FKN7WSJR-91-39R

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Through Hole Resistors

FKN7WSJR-91-39R is a type of through hole resistor. It is a fairly common device used in all kinds of electronic applications. It is a passive discrete component that works by offering electrical resistance to the flow of current.

Application Field

Through hole resistors are mainly used in circuit boards, especially in those that require mechanical strength and stability. The physical construction of a through hole resistor allows it to be easily attached to a board, and the fact that it has a hole allows for wires to be easily connected. This makes through hole resistors very useful for applications where need reliable and accurate connections on circuit boards.

Through hole resistors are also used for current or voltage protection circuitry. This usage is mainly because of their ability to be soldered and held securely in place in many applications. They are also commonly used to bridge connections in circuit boards, to ensure that all the components are accurately connected and thus ensuring that the board works properly.

Working Principle

Through hole resistors work according to Ohm\'s law. This states that the current passing through the resistor is proportional to the voltage across it, so by changing the resistive value of the resistor, the current flow through it can be controlled. To do this, the resistor is designed to have a specific physical size, and the amount of material inside it determines the resistance value.

The way in which the resistor is designed, and its physical characteristics, dictate the resistance. As the material inside the resistor increases, the resistance increases, and vice versa. The material inside the resistor determines the resistive value of the resistor, and this is what gives it its precise resistance value.

Through hole resistors are designed to have a precise resistance value specified by the manufacturer. This is crucial for ensuring that the current passing through the device does not exceed the maximum rating. Old-style resistors have a single fixed resistance value, whereas modern resistors have resistive values that can be changed. The latter type is known as adjustable resistors, and these are typically used in precision applications.

Conclusion

FKN7WSJR-91-39R is a through hole resistor, and is mainly used in circuit boards for mechanical strength and stability, current/voltage protection and bridging connections. Through hole resistors work according to Ohm\'s law, and their resistive value is determined by the material inside the resistor. Through hole resistors are both fixed and adjustable, and the fixed versions are used mainly for applications that require precise resistance values.

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