SM15-100KB Resistors

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Through Hole Resistors

Through hole resistors are a type of resistor that is circuit board mounted and that utilizes leads that are passed through the board. They are typically characterized by leads that have different lengths, usually the shorter lead signifies the element\'s negative terminal and the longer lead points to the positive terminal. They are the oldest type of resistor, however, are still widely used today due to their simple construction and robustness.

SM15-100KB Application Field and Working Principle

The SM15-100KB through-hole resistor series is a single-in-line (SIL) chip resistor that is frequently used in the general audio and visual industry. This resistor is made up of several grids of thin and flat metal strips, which are welded together with deposited metal layers, and interconnected with fine metal ribbons to the ends. It is designed to have higher power as compared to other through-hole resistors in the market.

The SM15-100KB dependent upon its size is capable of high power dissipation with a voltage rating of 75VAC and a maximum operating temperature of +125℃. The resistor is a surface mount resistor, which features a lead pitch of 5mm with a lead length of 17.5mm or 20.5mm. This design of through-hole resistor is great for audio-visual applications, but offers little transient overvoltage protection due to its lead length, tolerance, and temperature coefficients.

The working principle of a through-hole resistor is simple: when an electric current passes through the resistor, it exerts a resistance that limits the flow of current. This resistance is dependent on the resistive material, its length and its width. Different materials have different resistivity values, which influence its ability to resist current. The resistive material is usually in the form of coils or stripes of carbon that are etched onto a piece of substrate, which is then encased within an insulating material.

This through-hole resistor design in particular is designed for audio-visual applications on boards, as its leads are suitable for through-hole mounting on circuits and its resistance and temperature coefficients provide a stable and uniform performance for long-term use. This combined with its high power dissipation of 75VAC makes it ideal for applications in the audio and visual industry.

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