RWR81S15R8FSS73

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Resistors are important components in the electronics industry, and a common category of resistors are called Through Hole Resistors. These resistors are typically referred to by a 4- or 6-digit component number, such as RWR81S15R8FSS73.

The industry standard for Through Hole Resistors is that the first two digits of the component number refer to the lead diameter of the resistor, which is measured in mils (thousandths of an inch). For example, the part number RWR81S15R8FSS73 indicates that the lead diameter is 81 mils. The third digit usually indicates the wattage the resistor can handle, with values of 1, 2, 3, and 5 typically indicating 1 Watt, 2 Watts, 3 Watts, and 5 Watts respectively.

The fourth and fifth digits of the component number usually indicate the resistor value in ohms. For part number RWR81S15R8FSS73, the resistor value is 15 ohms. The sixth digit usually indicates the tolerance level of the resistor, with 1 for 1%, 2 for 2%, and 3 for 5%. In this case, the sixth digit is an 8, indicating that the resistor has an 8% tolerance level.

The last two characters of the component number are usually either F or S. An F usually indicates a flame retardant resistor, while an S usually indicates a resistor that will survive a soldering process.

Through Hole Resistors typically have two leads that extend through a hole in a circuit board. These leads are then soldered to the circuit board, connecting the resistor to the circuit. The resistor then serves to limit the flow of current through the circuit. In the case of part number RWR81S15R8FSS73, the resistor will be 15 ohms, with an 8% tolerance level, a wattage of 5 Watts, and the leads will have a diameter of 81 mils. The resistor also has a flame retardant and soldering resistant coating.

Through Hole Resistors are used in a variety of applications, from simple circuits for toys to complex circuit boards for computers and other electronics. The resistor serves to limit and control the flow of current within the circuit, and can prevent damage to components or fires in cases of electrical overload.

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