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Thermostats, thermoregulators, thermal fuses, thermal protection

Thermostats, thermoregulator or thermal fuses are temperature dependent devices, switch dependent, heating or cooling devices that resets when the temperature reaches the prescribed threshold. They provide protection for the equipment that dissipate considerable amount of heat from the surface. They can be re adjusted manually or automatically. When automatic method is involved, the thermostat is restored back to the original position once the device cools down, while the manual method involves human intervention to restore the thermostat to the original position. 

The most active component in thermostats is that it contains bi-metallic plate, which deforms when heated and activates or deactivates certain contacts and hence regulating the temperature. 

In thermodynamics the thermostat should operate in such a way that it should have an endurance to large heat while keeping its own temperature constant without change. Depending on the range of operating temperature its divided into three 

  • High temperature thermostat (300°C- 1200°C) 
  • Medium temperature thermostat (60°C- 500°C) 
  • Cryostats or low temperature thermostat (lower than -60°C) 

According to their area of usage again they are divided into three 

  • Immersion thermostats 
  • Industrial thermostats 
  • Air thermostats 

Depending on the coolant they are divided into 

  • Air thermostats 
  • Liquid thermostats 
  • Solid state thermostats (Peltier element or bimetal) 

 

Capillary Thermostat: The most common type of thermostat with two enclosed contacts & manual restorability. The main parameters considered while selecting the thermostat is the operating temperature, length of probe and length of contact part of the probe. It is also important to take into consideration the electrical load too. 


Bimetallic protectors with ceramic and plastic housing are used in hot water boilers. They are non-restorable and if they are manually restorable the number of activation cycles are smaller. It represents a relay which can quickly and easily be replaced when burned out. 

Thermal fuses are temperature dependent & non restorable and contains a small sphere made of fusible material and spring. When the temperature limit is reached the sphere melts and the spring comes out, disconnecting the normally closed contact and discontinuing the circuit. The size of the nominal current and thermal component of the electric current needs to be taken into considered. 

Thermal fuses are used in appliances that work above the nominal temperature like hair dryers, coffee makers etc. They mostly depend on the temperature change and doesn’t respond to sudden peak in current. 

Thermal protection is an important component of electrical circuits. It protects the appliance from overheating, melting and explosion. So thermal protection components should be selected carefully and if they are non-restorable, they should be checked and restored on time for ultimate protection. 

The Future of IoT: Trends and Predictions for the Next 5 Years

By Swetha Parvathy • February 24, 2025
The Internet of Things (IoT) has revolutionized the way we live and work, connecting billions of devices and transforming industries. As we look to the future, it's clear that IoT will continue to play a major role in shaping our world. In this blog, we'll explore the top trends and predictions for the IoT industry over the next five years. Trend 1: Increased Adoption of Edge Computing Edge computing is a distributed computing paradigm that brings data processing closer to the source of the data, reducing latency and improving real-time decision-making. As IoT devices become more widespread, edge computing will become increasingly important for processing the vast amounts of data generated by these devices. Trend 2: Growing Importance of Artificial Intelligence (AI) and Machine Learning (ML) AI and ML will play a crucial role in the future of IoT, enabling devices to learn from their environment and make decisions autonomously. This will lead to increased efficiency, productivity, and innovation across various industries. Trend 3: Expansion of IoT into New Industries IoT is no longer limited to traditional industries like manufacturing and logistics. Over the next five years, we can expect to see IoT adoption in new industries such as: - Healthcare: IoT will enable remote patient monitoring, personalized medicine, and improved healthcare outcomes. - Agriculture: IoT will optimize crop yields, reduce waste, and improve supply chain efficiency. - Smart Cities: IoT will enable cities to become more efficient, sustainable, and livable. Trend 4: Increased Focus on Security and Privacy As IoT devices become more ubiquitous, security and privacy concerns will become increasingly important. We can expect to see a greater emphasis on secure-by-design principles, encryption, and secure data storage. Trend 5: Advancements in Wireless Communication Technologies Wireless communication technologies like 5G, Wi-Fi 6, and Bluetooth 5 will continue to evolve, enabling faster data transfer rates, lower latency, and greater connectivity. Prediction 1: IoT Devices Will Exceed 50 Billion by 2025 The number of IoT devices is expected to grow exponentially over the next five years, driven by increasing demand for smart home devices, wearables, and industrial IoT solutions. Prediction 2: IoT Will Drive Business Model Innovation IoT will enable new business models, such as product-as-a-service, data-driven services, and subscription-based models. Companies that adopt IoT will need to rethink their business strategies to remain competitive. Prediction 3: IoT Will Improve Sustainability and Reduce Carbon Footprint IoT will play a critical role in reducing carbon emissions and improving sustainability. By optimizing energy consumption, reducing waste, and improving supply chain efficiency, IoT will help companies meet their sustainability goals. Conclusion The future of IoT is exciting and rapidly evolving. Over the next five years, we can expect to see increased adoption of edge computing, AI, and ML, as well as expansion into new industries. As IoT continues to transform industries and improve our lives, it's essential to stay informed about the latest trends and predictions. By doing so, we can unlock the full potential of IoT and create a more connected, efficient, and sustainable world.

A Guide to Choosing the Right Inductors for Your Circuit

By Swetha Parvathy • February 13, 2025
Inductors are a crucial component in electronic circuits, playing a vital role in filtering, impedance matching, and energy storage. With so many types of inductors available, selecting the right one for your circuit can be a daunting task. In this guide, we'll walk you through the key factors to consider when choosing an inductor, helping you make an informed decision for your design. Understanding Inductor Types Before diving into the selection process, it's essential to understand the different types of inductors available: 1. Air Core Inductors: These inductors have no magnetic core and are often used in high-frequency applications. 2. Ferrite Core Inductors: Ferrite core inductors use a magnetic core to increase inductance and are commonly used in power supplies and filters. 3. Iron Core Inductors: Iron core inductors use a magnetic core made of iron and are often used in high-current applications. 4. Toroidal Inductors: Toroidal inductors have a doughnut-shaped core and are used in applications where a high inductance value is required. 5. Chip Inductors: Chip inductors are surface-mount devices that offer high inductance values in a small package. Key Factors to Consider When selecting an inductor, consider the following factors: 1. Inductance Value: Choose an inductor with the correct inductance value for your application. Inductance values range from a few nanohenries (nH) to several henries (H). 2. Current Rating: Select an inductor that can handle the maximum current required by your circuit. 3. Frequency Range: Choose an inductor that operates within the frequency range of your application. 4. DC Resistance: Consider the DC resistance of the inductor, as it can affect the overall efficiency of your circuit. 5. Physical Size: Select an inductor that fits within the physical constraints of your design. 6. Temperature Range: Choose an inductor that operates within the temperature range of your application. 7. Cost and Availability: Consider the cost and availability of the inductor, as well as any potential lead-time issues. Additional Considerations 1. Saturation Current: Be aware of the saturation current of the inductor, as it can affect the overall performance of your circuit. 2. Shielding: Consider the shielding requirements of your inductor, as it can affect the overall electromagnetic compatibility (EMC) of your design. 3. Mounting: Select an inductor with a suitable mounting option, such as through-hole or surface-mount. Conclusion Choosing the right inductor for your circuit requires careful consideration of several factors. By understanding the different types of inductors available and considering key factors such as inductance value, current rating, and frequency range, you can select the optimal inductor for your design. Remember to also consider additional factors such as saturation current, shielding, and mounting to ensure the best possible performance. Recommended Products - Ferrite Core Inductors: Our ferrite core inductors offer high inductance values and are suitable for a wide range of applications. - Chip Inductors: Our chip inductors are surface-mount devices that offer high inductance values in a small package. - Toroidal Inductors: Our toroidal inductors have a doughnut-shaped core and are used in applications where a high inductance value is required.
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