Glass-Encapsulated Thermistors For Automotive and Industrial Applications

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Application Overview Ametherm’s DG series glass-encapsulated thermistors provide long-term stability and reliability for high-accuracy temperature sensing in automotive and industrial applications. Hermetically sealed, the thermistors eliminate errors in resistance readings due to moisture penetration, while offering high operating temperatures and a compact size. DG Series Application Benefits • Provide faster, more-accurate, and less-expensive alternatives to thermocouples and RTD probes • Free from limitations due to solder temperature, which enables them … Continue Reading

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Thermal Time Constant and NTC Thermistors: A Practical Study

Thermal time constant graph

The Relationship between Thermal Time Constant and Temperature Sensors In this article, we’ll break down the relationship between the thermal time constant and NTC thermistors. We’ll also cover the importance of selecting the right thermistor with characteristics that will produce the correct thermal time constant for your application. Further down in this article, we demonstrate one way to measure thermal time constant; running two tests, then present the results. What is Thermal … Continue Reading

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Temperature Sensors – Thermistors versus Thermocouples

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Temperature Sensors – Thermistors vs Thermocouples We Weigh the Pros and Cons of Each Type of Temperature Sensor Thermistors vs Thermocouples. They’re both good choices for temperature measurement and temperature control applications depending on your application requirements. For electrical engineers faced with the task of managing one or more temperature detection circuits, choosing the right temperature sensing device for a Printed Circuit Board (PCB) can be confusing. When you go … Continue Reading

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Calculate Inrush Current in Three Steps

Equations to Calculate Inrush Current

Why do I need to Use Inrush Current Calculators to Select an Inrush Current Limiter? An Inrush Current Limiter (ICL) can protect electrical equipment from overheating at switch-on due to inrush current. And, because inrush current equals the maximum instantaneous surge of incoming current from a power source, it can equate to as much as 2-3 times the steady state current of the attached device. So, Inrush Current Calculators are the … Continue Reading

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Thermistor – Temperature Detection Fire Alarm Example

NTC thermistors for temperature detection

Thermistors serve a crucial role in temperature detection. For example, thermistor temperature detection can be used in fire alarms to detect fires based on a sudden change in temperature. Unlike photoelectric detectors or ionization alarms, thermistors only require heat to activate. Thermistors are temperature-sensing elements made of semiconductor material that displays large changes in resistance in proportion to small changes in temperature. Photoelectric and Ionization Fire Alarms The photoelectric detector requires heavy smoke … Continue Reading

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Alternative Energy Applications for MS35 Inrush Current Limiters

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Application Overview Ametherm’s MS35 series inrush current limiting thermistors play a key role in alternative energy applications by avoiding current spikes in the power generated by wind turbines, solar panels, and other sources as it’s fed into batteries, inverters, and other energy storage components. The MS35 devices are also used to regulate the release of battery energy in electric vehicles and in pre-charge circuits for many different types of battery … Continue Reading

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Toroidal Transformer Inrush Current Issues Got You Down? We’ve Got the Answer

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What You Need to Know About Toroidal Transformer Inrush Current Toroidal Transformer Inrush Current can cause some serious damage if not appropriately managed. Inrush current can cause circuit breakers to trip and fuses to blow. Additionally, it can cause a complete failure of the transformer itself. And if that weren’t enough to give you a headache, excessive inrush current can also limit the total number of devices which can be … Continue Reading

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The Secret To Successful Thermistor Beta Calculations

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What Do Rt1, Rt2, t1, and t2 Have In Common? They are the main components of Thermistor Beta Calculations as it relates to temperature measurement, compensation, and control. And if you are an engineer in an industry such as automotive or HVAC where things like coolant and air intake temperatures are crucial to the safety and performance of a vehicle or unit, chances are you will deal with beta calculations … Continue Reading

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How to Limit DC Motor Inrush Current

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Choosing An Inrush Current Limiter To Preserve Your DC Motor So, what does an Inrush Current Limiter have to do with DC motor inrush? More than you may think. DC motor inrush is the maximum, instantaneous input current drawn by the DC motor when first turned on and it is important to know how to limit the inrush current to prevent possible damage to the motor. A DC motor converts electrical energy … Continue Reading

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NTC Thermistors Used In Tesla Hyperloop Pod

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Award-Winning Hyperloop Pod Uses NTC Thermistors A team of engineers use NTC thermistors in their design for a high-speed transportation pod.  The thermistors accurately sense temperatures and create a map of the application’s heat. Teslarati recently conducted an interview with members of the Badgerloop team, 3rd-place winners of SpaceX’s Hyperloop Pod design competition in January.  The Hyperloop is Tesla CEO Elon Musk’s “fifth mode” of transportation where passengers in a … Continue Reading

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