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These ohm resistors come with different characteristics. The value of resistance in all these types is 820 ohm.
A wirewound resistor is made by winding an insulated wire. The wire is usually made of nickel-chromium or tungsten. The wire is then wound onto an insulating ceramic or glass core. After that, the core material then comes with a thin film of resistive material applied to its surface. This process gives the resistor its resistance value. Wirewound resistors are highly precise and stable. They are commonly used in applications where accuracy is vital.
A ceramic cement resistor also has the required resistance of 820 ohm value. But it comes with a cylindrical design. The body of the resistor is molded from a ceramic material. A resistive element is embedded within this body somehow. Conductive carbon or metal lines are used to form the resistive element. The mixture is then cured at high temperatures. This process ensures the resistive element is securely embedded within the ceramic. This method of curing forms a robust and durable structure.
820 ohm Metal film resistors are made by meticulously depositing a thin metallic film onto a ceramic rod. This rod is then sliced into individual chips. The resistive value is then adjusted by grinding the film into a spiral shape. Metal film resistors are also preferred when low tolerances and high stability are needed. Auto and telecom industries commonly use them.
The carbon film resistors are made from a carbon-coated plastic or ceramic substrate. An 820 ohm carbon resistor film is applied to the surface of the substrate. The film is then sputtered or etched to create distinct resistive paths. This process defines the resistive value. Carbon film resistors are lightweight and compact. They are used in applications requiring moderate power and resistance values.
820 ohm wire resisters are widely valued for their specific resistance. Industrial applications for these resistors require controlling current flow, temperature stability, and a wide range of operating conditions.
820 ohm resistors are vital in telecommunication circuits. The resistors ensure signal integrity during transmission and reception in conditioning circuits. These resistors apply the right voltage to prevent signal distortion. This maintains data accuracy over long distances and ensures seamless operation.
820 ohm resistors are used in temperature sensors and signal circuits in HVAC systems. When 820 ohm resistors are paired with temperature sensors, they help monitor heating and cooling. This helps provide accurate temperature readings in HVAC systems. The resistors help the sensors read and then adjust the airflow and energy consumption. This process ensures the systems operate efficiently. Thus, reducing energy costs and maintaining comfort levels.
820 ohm resistors offer reliable performance in industries that require electric motors to be tested. Large manufacturers of electric motors use load testers to keep their motors under certain conditions. They also keep track of how they perform under heavy usage. 820 ohm resistors create a safe electrical load for these motor tests.
820 ohm resistors help control the current levels in resistance welding machines. By upend welding current, these resistors ensure the quality and consistency of the welds. There will be no wastage of materials as Precision 820 ohm resistors provide stronger joints. All these features make them crucial in industries like automotive manufacturing. These industries often rely on heavy-duty welding equipment.
The structure of a 820 ohm resistor comprises several different parts. Each part has a specific function.
820 ohm resistors have cylindrical structures. Most have metallic or carbon-based resistive elements. These elements are integrated onto ceramic substrates or wirewound cores. The ceramic or metal materials ensure durability. These resistors are designed to withstand harsh conditions, including high temperatures and humidity levels.
Resistor Tolerance
820 ohm wire resistor tolerance refers to the precision in its resistance value. It usually comes with a tolerance of ±1% to ±5%. This variance means the actual resistance can be within 1% to 5% of the stated 820 ohm value. For instance, a resistor with a tolerance of ±1% can have a resistance as low as 812 ohm and as high as 828 ohm. This slight difference does not affect the overall performance as it allows for minor resistive value fluctuations.
Temperature Coefficient
The temperature coefficient of 820 ohm resistors is typically around ±50 ppm/°C. Temperature coefficient is a term used to define how much the resistance value changes due to temperature variations. This coefficient indicates that for every degree Celsius the temperature changes, the resistance will change by approximately 50 parts per million. Therefore, if the resistor experiences a temperature change of 10 °C, its resistance will vary by around 5,000 ppm.
Power Rating
The power rating of these resistors is usually around 0.125W to 0.5W. This means it can safely dissipate up to 0.125 to 0.5 watts of electrical energy without risking overheating or damage.
Installation: 820 ohm resistors should be installed in a circuit so that the resistor's leads or terminals are inserted into the designated spaces on the circuit board. The traces or connections should align with the circuit board resistor's leads. The same goes for wire resistors where the leads are connected to the terminals.
Usage Scenarios: These resistors are ideal in voltage dividers and signal conditioning circuits. They also help limit current in LED circuits. The resistors act as a safety measure in power supply circuits. They stabilize the output voltage and prevent overloading other components.
Maintenance: These resistors rarely require active maintenance. But regular monitoring is needed in applications where they are exposed to extreme heat or high voltage. The users will have to check the resistors periodically to ensure they are functioning correctly. This is especially true when used in long-term applications. Physical damage will have to be visually inspected. Also, check for signs like burnt areas, cracks, or wear along the resistor's surface. The users should replace damaged resistors with new ones. People may either do this by installing a new one or hiring a professional to do it.
When buying a vibe 820 ohm wire resistor, there are several factors to consider.
820 ohm wire resistors have different materials that affect their functionality. Metal film resistors are known for their durability and precision. They are mostly used in circuits that require stability. Carbon film resistors, on the other hand, are better in cost-efficient situations. They are usually applied in standard electronic devices where high precision is not a must.
820 ohm resistors come in different shapes and sizes. There are axial leaded, surface mount, and wirewound resistors. Axial leaded resistors are fit for through-hole applications. On the other hand, surface mount resistors are ideal for modern compact circuits. Wirewound resistors may be more suitable for high-power applications.
820 ohm resistors are mostly manufactured to fit common industrial standards. These standards include CE, RoHS, and ISO certifications. People must ensure the resistors have the necessary certifications. This will guarantee that the resistors comply with international quality and safety regulations.
The lifespan of the resistors depends on the power ratings and usage conditions. Metal film resistors have longer lifespans in stable environments. But wirewound resistors may last in high power-dissipating conditions due to their robust construction.
A1.820 ohm resistors are intended to limit current, divide voltage, and stabilize circuits. This then ensures the components operate within their required specifications. The resistors act as safety devices protecting sensitive parts from damage due to electrical overload.
A2.Wirewound resistors withstand higher power ratings than most resistor types. Their intricate wire design allows them to handle heavy currents. This makes them suitable for high-demand applications.
A3.Metal film resistors can work in moderate power applications due to their precision and stability. But for high-power applications, users should use wirewound or 820 ohm ceramic resistors. They are intended for high-power consumption applications.
A4.Resistor materials, like gold-plated wire or nickel-chromium wire, are used in construction. They affect tolerance. The manufacturing method also plays a role. Tolerance is tighter in resistors that use precision-cut wire.
A5.Carbon film resistors are cost-effective. They also have decent precision and can handle average power ratings. Their affordable prices and sufficient functionalities make them widely used in everyday electronics.
