SQP300JB-10K

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Through Hole Resistors are one of the most commonly used solutions in the electronics industry. This type of resistors are used in many different applications, as they provide an excellent combination of power rating, temperature coefficient, tolerance and stability. The SQP300JB-10K is a through-hole resistor manufactured by Takamisawa, featuring a nominal power rating of 300W and a resistance range of 10K, making it suitable for high power applications.

In terms of construction, a SQP300JB-10K is composed of a ceramic body coated in a protective epoxy layer. On the top of the resistor, there is a nickel-plated alloy contact that connects to the wiring harness to complete the electrical connection. On the bottom of the resistor, two metallic threads are inserted to ensure secure mechanical fastening to the PCB. The electrical and thermal characteristics of the resistor depend on the air gap between the metallic threads and the resistor body, and on the epoxy encasement.

The SQP300JB-10K is typically used in industrial automation, robotics, power electronics, LED lighting and other high power applications. It is suitable for use in floating voltage input circuits with the nominal voltage range of 0-300VDC or AC. The high power rating and temperature coefficient ensures superior heat dissipation and a long operating lifetime. The resistor provides a high degree of stability and accuracy and its flow through design minimizes the amount of space needed on the board.

The main advantage of a through hole resistor is that they can be mounted easily and directly onto the circuit board. This eliminates the need for any additional soldering, thus reducing the time and effort required for assembly. Additionally, the unit has a lower maximum temperature coefficient, making it suitable for applications that require precise temperature regulation.

The working principle of a SQP300JB-10K is based on the simple Ohm’s Law, which states that the voltage across an electrical conductor is equal to the current flowing through the conductor multiplied by its resistance. This means that the voltage across the resistor can be adjusted by altering its resistance, and the current through the resistor can be adjusted by altering its voltage. In other words, the resistor acts as a ‘variable resistor’, and can be used to control the flow of electricity in a circuit. The value of the resistor is determined by the size of the body and the number of turns around the ceramic core.

In conclusion, the SQP300JB-10K is a through-hole resistor that is suitable for high power applications. It is composed of a ceramic core with a protective epoxy layer and a nickel-plated alloy contact. The main advantage of the through-hole resistor is that it can be directly mounted onto the circuit board, thus saving time and effort. Further, it provides a high degree of accuracy and stability and its flow-through design requires minimal board space. Finally, its resistance can be adjusted to control the flow of energy in a circuit.

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