RN50C3742FBSL

Series:	Military, MIL-R-10509/8, RN50
Packaging:	Bulk
Part Status:	Active
Resistance:	37.4 kOhms
Tolerance:	±1%
Power (Watts):	0.05W, 1/20W
Composition:	Metal Film
Features:	Flame Retardant Coating, Military, Moisture Resistant, Safety
Temperature Coefficient:	±50ppm/°C
Operating Temperature:	-65°C ~ 175°C
Package / Case:	Axial
Supplier Device Package:	Axial
Size / Dimension:	0.065" Dia x 0.150" L (1.65mm x 3.81mm)
Height - Seated (Max):	--
Number of Terminations:	2
Failure Rate:	--

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Through Hole Resistors: Application Field and Working Principle

Through hole resistors, also known as axial lead resistors, are composed of a ceramic core, a resistor wire and a package. The most common types are RN50C3742FBSL, which are long cylindrical resistors with two leaded ends. These resistors are mainly used in a wide range of applications in the power industry, such as: air-conditioning and heating appliances, radio, television, computers, instruments and others.

Working Principle

A through hole resistor is a device that converts electrical energy into other forms of energy. It is made of a coil of material, usually a carbonized metal or a ceramic material, which has a resistance value or an established amount of power, that when connected to an electrical circuit, it limits the electrical current.The amount of resistance in a resistor is determined by the length and width of the resistive material used, as well as its shape. In resistors, it is usually measured in Ohms (Ω). The mathematical formula for calculating the resistance of a resistor is R = ρl/A, where ρ is the resistivity of the material, l is the length, and A is the cross-sectional area of the material used.The two leaded ends of a through hole resistor are connected to the two poles, the positive (red) and the negative (black) of the circuit. When an electrical current is applied to the resistor, it causes a voltage drop between the two terminals, thus limiting the flow of electricity.

Application Field

Through hole resistors are used in a wide range of circuits, across many different industries.In the electrical and electronics industry, these resistors are often used to adjust the current amplitude or voltage within the circuit. Common applications include in amplifiers, oscillators, as well as, buffer amplifiers, digital circuits, and power supplies.In the automotive industry, through-hole resistors are used to control electrical components such as headlights, stereo systems, and speedometers. They are also essential components in airbag systems and other safety components.In the consumer electronics, through hole resistors are used in a variety of applications, such as sound systems, computer systems, and motor control systems.In the medical industry, resistors are used for controlling electrical devices such as digital thermometers, stethoscopes, hearing aids, and pacemakers.In the telecommunications industry, resistors are used to control wireless signals, as well as for isolating specific electronic devices from interference.Lastly, in the industrial market, through hole resistors are used in the operation of electric motor control systems, power transmission systems, and power measurement systems.

Conclusion

Through hole resistors are a very important component in the electrical and electronics industry. RN50C3742FBSL, in particular, are long cylindrical resistors which are used in a wide range of applications in the power industry. These resistors are composed of a ceramic core, a resistor wire and a package, and they limit the amount of electrical current in an electrical circuit. Through hole resistors are used in a variety of applications such as amplifiers, oscillators, automotive industry, consumer electronics, medical industry, telecommunication industry, and the industrial market.

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