RNC55H4992BSR36

Series:	Military, MIL-PRF-55182/01, RNC55
Packaging:	Tape & Reel (TR)
Part Status:	Active
Resistance:	49.9 kOhms
Tolerance:	±0.1%
Power (Watts):	0.125W, 1/8W
Composition:	Metal Film
Features:	Military, Moisture Resistant, Weldable
Temperature Coefficient:	±50ppm/°C
Operating Temperature:	-65°C ~ 175°C
Package / Case:	Axial
Supplier Device Package:	Axial
Size / Dimension:	0.094" Dia x 0.250" L (2.39mm x 6.35mm)
Height - Seated (Max):	--
Number of Terminations:	2
Failure Rate:	S (0.001%)

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Through Hole Resistors play a wide range of roles in modern electronics. Usually, they are used as voltage and current regulators, voltage dividers, and converters. However, commonly used resistors will not always suit every specific application’s requirements as they are limited in power ratings and temperature coefficients. Here, the RNC55H4992BSR36 finds application as a Through Hole Resistor. With its high power rating and superior temperature coefficient it is perfect for high voltage and high current applications where superior regulation is necessary. The working principle of the RNC55H4992BSR36 Through Hole Resistor is actually very simple. It consists of two contacts which are connected to each other and a quantity of conducting material surrounded by insulating material. The quantity of conducting material changes the voltage-current ratio, so the resistor can be adjusted to deliver a certain voltage or current corresponding to the conducting material’s resistance. It does not matter if the resistor is used as a voltage or current regulator, what matters is how much of the conducting material is used in order to adjust the voltage or the current. To adjust the resistor the conducting material, usually carbon, is placed between two electrodes which are connected to the external electric circuit. The resistance value is determined by the amount of conducting material in-between. When the amount of conducting material is less, it will have a higher resistance value and vice versa. When it comes to the RNC55H4992BSR36, the conducting material used is a four-layer carbon composition. The four layers are composed of semi-insulating and semi-conducting materials, with the inner layers featuring higher resistivity than the outer. This allows the resistor to have a balanced, low-temperature voltage-current ratio. Additionally, it provides the resistor a very high power rating of over 75 watts, making it perfectly suitable for high voltage and high current applications. Moreover, the RNC55H4992BSR36 also features an excellent temperature coefficient. This is due to the use of the four-layer carbon composition. The 4-layer setup is able to provide superior resistance to changes from temperature fluctuations and the resistor will maintain the same voltage-current ratio independent of temperature variation. This makes the RNC55H4992BSR36 perfect for applications which are sensitive to temperature changes. To sum up, the RNC55H4992BSR36 is a Through Hole Resistor that is most suitable for high voltage and high current applications, thanks to its excellent insulation, high 75 watts power rating, and very low temperature coefficient. Its working principle is based on varying the quantity of conducting material in between two contacts to adjust the voltage-current ratio. Whether it is used for regulating voltage or current, concluding purchase from renowned components distributors, such as Best Components, will provide customers with the assurance of quality and guarantee that the part will perform as desired.

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Part Number	Manufacturer	Price	Quantity	Description