SQM700JB-680R

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Through hole resistors are fixed resistors with two lead wires that are connected to electrical components through holes in the printed circuit board. The lead wires are usually made of copper, tin or nickel, and the resistive material is either carbon or metal. The SQM700JB-680R is a through-hole resistor, which is a particular type of surface-mount resistor.The application field of SQM700JB-680R is primarily telecommunications and medical equipment. These applications require low-impedance, low-noise and very accurate resistors. Its resistance range is from 65 Ω to 75 Ω and its tolerance can reach as low as 5%, which makes it suitable for applications requiring high accuracy.The working principle of a through-hole resistor is the same as that of a surface-mount resistor. The lead wires of the resistor are soldered into the component, and when a voltage is applied to the external circuit, an electric current is passed through the resistor. The current is limited by the resistor, and the amount of current passing through the resistor depends on its resistance. The resistance of the resistor in this case is determined by the amount of material used in its construction.In the case of the SQM700JB-680R, the lead wires consist of a tin-coated copper wire. The resistor itself is composed of a resistor body made of a composite of carbon and metal, which provides the resistor with a high level of resistance. The entire assembly is then sealed in a polyurethane coating that provides the resistor with protection from moisture and other environmental elements.The SQM700JB-680R is a highly reliable resistor due to the use of the highest quality materials. It is able to withstand temperatures as low as -40°C and as high as 150°C. The resistor also has a very low ESR, which allows for greater efficiency and lower power consumption.The SQM700JB-680R is an ideal choice for use in applications that require low-impedance, high-accuracy, and low-noise through-hole resistors, such as in telecommunications and medical equipment. This resistor is able to provide reliable performance in a variety of applications, which makes it a popular choice among engineers and technicians.

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