RNF18FTD499K

Series:	RNF
Packaging:	Tape & Reel (TR)
Part Status:	Active
Resistance:	499 kOhms
Tolerance:	±1%
Power (Watts):	0.125W, 1/8W
Composition:	Metal Film
Features:	Flame Retardant Coating, Safety
Temperature Coefficient:	±100ppm/°C
Operating Temperature:	-55°C ~ 155°C
Package / Case:	Axial
Supplier Device Package:	Axial
Size / Dimension:	0.071" Dia x 0.130" L (1.80mm x 3.30mm)
Height - Seated (Max):	--
Number of Terminations:	2
Failure Rate:	--

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Through Hole ResistorsThrough hole resistors are electrical components used to fundamentally reduce the number of electric current. The most commonly used type is a discrete device with two terminals, known as a two-terminal resistor. RNF18FTD499K is a through hole resistor belonging to this type, applied in a wide range of fields.The RNF18FTD499K through hole resistor is a high precision resistor with a tight tolerance, it is capable of maintaining a maximum temperature coefficient of about ±50ppm/°C and a high resistance ratio up to 1%, making it a popular choice in most precision-dependent electronic applications. It can be applied to voltage/current dividers, precision instrumentation amplifiers, filters, and has been widely used in industrial, automotive, medical and other professional fields.The RNF18FTD499K through hole resistor is made up of 4 series printed thick film elements for much higher reliability. It utilizes a a patented plating process to provide excellent solderability and resistance to heat. The solderability had been de-rated and tested with a 260°C 10second soldering, which can minimize the risk of default in long-term usage. The device also adds an additional protective varnish layer which further enhances its resistance to environmental influences or even corrosive elements during operating conditions.The stability of a RNF18FTD499K through hole resistor is determined in large part by the material used to build it up. In this case, a 4 series printed thick film elements contribute to the high electrolytic stability of the device with the dielectric breakdown at 1kV. The resistor also has high reliability with excellent bearing voltage and environmental stability, which enables it to function safely in harsh environment conditions or under accelerated aging tests.In terms of work principle, the RNF18FTD499K through hole resistor works by converting a portion of the current flow through through electrical resistance produced by the 4 series thick film elements, which is determined by the nominal value of the resistor, such as 18K ohm. This conversion of current to voltage produces heat, known as Joule heating. By controlling the amount of current flows, the resistance provides electrical power dissipation, which allows for high precision current measurement and regulation.Thus, the RNF18FTD499K through hole resistor is an excellent choice for applications requiring precision, reliability and stability even in harsh operating conditions or environmentally-challenging settings. Because of its ability to precisely divide the current flow, regulate power dissipation and provide high electrical power, it can be applied with wide-spread versatility across both industrial and consumer markets.ConclusionThe RNF18FTD499K through hole resistor is a high precision, reliable and stable device commonly used in various industrial, automotive and medical applications. With a high tolerance of up to ±50ppm/°C and resistance ratio of 1%, it is able to precisely control current measurement and power dissipation, making it suitable for a wide range of applications. The 4 series printed thick film elements also provides excellent solderability, heat resistance as well as environmental and electrical protection.

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