In the actual application of TEC (thermoelectric cooling sheet), we often receive questions from customers: "After installing the cooling device, why is the temperature difference so small?" "The measured resistance doesn't match the specifications. Could it be that there is something wrong with the product?" After extensive project support and on-site analysis by the FerroTec lead thermoelectric technology team, it was discovered that - the vast majority of these problems do not stem from the quality defects of the TEC itself, but rather from deviations in the testing methods or installation procedures. This article will, based on common cases, systematically clarify the typical misunderstandings of clients in TEC testing, helping everyone to assess product performance more scientifically and accurately.  I. Common Causes of TEC Resistance De...

Professional drones often need to operate in harsh environments with high temperatures, high humidity, high altitudes, and sandstorms—whether inspecting high-voltage power grids or conducting nighttime reconnaissance, they place extremely high demands on the stability of their onboard electronic systems. So how do these precision electronic components overcome harsh environments and maintain stable operation? The answer lies in this key temperature control technology—thermoelectric cooling (TEC). I.What is thermoelectric refrigeration technology? Imagine this: you have a small cooling plate in your hand. As soon as you connect it to a power source, one side immediately cools down, while the other side starts to heat up. This principle was discovered as early as 1834 by the French physicist Jean Charles Peltier and named the Peltier effect: when direct current ...

In the southern sky, during the rainy season or in the high humidity environment on the coast, a lot of water is constantly appearing in the opening of the tower, the performance of the connection is completely decreased, the secondary terminal is closed, and the operation or jumping accident occurs. We usually use kiln heaters, compressor type dehumidifiers, silica dryers, etc. to develop dehumidifying methods. However, this is a trivial method, and the book is incurable. Introducing a new dehumidification method with long-lasting internal drying: The introduction is TEC dehumidification technology. I. Is the dehumidification method not effective? Electric heating device: Heats up moisture and “steams” it. The inside of the tank is dry and dry, and the internal circulation of the water tank is actually there. Once cooled down, the water steamer will undergo hea...

Endoscopes are essential diagnostic and treatment devices in minimally invasive surgery. However, when the surgery reaches a critical stage, the images may suddenly become blurry, reddish, or even noisy—these problems are not caused by endoscope malfunction, but by the lens overheating. To control its internal temperature, a thermoelectric cooler (TEC) can be placed inside the endoscope, which is less than 5 millimeters in diameter. This keeps the temperature within a stable operating range, preventing the endoscope from fogging and avoiding surgical errors caused by blurred images. I.Why do endoscopes fog up easily? Endoscopes are typically inserted directly into the human body from room temperature. Because the lens surface is relatively cold, moisture quickly condenses into fog upon contact with the warm, humid air inside the body—similar to how glasses fog up w...

In a dental clinic, you might see a dentist holding a laser handpiece, precisely cutting through the gums, removing cavities, or whitening teeth with a gentle touch. Compared to the tension caused by the buzzing of traditional drills, laser treatment is virtually painless, involves less bleeding, and has a quick recovery, and is now widely used in many high-end clinics. Inside these laser handpieces is a small thermoelectric cooler (TEC). Its compact size and quiet operation provide stable and precise temperature control for the laser, ensuring safe, reliable, and efficient treatment every time.   I. What problems arise from the heat generated by the laser treatment handpiece? Dental laser devices generate heat rapidly during operation; the core laser diode's temperature can spike to over 60°C within seconds when emitting a high-energy beam. Therefore, if the laser c...

Welcome to the TEC Science Corner! In fields such as precision electronics, optical communications, and industrial refrigeration, thermoelectric coolers (TECs) are the key components for temperature control. However, a crucial but often overlooked element in the manufacturing process of thermoelectric coolers is the solder. It not only affects the thermal conductivity of the cooler element but also directly impacts the reliability and lifespan of the device. In this lesson, we'll introduce commonly used TEC solders and their characteristics in detail. If you have any questions about the article or want to learn more about TECs, feel free to leave a comment below!   I. Structure and Applications of Solder TEC solder is located at the junction of the semiconductor and the electrode. Although used in small quantities, its role is significant.&...

As optical communication speeds continue to increase, the requirements for device temperature control are also becoming more stringent. To address these challenges, a new solution has emerged: an integrated packaging solution that deeply integrates the thermoelectric cooler (TEC) with the TO package. This solution directly integrates the TEC within the TO coaxial package, significantly improving heat dissipation efficiency while effectively optimizing space layout. It overcomes the limitations of traditional packaging, enabling optical communication devices to develop towards higher speeds and smaller sizes.   I. Technical Background: Bottlenecks and Challenges of Traditional Packaging Traditional optical module packaging uses a separate design, with the TEC and TO housing assembled as independent components. This "split" design has many problems: 1. The...

Driven by the rapid development of 5G communication, artificial intelligence and the Internet of Things, electronic devices are constantly evolving towards smaller, more compact and higher performance.Under this trend, the miniaturization of thermoelectric coolers has become an inevitable direction for industry development. This episode of Xiaocool will take you through the material, technological, and process challenges brought about by the miniaturization of thermoelectric coolers. I. Challenges Brought by the Miniaturization of Thermoelectric Coolers Microthermal condensers (TECs) are typically smaller than a fingernail (less than 5×5mm). Their interiors consist of numerous alternating P-type and N-type semiconductor particles, connected in series and parallel, much like "microcircuits," and soldered between two ceramic plates. As TEC sizes continue to sh...

TEC hot and cold cup holders have recently become a favorite among many office workers and car owners: place a coffee cup on it, and it starts heating at a constant temperature; put in a water bottle, switch to cooling mode, and you can have a cold drink in minutes. Its ability to both cool and heat isn't due to a complex mechanical structure, but rather a seemingly inconspicuous thermoelectric cooling element. This article will explain the principle of thermoelectric cooling, showing you how TEC hot and cold cup holders bring convenience to daily life and in which scenarios they are suitable for use. I.Working principle of TEC hot and cold cup holders The working principle of TEC (Thermoelectric Cooling) hot and cold cup holders is based on the Peltier effect: when a direct current passes through a thermocouple composed of P-type and N-type semiconductor materials,...

In recent years, the VR/AR industry has reached new heights: headsets are becoming increasingly lightweight, displays are becoming increasingly high-definition, and chip performance is constantly improving… However, no matter how the hardware is upgraded, one old problem remains unresolved—overheating. Most VR users are well aware that wearing a headset for extended periods can cause cheek heat, forehead sweating, frame drops, and even stuttering. The root cause is that the internal heat dissipation capacity cannot keep up with the performance improvements. Today, we will discuss the topic of "VR heat dissipation" and explore the application potential of thermoelectric cooling technology in this industry.   Why do VR headsets tend to overheat? VR headsets seem simple in structure—two displays, a high-performance processor, and various sensors are...