.
Interchangeable temperature tolerances from ± 1.0 °C to ± 0.05 °C are available

Consult factory for custom NTC thermistor requirements

Uninsulated leads: NTC thermistors with uninsulated leaders are one of the industry’s most typical and most versatile NTC thermistor configurations. They are suitable for mounting on PC boards or potting inside temperature housings. Their small size, low cost, ruggedness, and sensitivity to changes in temperature make them the ideal choice for applications in the range of -50°C to +150°C.

Here are a few examples of uninsulated leaded NTC thermistors:

  
    Part Number
    25 °C Ω 
    Curve
    Electrical Tolerance
    Lead
    Thermistor Coating
    Max OD
  

    1AE103R44T1A
    10,000 Ω 
    44
    0.1 °C from 
0 °C to 70 °C
    30 AWG, 2" 
tin-plated copper
    Epoxy
    0.095"
  

    1CE303R43T2A
    30,000 Ω 
    43
    0.2 °C from 
0 °C to 70 °C
    32 AWG, 3" 
tin-plated copper
    Epoxy
    0.095"
  

    1BE101R38P2A
    100 Ω 
    38
    2% resistance at 25 °C
    28 AWG, 2" 
tin-plated copper
    Epoxy
    0.150"
  

Go to page How to Select an NTC Thermistor for more explanation on part number codes.

Insulated Leads: NTC thermistors with insulated leads are an excellent option for simplifying subsequent assembly steps using NTC thermistors as components. This can lower the assembly costs while also reducing potential points of failure such as unwanted electrical contact to a housing. Additionally, using insulated leads may increase the assembly’s overall ruggedness and ability to withstand various environmental conditions.

Here are a few examples of insulated, leaded NTC thermistors:

  
    Part Number
    25 °C Ω
    Curve
    Electrical
Tolerance
    Insulated Lead
    Thermistor Coating
    Max OD
  

    2AE103R44T1A
    10,000 Ω 
    44
    0.1 °C from
0 °C to 70 °C
    30 AWG, silver-plated copper, 
Teflon insulation, 3" L
    Epoxy
    0.095"
  

    3AT103R44T2A
    10,000 Ω 
    44
    0.2 °C from
0 °C to 70 °C
    38 AWG Ni bifilar,  
heavy polyesterimide insulation, 3" L
    Epoxy in 
polyimide tube
    0.023"
  

    2DE303R43T2A
    30,000 Ω 
    43
    0.2 °C from
0 °C to 70 °C
    28 AWG, silver-plated  copper,
Kynar insulation, twisted pair, 3" L
    Epoxy
    0.095"
  

    3CT303R44T1A
    30,000 Ω 
    44
    0.1 °C from
0 °C to 70 °C
    38 AWG Ni bifilar,  
heavy polyesterimide insulation, 3" L
    Epoxy in 
polyimide tube
    0.037"
  

Go to page How to Select an NTC Thermistor for more explanation on part number codes.