SFR25H0008661FR500

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Through hole resistors are a type of resistor shipping method in which external leads are routed through the board, making it easier to work on the circuit. The main advantage of through-hole resistors is their ability to complete the entire circuit in one go. In contrast, a surface-mounted component must be soldered in place after placement, which can lead to costly repairs if something goes wrong. The SFR25H0008661FR500 is a specific type of through hole resistor, which is often used in circuits with high-voltage and/or high-current demands. Consequently, understanding its application field and working principles is important for any electronics enthusiast.

The SFR25H0008661FR500 is a carbon film resistor with a five percent tolerance rating. It features 25 watts of power, a total resistance of 8.661 ohms and a rated voltage of 500 volts. It is primarily used in electronic circuits that require moderate power handling, such as automobile accessories and consumer electronics. The resistor can also be used in more volatile environments, such as sensitive aircraft instrumentation. The resistor meets or exceeds the requirements of many industry standards, including MIL-PRF-49467, JEDEC, EIA/RS-232 D and MIL-STD-202.

The SFR25H0008661FR500 works on the principle of resistance, which is a measure of the opposition to the flow of electric current through a conductor. When a voltage is placed across a resistor, a corresponding current will flow through it. The amount of current that passes through the resistor is inversely proportional to its resistance; as the resistor\'s resistance increases, the current decreases. The value of the resistor can be determined by its resistance.

When selecting a through hole resistor, it is important to keep in mind its tolerance rating and operating voltage. The tolerance rating of the SFR25H0008661FR500 indicates how much its value will deviate from its rated resistance. Generally, five percent is considered an acceptable tolerance rating for most applications. The operating voltage rating specifies the maximum voltage that can be applied across the resistor without causing damage. For the SFR25H0008661FR500, this rating is 500 volts.

In addition to electrical characteristics, it is also important to evaluate the physical characteristics of a through hole resistor, such as its size and mounting configuration. For the SFR25H0008661FR500, the resistor has a non-inductive construction and is packaged in an axial-leaded, TO-3 type canister. This package contains two leads that are routed through the holes in the printed circuit board, thus making it a through hole resistor. In addition, it has a maximum insulation height of 0.96" (24.4mm).

The SFR25H0008661FR500 is a versatile through-hole resistor that can be used in a variety of applications. Its five percent tolerance rating and 500 volts operating voltage make it suitable for moderate power handling, while its non-inductive construction and axial-leaded TO-3 type package make it easy to mount on the printed circuit board. Understanding the application field and working principles of through-hole resistors is essential for anyone looking to work on electronic circuits.

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