What are the types of fusing resistors
In our lives, we cannot do without the use of electricity, and when it comes to electricity, we cannot do without the discussion of resistance. Where there is electricity, there will be resistance. In order to facilitate everyone to better understand the knowledge of resistors, today I will take everyone to learn the types of fuse resistors.
Introduction to Fuse Resistors
The fuse resistance is also called the fuse resistance. The fuse resistance has the functions of both resistance and fuse. It is only used as a resistor at ordinary times; once the current is too large, it will play its role as a fuse to protect machinery and equipment. The color of the chip fusing resistor is usually green, and the surface is marked with a white number “000” or rated current value. When the circuit load has a short-circuit fault or an overcurrent occurs, the temperature of the fuse resistor will rise to 500°C to 600°C in a short period of time. At this time, the resistance layer will be peeled off by heat and fuse, which plays a role of insurance and achieves the purpose of improving the safety of the whole machine.
There are many shapes of fusing resistors, both like ordinary resistors and other shapes. The most commonly used are the following.
(1) Fuse resistance resembling a diode or a magnetic bead
The shape of this type of fuse resistor is similar to a rectifier diode, the whole is black, but there is no white ring for marking the polarity of the diode. The surface is generally marked with the size of its current, such as 1, 5A. This kind of fuse resistor is usually used in the computer’s optical drive and the motherboard’s keyboard/mouse interface circuit.
(2) The fuse resistor in the shape of a small white square
The shape of this type of fuse resistor is similar to a patch electrolytic capacitor, but its color is white, and the surface is marked with the size of the maximum current, such as 400mA, which means that the maximum current through which it passes is 400mA.
(3) Fuse resistance resembling a common resistor
Fuse resistors of this type are commonly used in some low-end motherboards, optical drives and displays. Its shape is similar to ordinary resistors, and the color is generally green or gray. Some are marked with a current value (such as 1.1A/2A), and some are marked with a color ring.
(4) Gray flat fuse resistor
The fuse resistance of this kind of shape is similar to the flat chip inductor. There are marked characters on it, such as LF110, which are generally used in the 9-pin serial communication interface, 25-pin parallel communication interface, and display external interface of the motherboard and notebook computer.
(5) Green flat fuse resistor
This type of fusing resistance is a commonly used fusing resistance. There are generally current labels on it, such as X26, X15, 1×1, etc., indicating that the current is 2.6A, 1.5A, and 1A, respectively.
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