Series:	Military, MIL-PRF-39007, RWR81N
Packaging:	Tape & Reel (TR)
Part Status:	Active
Resistance:	124 Ohms
Tolerance:	±1%
Power (Watts):	1W
Composition:	Wirewound
Features:	Military, Moisture Resistant, Non-Inductive
Temperature Coefficient:	±20ppm/°C
Operating Temperature:	-55°C ~ 250°C
Package / Case:	Axial
Supplier Device Package:	Axial
Size / Dimension:	0.085" Dia x 0.250" L (2.16mm x 6.35mm)
Height - Seated (Max):	--
Number of Terminations:	2
Failure Rate:	R (0.01%)

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Through Hole Resistors

A through hole resistor is a passive two-terminal electrical component that uses resistance to reduce current flow, adjust signal levels, and to divide different voltages. The RWR81N1240FRS70 is a series of through-hole fixed resistors from the RWR81N series. It is a high-performance resistor, with an operating temperature range of -55°C to +150°C, and a power rating of 1/2W.

RWR81N1240FRS70 Application Field

The RWR81N1240FRS70 is used for a variety of applications, such as in medical devices, automotive, industrial, lighting, and consumer electronics. This gives it a wide range of applications in any project.

RWR81N1240FRS70 Working Principle

The working principle of the RWR81N1240FRS70 is based on the fact that all through-hole resistors are based on the Ohm\'s Law. According to the principle, the current flow through a resistor is equal to the voltage applied to it (E), divided by the resistance (R). The RWR81N1240FRS70 is based on this principle, as it has a fixed resistance of 1.2 KΩ.When the RWR81N1240FRS70 is connected to a circuit and a voltage source is applied to one end, the current will flow through the resistor and the other end of the resistor will be at lower voltage than the source. This decrease in voltage is known as the voltage drop, which is dependent on the current and resistance.The higher the resistance, the greater the voltage drop; however, in the case of the RWR81N1240FRS70, the resistance is known and fixed at 1.2KΩ. This allows the voltage drop to be calculated given the current. A higher voltage drop is generally desired, as it filters out signal noise and allows for precise control of the circuit\'s functionality.

Advantages

The RWR81N1240FRS70 offers several benefits, such as increased accuracy, low cost, and low power consumption.The RWR81N1240FRS70 is a precision resistor, meaning that its resistance value is very accurate and stable despite environmental changes such as temperature, humidity, and vibrations. This ensures a robust performance and increases system reliability.This resistor is also relatively inexpensive when compared to other components used in the same application.The RWR81N1240FRS70 has a low power dissipation of 1/2W, meaning it does not draw too much power from the circuit and can be used in those applications where power consumption is of primary concern.

Disadvantages

The RWR81N1240FRS70 has a few drawbacks, such as lower voltage capability and higher inductance.Since the RWR81N1240FRS70 is a through-hole resistor, its voltage rating is lower than other types of resistors. This means that it cannot be used in circuits operating with higher voltages.The RWR81N1240FRS70 also has higher inductance than other resistors, which can lead to errors in frequency-dependent applications.

Conclusion

The RWR81N1240FRS70 is a through hole resistor from the RWR81N series. It offers increased accuracy, low cost, and low power consumption and is suitable for applications in medical devices, automotive, industrial, lighting, and consumer electronics. However, it has lower voltage capability and higher inductance than other resistors and cannot be used in circuits operating with higher voltages.

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