RSF-25JR-26-13R

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Through-hole resistors are resistors that are designed to be mounted on printed circuit boards, or PCBs, and are widely used in electronic components such as power supplies, relays, and motors. RSF-25JR-26-13R, also known as a resin coated semi-floating particle resistor, is a type of through-hole resistor.

In terms of physical appearance, RSF resistors have a circular shape, similar to many other types of through-hole resistors. The resistor’s body is composed of a metalized wire wound around a non-metallic substrate, which is then sealed within an encapsulating epoxy resin and has a flat, rather than a cylindrical shape. This construction protects the resistor from humidity, corrosion, and other external factors that may affect its performance.

In terms of working principle, the RSF-25JR-26-13R operates based on the voltage and current that is applied to it. When a voltage is applied to the resistor, an electric current proportionate to the applied voltage will flow through it. This electric current causes the resistor to convert some of the energy into heat, which is dissipated by a “floating” resistor body. The resistance of the resistor increases as the temperature increases, which results in a regulated output voltage and current.

When used in a power converter, the RSF-25JR-26-13R is typically connected to an optocoupler circuit to ensure a safe and reliable electrical connection and limit the transmission of power to the optocoupler. The RSF resistor is also used in applications such as motor control circuits, motor starters, and HID lighting systems. In addition, the RSF resistor is used in combination with other resistors, such as metal oxide varistors, electrolytic capacitors, and surface mount resistors to form an RC snubber circuit for protection against transient voltage.

RSF-25JR-26-13R through-hole resistors are also commonly used in low-voltage lighting applications as the primary current limiting component. In these applications, the resistor is connected in series with a device such as a bulb or LED, and it limits the amount of current that passes through the device to prevent it from being over-driven. The resistor also helps to reduce the chances of fire hazard when the device is operating at higher temperatures.

Overall, the RSF-25JR-26-13R is a versatile through-hole resistor that has a wide range of application fields. It is designed to be small-sized, robust, and reliable, and the wide temperature range in which it operates makes it ideal for both commercial and industrial use. In addition, the RSF resistor’s working principle is simple, yet effective, and it offers reliable performance and protection against transient voltages.

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