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Tel sarımlı wattlı dirençler, yüksek güç gereksinimlerini karşılamak üzere tasarlanmış, metalden yapılmış ince tellerin yalıtkan bir çekirdek etrafına dikkatlice sarılmasıyla üretilen direnç türleridir. Bu dirençlerin tasarımında kullanılan telin türü, genellikle direncin genel özelliklerini ve performansını doğrudan etkileyen bir faktördür.

Watt değeri, direncin ne kadar enerjiyi sürekli olarak işleyebileceğini belirtir. Bu nedenle, “wattlı” terimi bu dirençlerin yüksek enerji kapasitelerine sahip olduğunu vurgulamaktadır. Tel sarımlı yapısı, elektriksel direnci artırarak, devredeki akımın belirli bir seviyede kalmasını sağlar. Aynı zamanda, bu yapı, direncin homojen bir ısı dağılımı sağlayarak aşırı ısınmasını önler.

Yalıtkan çekirdek, genellikle sıcağa dayanıklı malzemelerden yapılır, bu da tel sarımlı wattlı direncin yüksek sıcaklık dalgalanmalarına karşı dayanıklı olmasını sağlar. Ayrıca, bu çekirdek, teli fiziksel darbelere karşı korur ve elektriksel izolasyon sağlar.

Wire Wound Wattage Resistor Types

Wire wound wattage resistors are a type of resistor commonly used in electronic circuits. These resistors are especially preferred in high power applications. So, what are the types of these resistors?

1. Open Wire Wound Resistors

In this type of resistor, there is no protective layer covering the resistance wire. This ensures fast heat dissipation. However, they are more vulnerable to external factors.

2. Closed Wire Wound Resistors

These resistors, which are more resistant to external factors, are coated with a protective material. They are generally preferred in high temperature applications.

3. Adjustable Wire Wound Resistors

This type of resistor allows the resistance to be adjusted within a certain range. The user can set the resistance to the desired value.

Surface Mount Wire Wound Resistors

These resistors mount directly onto modern circuit boards and take up minimal space.

High Power Wire Wound Resistors

Designed for high current applications, these resistors are generally preferred in industrial applications.

Wire Wound Wattage Resistor Uses

Wire wound wattage resistors play an important role in the world of electronics. Considering their high energy capacity and durability, there is a wide range of where these resistors are used. So, what are the main uses of wire wound wattage resistors?

1. Industrial Applications

These resistors are commonly used in motor control units, load balancing and power distribution systems. They are ideal for providing stability in high energy circuits.

2. Audio Equipment

Wire wound wattage resistors can often be found in audio amplifiers and speaker systems. These resistors are used to optimize sound quality.

3. Power Supplies

It is possible to see the presence of these resistors in AC/DC converters, chargers and regulators. They play an effective role in current limiting and energy conversion.

4. Heating Systems

These resistors can also be used as heating elements. They are especially preferred in industrial ovens and heating devices.

5. Test and Measurement Equipment

In test instruments with high accuracy requirements, wire wound wattage resistors provide stability and precision.

6. Automotive Industry

It is possible to find such resistors in vehicle electronic systems, especially in engine control units.

Working principle of Wire Wound Watt Resistors

In electronic and electromechanical systems, resistors are essential components for the control and management of energy. In this context, wire wound wattage resistors occupy a special place. But how do these resistors work? Here’s what you need to know about the working principle of wire wound wattage resistors:

1. Principle of Electrical Resistance

Wire wound wattage resistors work by creating a resistance to the passage of electric current. This resistance is determined by the material, dimensions and configuration of the resistor.

2. Ohm’s Law

The working principle of resistors is based on Ohm’s Law. In wire wound wattage resistors, the relationship between voltage (V) and current (I) is determined by resistance (R): V = I x R.

3. Heat Generation

When electric current passes through a wire-wound watt resistor, energy is lost due to the resistance. This energy loss is radiated as heat to its surroundings. This feature is used to advantage in certain applications.

4. Watt Capacity

The watt capacity of these resistors indicates how much energy can be converted into heat. This value can vary depending on the size, material and construction of the resistor.

Durability and Lifetime of Wire Wound Wattage Resistors

Wire wound wattage resistors, one of the indispensable components of electrical and electronic systems, stand out with their performance and durability. But how durable are these resistors and how long do they last? Here’s what you need to know:

1. Structural Features

Resistors with wire wound wattage are usually manufactured from high quality materials. These materials make the resistors more resistant to heat, humid environments and other possible external influences.

2. Heat Dissipation

The design of these resistors ensures that they work by effectively dissipating the heat generated during the conversion of electrical energy into heat. Good heat dissipation extends the life of the resistor and improves its performance.

3. Lifetime and Operating Temperature

The lifetime of wire wound wattage resistors is often dependent on the operating temperature. When the operating temperature is kept at an optimum level, these resistors can provide years of trouble-free service.

4. Quality Controls

Quality controls during production affect the durability and lifetime of the resistor. A quality and standardized production process contributes to a longer life of the resistors.

Watt(W)Large(L)Diameter(Ø)
20-25W60mm16mm
30-40W60mm16mm
50-60W90mm20mm
75W120mm25mm
100W170mm25mm
150W170mm30mm
200W240mm30mm
250W240mm36mm
300W300mm36mm
400W350mm40mm
500W500mm50mm
600W500mm55mm
750W500mm65mm
1000W500mm85mm

In addition to the above table, resistors are manufactured according to special orders. Resistors are produced in different geometric dimensions and different wire winding shapes specified by the customer.

Wire Wound Wattage Resistor Images

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