SQP300JB-6K8

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Through Hole Resistors (THR) are typically used in applications where large currents of up to several hundred amperes are present. The SQP300JB-6K8 resister is a current sense resistor typically available in packages of various sizes, and rated for use up to 8.8 volts. The resistor element is constructed from nickel-chrome alloy wire which is wound on a substrate, then wax sealed and encapsulated in a thermosetting plastic compound.The SQP300JB-6K8 resistor has a low-error current rating of up to 2.2 amps, and is also capable of carrying higher currents due to its low temperature coefficient of resistance and its unusually high structural strength. When placed in series with a load, the resistor will divert a percentage of the electrical current flowing through it, thus creating a proportional voltage drop across the resistor. This voltage can then be measured and used to give an indication of the current going through the load.When using the SQP300JB-6K8 in a current sense application, resolution is determined by a combination of the resistance of the resistor and the voltage range it is placed across. By varying the resistance and voltage, the amount of current that is diverted can be adjusted to give the best signal-to-noise ratio.In the sensing application, the SQP300JB-6K8 can be used in applications such as direct current sensing, short-circuit protection, power factor measurement, and over-voltage protection. It is commonly used for feedback loops in high power switched-mode power supplies, and the accuracy of the current sensing ensures high power supplies that operate reliably.In direct current sensing, the resistor is typically placed in series between the load and the power source, allowing us to measure the Voltage drop across the resistor. This voltage can then be converted to a current value, providing a direct measurement of the current. This is especially useful in high power switched-mode power supplies, as it allows us to easily monitor the current draw of the load, and to ensure the power supply is running efficiently.In short-circuit protection applications, the resistor element is used to detect when a load is drawing too much current for the power supply to safely source. When the current reaches a preset value, the resistor will trip, diverting the current away from the load and thus preventing a potentially catastrophic chain reaction.In power factor measurement applications, the SQP300JB-6K8 resistor is placed in series with the load. The voltage drop across the resistor can then be measured to determine the power factor of the load. The power factor is a measure of how efficiently the power is being used, with higher numbers indicating more efficient utilization of power.Finally, in over-voltage protection applications, the SQP300JB-6K8 resistor is used to detect when the voltage reaches a certain, potentially dangerous, level. When the voltage reaches this limit, the resistor trips, providing a reliable method of protection from potential damage or malfunction due to an over-voltage event.The SQP300JB-6K8 resistor is a versatile, reliable, and accurate instrument for measuring, monitoring, and protecting against current overloads. Its wide range of applications, from direct current sensing to power factor measurement, makes it a popular choice for both industrial and commercial applications. It is easy to install and use, and can provide accurate and reliable power sensing with minimal effort.

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