NORTH STAR SENSORS

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Leaded NTC Thermistors

Leaded NTC thermistors with insulated and uninsulated leads

North Star Sensors leaded NTC thermistors are available in a variety of R/T curves, R25 values, temperature tolerances, and lead configurations.

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Fast and rugged

Leaded NTC thermistors are known for fast time response and dependable performance from -50 °C to 150 °C.

Multiple package sizes

Micro, mini, rigid probe-ready, and standard thermistor styles are available across several lead constructions.

Cost-effective sensing

They are among the most versatile and economical temperature sensing options for production designs.

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.

Leaded NTC thermistors are available with insulated or uninsulated leads, a range of coatings and encapsulations, and a wide spread of R25 values from 100 Ω to 100,000 Ω. Epoxy coatings and epoxy / polymer tube constructions are common because they balance environmental protection with response time.

If you need help choosing the right family, North Star Sensors can help you balance dimensions, lead style, tolerance, and curve selection for your application.

Key Details

  • 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 to 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

Uninsulated leaded NTC thermistor

NTC thermistors with uninsulated leads 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

Insulated leaded NTC thermistor

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.