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Wirewound resistors refer to the electrical passive components that are limiting current with a wire material that features high resistivity. Their resistive elements exist out of the metallic wire insulated that has been winded around the non-conductive material core.The resistive elements are existing out of metal wire that is insulated and winded around a non-conductive core material. Such resistors have been typically composed of copper-nickel-managese called as the “Manganin” or Nichrome materials (nickel-chromium). These kinds of resistors have been composed of manganese, nickel and copper. It also includes nickel-chromium or Nichrome materials. Such wire wound resistors had been an old type of resistor. However, these have been still manufactured today. These are produced accurately. Aside from that, they are also possessing excellent low resistance value as well as high power rating properties.
The wire wound resistor construction depends on different factors involving the material manufacturing and choice utilized varying on how resistors were used in a circuit. The values of resistance rely on wire resistivity. It also involves cross section and length. To obtain a high measurement in tolerance, the resistance value is measured to determine the exact wire length cut. In order to obtain a higher resistance, the wire diameter must become small enough and the length should be quite long.
Pulse Resistor
Wirewound resistors refer to the electrical passive components that are limiting current with a wire material that features high resistivity. Their resistive elements exist out of the metallic wire insulated that has been winded around the non-conductive material core.The resistive elements are existing out of metal wire that is insulated and winded around a non-conductive core material. Such resistors have been typically composed of copper-nickel-managese called as the “Manganin” or Nichrome materials (nickel-chromium). These kinds of resistors have been composed of manganese, nickel and copper. It also includes nickel-chromium or Nichrome materials. Such wire wound resistors had been an old type of resistor. However, these have been still manufactured today. These are produced accurately. Aside from that, they are also possessing excellent low resistance value as well as high power rating properties.
The wire wound resistor construction depends on different factors involving the material manufacturing and choice utilized varying on how resistors were used in a circuit. The values of resistance rely on wire resistivity. It also involves cross section and length. To obtain a high measurement in tolerance, the resistance value is measured to determine the exact wire length cut. In order to obtain a higher resistance, the wire diameter must become small enough and the length should be quite long.
Pulse Resistor
Wirewound resistors have been giving capacitance and inductance that are affecting the current flow in an alternative current circuit. Due to the wirewound resistor design principle, which is the inductor, it got the worst frequency properties among other types of resistors. There were distinct ways to apply winding and these rely on the application of the resistor. Through the DC current, there will only be a few problems in terms of winding compared to the AC current due to the self induction and parasitic capacity. Reducing the effects is done in different methods. These include bifilar winding, flat former winding and the Ayrton-Perry winding.
The winding types were integrated in measurement device and decade banks, however, the drawback of these kinds of methods is more on difficulty in manufacturing process. There have been various types of wirewound resistors that have been categorized into precision and power types. They were generally modified for many different selections of applications. These applications include temperature sensors, current and potentiometers.
DC Current Shunts
A wire resistor is usually found in a circuit breaker or as a fuse. In order to come up with fusible resistors, the manufacturers are going to integrate small springs into the other end of a resistor. Whenever the current and the heat through a resistor gets high enough, the solders will melt while springs are popping up when the circuit opened.
The winding types were integrated in measurement device and decade banks, however, the drawback of these kinds of methods is more on difficulty in manufacturing process. There have been various types of wirewound resistors that have been categorized into precision and power types. They were generally modified for many different selections of applications. These applications include temperature sensors, current and potentiometers.
DC Current Shunts
A wire resistor is usually found in a circuit breaker or as a fuse. In order to come up with fusible resistors, the manufacturers are going to integrate small springs into the other end of a resistor. Whenever the current and the heat through a resistor gets high enough, the solders will melt while springs are popping up when the circuit opened.