SQM300JB-0R18

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Through Hole Resistors

A through hole resistor, such as the SQM300JB-0R18, is a device used in electronic circuits to provide electrical resistance. Through hole resistors feature a metal core with two electrical connections, which is then covered with a thin insulating material, usually a ceramic or plastic. They are used when an electronic circuit requires precision resistance values, good repeatability, and stable operation over a wide range of temperatures.

Application Field

The SQM300JB-0R18 through hole resistor is commonly used within consumer electronics, automotive, and aerospace industries. It is an ideal choice for applications that require a precise and well-regulated resistance of 300 ohms in a robust and reliable package. The resistor is manufactured to the highest tolerance of 0.05%, ensuring precise and repeatable results, and its small size allows for it to be easily integrated in both complex and simple circuits.

This type of resistor is suitable for use in a variety of electronic circuits, including amplifiers, oscillators, signal generators, and power supplies. In general, it is used to provide resistance for current flow, signal attenuation, voltage division, and power control.

Working Principle

The SQM300JB-0R18 through hole resistor works by passing electric current through a thin metal core, while applying a voltage across its terminals. The resistance of the resistor is determined by the length, width, and material of the core. As electricity passes through the resistor, it encounters resistance, which causes all the electrons to slow down and generates heat. This heat energy is dissipated into the surroundings, reducing its electrical current.

The magnitude of the resistance in Ohms depends on the geometry of the core, the width and length of the resistor’s metal path. As a result, the voltage across the resistor is equal to the current passing through it multiplied by the resistance. This voltage drop is then used to regulate the amount of current flowing through the circuit, which in turn determines the electrical output of the electronic device.

Conclusion

The SQM300JB-0R18 through hole resistor is a low cost and reliable solution for providing a stable, precise resistance of 300 Ohms within a wide range of consumer electronics, automotive, and aerospace applications. Its small form factor allows for easy integration into complex circuits, and its thin metal core and insulating material provide excellent repeatability and stability over a wide range of temperatures. This type of resistor is a great option for any application that requires a reliable and precise resistance value.

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