SQP30AJB-130R

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Through Hole Resistors are widely used elements in electrical equipment, ranging from simple home appliances to complex industrial equipment. The SQP30AJB-130R is a type of Through Hole Resistor designed for a variety of applications. This article provides an overview of the SQP30AJB-130R\'s application field and working principle.

Application Field

The SQP30AJB-130R is designed for use in power electronic circuits. It has a low forward voltage drop of 1.44V, a high peak power rating of 130 W, and a high peak surge current rating of 10 A. This makes it ideal for applications such as switching power supplies, DC-DC converters, and power factor correction circuits. Additionally, the SQP30AJB-130R has a low reverse leakage current of 10uA, reducing the power loss and improving the system efficiency.

Working Principle

The working principle of the SQP30AJB-130R is based on the Ohm\'s Law. The resistor is composed of two terminals connected by a metallic resistance material, forming a metallic bridge in between. When a voltage is applied across the terminals, it provides a measurable electric current in proportion to the applied voltage. The resistive material of the SQP30AJB-130R is composed of ceramic-filled glassy carbon, which exhibits stable characteristics over a wide temperature range.

The SQP30AJB-130R\'s power rating is determined by its temperature coefficient. The resistor is designed to operate at a maximum temperature of 130°C, which will reduce its power rating. If the operating temperature of the resistor is higher than the specified maximum temperature, it is needed to take certain measure, such as increasing the size of the metal casing, to ensure the resistor remains functional in high-temperature environments.

Conclusion

The SQP30AJB-130R is a Through Hole Resistor, designed for power electronic circuit applications. It is composed of ceramic-filled glassy carbon and has a low forward voltage drop, a high peak power rating, and a low reverse leakage current. It is designed to operate at a maximum temperature of 130°C and measures should be taken to ensure its functionality in high-temperature environments.

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