H897K6BDA

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Through Hole Resistors (H897K6BDA)

Through-hole resistors are the most common type of resistor used in electronics and are found in all kinds of consumer products and production systems. A through-hole resistor has two terminals and a cylindrical body which houses the resistive element. The terminals come in different shapes, sizes and types such as dip or gullwing connections.

Application Field and Working Principle

Through hole resistors are used to control the amount of current flowing through an electrical circuit, which is essential in the safe operation of an electronic device. They can also be used to create voltage dividers, protect other components from excessive current, and dissipate heat generated in a circuit.

The working principle of through-hole resistors is based on Ohm’s law, which states that the current in a circuit is directly proportional to the voltage applied across it, and inversely proportional to the resistance of the circuit. Therefore, by varying the resistance of a resistor, the current through a circuit can be controlled.

Unlike some other resistors, through hole resistors are usually capable of withstanding high voltages and currents. They can be made from a variety of materials, such as carbon, metal-oxide, metal film, ceramic or cement. They are available in a range of tolerance levels, which is the amount of variation in resistance from the marked value that can be expected.

In terms of the physical size of the resistor, the higher the power rating, the larger the resistor body will be. This is necessary in order to dissipate the heat generated by the resistor as effectively as possible. Some larger resistors also have heatsinks attached to them to help combat the effects of high temperatures.

Through hole resistors are generally sold as encased components, or occasionally in an open construction. The leads of the component are usually soldered on to the printed circuit board (PCB) to produce a connection. The terminals of the component may also be plated with solder or gold to prevent corrosion, or they may be sealed with a lacquer to protect against moisture.

With their extensive range of application and available sizes, shapes, capacities and tolerances, through-hole resistors are a useful and versatile type of passive component.

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