PF1262-1R8F1

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Through Hole Resistors are electronic components that reduce current flow, adjust signal levels, divide voltages, and also appear as sources of voltage and current. The PF1262-1R8F1 is a type of through-hole resistor that is produced and sold by E-Projects. It is designed to withstand up to 80 volts and can handle up to 1W of power. It is made from carbon film for PCBs and ceramic base for heat sinks.

The PF1262-1R8F1 application field is in high speed signal processing, addressing complex circuit design as well as providing surge protection for digital signals. They are also used in precision instrument applications as they are capable of extreme accuracy and stability. Its resistance value is 0.1 ohms with a tolerance of 2%.

The working principle of PF1262-1R8F1 is basically the same as other through-hole resistors. In general, the resistance of a resistor is determined by the ratio of its length to its cross-sectional area. The resistance value of a through-hole resistor is calculated mathematically, based on the materials used in its construction and its geometrical dimensions. When a voltage is applied across a resistor, an electric current will flow through it, which causes a drop in voltage across its terminals due to the resistance of the resistor.

When the current passing through a through-hole resistor increases, its temperature also increases, in turn producing a decrease in its resistance. This is the concept of self-heating, which is why it’s important to choose a through-hole resistor with a higher power rating than expected, so that temperatures don’t exceed the normal working range. To guarantee a stable performance, the circuit in which a through-hole resistor is used should be designed to allow sufficient thermal dissipation of the component, or a heat sink can be used.

As a through-hole resistor, the PF1262-1R8F1 has a high accuracy and stability, making it an ideal choice for a wide range of applications, from precision instrumentation to high speed signal processing. It is also versatile in terms of power ratings and construction material, allowing it to easily accommodate a variety of circuit designs. When using a PF1262-1R8F1 in a circuit, it is important to consider its power rating and self-heating, and incorporate a heat sink or thermal dissipation into the design if necessary.

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