Leadless NTC Thermistors
North Star Sensors chip thermistors may be mounted on hybrid integrated circuits, integrated circuits, or printed circuit boards by conductive epoxy bonding or by soldering.
Learn More Helping you navigate the world of sensors
North Star Sensors is an NTC thermistor manufacturer that delivers high quality, competitively priced temperature sensors and temperature probes. Because thermistor specifications can sometimes be unclear or even confusing, we help customers focus on what matters for their applications and guide them toward the optimal temperature solution.
Over 100 years of collective experience
The North Star Sensors management team brings more than 100 years of collective experience engineering, manufacturing, assembling, and selling NTC thermistors. That practical knowledge helps engineers and purchasing teams choose the right product, tighten specifications, and move confidently toward a cost-effective temperature solution.
Meet Our TeamProducts
Learn More Leaded NTC Thermistors
Leaded NTC thermistors are noted for their fast response and ruggedness. They are one of the most cost-effective and versatile temperature sensors available for the range of -50 C to 150 C.
Learn More Thermistor Probes
A temperature probe housing is designed to protect the sensor from environmental conditions while also optimizing overall sensor performance.
Learn More Custom Temperature Products
Given the wide range of temperature-sensing applications, many customers do not find an off-the-shelf answer for every requirement. North Star Sensors works with customers and prospective customers to identify the best solution for the application, from custom assemblies to tightly specified sensor packages.
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How to Select an NTC Thermistor
NTC thermistors are rugged ceramic semiconductors manufactured from metal oxide compositions. Each composition defines the thermistor dimensions, R/T curve, and resistance at 25 C. Our resource pages help you sort through those variables and choose a part with confidence.
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Applications
Temperature matters in a wide variety of industries. North Star Sensors supplies thermistors and temperature probes for applications that need reliability, repeatability, and compact sensor packages.
Medical Devices
Small, tight-tolerance products are especially well suited for medical and biomedical sensing applications.
- Kidney dialysis
- IV blood warmers
- Disposable temperature catheters
- Respirators
- NICU incubators
- Blood chemistry
- Blood oxygenators
Weather & Environmental
Thermistors support long-running monitoring systems that need dependable measurements in changing conditions.
- Land stations
- Air balloons
- Ocean buoys
- Water quality
Data Center & Communications
Compact thermistors fit tightly constrained electronics where thermal protection and compensation are essential.
- Hard drive and circuit over-temp protection
- Power supplies
- Temperature compensated crystal oscillators
- Fiber optic networks
- Battery packs
Aerospace & Satellites
Precision temperature sensing helps maintain performance and reliability across critical aerospace and orbital systems.
- Satellites
- Missiles
- Altimeters
- Cabin climate control
- Fire control
Equipment
Thermistors support rugged sensing and equipment protection in demanding off-road and industrial environments.
- Electronic engine control
- Hydraulic fluid temperatures
- Climate control
- Bearing over-temp protection
- Cooling system monitoring
"Thermistor specifications can sometimes be unclear or confusing. We help customers focus on what matters and move toward the optimal temperature solution."
North Star Sensors
Helping you navigate the world of sensors
Technical Resources
Reference pages and downloads that support selection, specification, and integration across the NSS product catalog.
Selection Guide
How to Select an NTC Thermistor
Start with resistance, tolerance, beta values, and packaging choices so the device matches your application.
ExploreEngineering Note
Calculating Temperature from Resistance
Use practical conversion methods and standard equations to move from measured resistance to temperature.
ExploreReference
Temperature Curves
Review resistance-versus-temperature behavior and compare the operating ranges designers use most often.
ExploreDownloads
Datasheets
Browse local leadless, leaded, probe, and micro-thermistor datasheets without leaving the Astro site.
ExploreFrom The Blog
Application notes, tutorials, and field stories
The latest writing from North Star Sensors, now integrated into the Astro site as editable Markdown content.
The North Star Sensors Micro Probe Quick Response Advantage
See how a 0.032-inch micro probe can cut thermistor time response dramatically compared with a standard 0.125-inch probe.
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From Cardio to Cannabis
A look at how micro thermistors evolved from cardiac surgery probes into modern photonics, agriculture, and life-science applications.
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Supply Chain Management in Times of Uncertainty
North Star Sensors explains how the AURA framework helps design a more resilient thermistor supply chain during uncertainty.
Read ArticleStart your next temperature solution
Need help selecting a sensor, customizing an assembly, or gathering the right documentation? We will help you navigate the next step.