H818RFYA

Series:	Holco, Holsworthy
Packaging:	Bulk
Part Status:	Active
Resistance:	18 Ohms
Tolerance:	±1%
Power (Watts):	0.25W, 1/4W
Composition:	Metal Film
Features:	Pulse Withstanding
Temperature Coefficient:	±15ppm/°C
Operating Temperature:	-55°C ~ 155°C
Package / Case:	Axial
Supplier Device Package:	Axial
Size / Dimension:	0.098" Dia x 0.283" L (2.50mm x 7.20mm)
Height - Seated (Max):	--
Number of Terminations:	2
Failure Rate:	--

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Introduction to Through-hole Resistors:Through-hole resistors are widely used in a variety of electronic applications. The most common type of through-hole resistor, the H818RFYA, is a carbon-film resistor with a tight tolerance range, low noise, and superior temperature stability. It is rated for use up to 85°C.The H818RFYA resistor consists of a resistor element housed in a thermally stable enclosure. The element is formed by winding thin-film resistive material onto a ceramic or ceramic-filled core. This allows the element to maintain its low resistance characteristics over temperature and humidity fluctuations, ensuring excellent performance in high-heat and vibration applications. The design also offers superior noise reduction and protection against EMI/RFI interference.Application Fields of H818RFYA Through-Hole Resistor:H818RFYA through-hole resistors are used in a wide range of applications, including industrial control, automotive, and consumer electronics. In industrial settings, they are often used for primary power regulation, signal line interfacing, and instrument control applications. In automotive applications, they are commonly employed for fuel injection, automatic transmission, and DC motor control. In consumer electronics, they are commonly used in small appliances, LCD displays, and remote controls.Working Principle of H818RFYA Through-Hole Resistor:The working principle of an H818RFYA through-hole resistor is based on the concept of electrical impedance. The resistance value is determined by the number of turns in the coil and the thickness of the thin-film resistive material. The current passing through the resistor is limited by the impedance it presents to the power supply. The tighter the tolerance range, the less current can be passed through the resistor. At the most basic level, the component works by changing the voltage of the current. The voltage is changed by varying the number of turns in the coil and the resistance of the thin-film material. When the voltage is increased, current is also increased. When the voltage is decreased, current is decreased. This allows the H818RFYA resistor to act as a voltage regulator in applications where current must be limited or managed. The component also acts as a noise filter by attenuating high-frequency signals. This is done by placing an inductor in series with the resistor. When an AC signal is applied, the inductor creates a magnetic field and increases the phase shift in the current. This prevents high-frequency signals from passing through the resistor and reduces any interference from outside sources.Conclusion:The H818RFYA through-hole resistor is an excellent choice for a variety of electronic applications. Its superior temperature stability and low noise performance make it an ideal choice for high-heat, high-vibration, and low-noise requirements. Its low power consumption and wide range of uses make it a versatile component for use in industrial, automotive, and consumer electronics applications. The tight tolerance range and noise reduction features also make it a suitable choice for applications requiring precise control and low interference.

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