It is a type of resistor that has the capacity to take electrical energy and convert this energy into heat and protects the circuit components by effectively dissipating the excess heat generated during this conversion.
In the event that the electrical load increases or the circuit operates without a certain restriction, overheating can be observed in some circuit elements. This excessive heat can accumulate on the resistors and cause damage to the circuit.
At this point, cooling resistors come into play to protect the circuit and components.
Heatsink resistors are often used in electrical and electronic applications with high power requirements. These resistors are designed to effectively dissipate the heat generated during the passage of high currents. Choosing a correct heat sink resistor directly affects the efficiency, safety and lifetime of the system. So, how to choose a heatsink resistor? Here is your step-by-step guide:
Firstly, you need to know the maximum power rating your system requires. Heatsink resistors are usually rated in watts. The rated power of the resistor is the maximum power it can continuously handle. Operating the resistor above this rating can cause overheating and damage to the component.
The resistor operates at maximum efficiency at a certain temperature. Not exceeding this temperature value prolongs the life of the resistor. The air flow in your system affects the cooling capacity of the resistor. Therefore, choose by considering the temperature values of the environment to be used.
Resistance value is expressed in Ohms. Carefully review the circuit schematic and design criteria to determine the appropriate resistor value for the needs of your circuit.
Select the size of the resistor taking into account the limitations of the space to be used. The physical size is usually directly related to the heat dissipation capacity of the heat sink resistor.
Heatsink resistors are usually made of heat-resistant materials such as metal or ceramics. The quality of the material affects how effectively the resistor dissipates heat.
Soğutuculu dirençler, genellikle yüksek enerji ihtiyaçlarına ve aşırı ısı üretimine sahip sistemlerde kullanılır. Bu tür dirençler, enerjinin bir kısmını ısı enerjisi olarak dağıtarak sistemleri koruma ve kontrol altında tutma görevini üstlenir. İşte soğutuculu dirençlerin en yaygın uygulama alanları:
Cooled resistors provide protection of motors from overcurrents in industrial motor control systems. Especially when the motors need to be stopped quickly, these resistors prevent damage to the motor by converting the energy into heat in the braking process.
In high power transformers, inverters and converters, cooled resistors stabilise circuits and help dissipate excess energy as heat.
In renewable energy systems, due to the fluctuating energy production, cooled resistors ensure a balanced distribution of energy and prevent overloading of the systems.
In electric trains and trams, the energy generated during deceleration or stopping is converted into heat energy through cooled resistors to prevent damage to the system.
In backup power supplies, cooled resistors in response to load changes ensure balanced operation of the system and minimise the negative effects of sudden current fluctuations.
Cooled resistors simulate the load in test and measurement devices and check whether the devices are working correctly.
Cooled resistors, one of the indispensable components of electrical and electronic applications, are specially designed to meet high energy requirements. These resistors effectively dissipate high energy loads, preventing excessive heat generation and enabling systems to operate more efficiently. In this article, we will take a detailed look at the main technical features and specifications of cooled resistors.
When choosing a heatsink resistor for use in your electrical and electronic projects, it is critical for the efficiency and safety of your application to consider the technical features and specifications mentioned above. A correct choice both increases energy efficiency and minimises possible failures.
| Watt(W) | Large(L) | Diameter(D) |
| 20-25W | 60mm | 16mm |
| 30-40W | 60mm | 16mm |
| 50-60W | 90mm | 20mm |
| 75W | 120mm | 25mm |
| 100W | 170mm | 25mm |
| 150W | 170mm | 30mm |
| 200W | 240mm | 30mm |
| 250W | 240mm | 36mm |
| 300W | 300mm | 36mm |
| 400W | 350mm | 40mm |
| 500W | 500mm | 50mm |
| 600W | 500mm | 55mm |
| 750W | 500mm | 65mm |
| 1000W | 500mm | 85mm |
The resistor dimensions in this table represent standard resistors. Special resistor manufacturing other than these resistors is put into the production stage by our company. Special resistors are produced in different diameters, lengths and different wire winding requests.
