H8348RBYA

Series:	Holco, Holsworthy
Packaging:	Bulk
Part Status:	Active
Resistance:	348 Ohms
Tolerance:	±0.1%
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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Through Hole Resistors: H8348RBYA Application Field and Working Principle

Through hole resistors are an essential component in electronic circuits used to control currents and ensure electrical signals are sent through correctly. The H8348RBYA is a popular type of through hole resistor, offering a variety of features and benefits that make it suitable for a range of applications. This article will provide an overview of its application fields and working principle.

Application Fields

The H8348RBYA through hole resistor is a heat-resistant component that is designed to be mounted onto a printed circuit board (PCB). It is often used in power supply circuits and communication equipment as well as in military and aerospace applications. As it is formed with a coated cylinder longer than the resistive element, it is able to handle a higher overload current than many other resistors. This makes the H8348RBYA an ideal choice for high-power applications, including those in which it is necessary to reduce the amount of radiative energy produced in the circuit. It also has tolerance accuracy down to 0.02%, meaning it has a very precise resistance even under extreme conditions.

Working Principle

The H8348RBYA resistor consists of a resistive element (often referred to as the ‘chip’) mounted onto an insulating substrate. The chip contains two metal plates separated by a very thin non-conductive material, usually ceramic. The plates are encased in an encapsulated package, usually made from a moisture-resistant material such as epoxy. The two plates are connected to each other by a bridge, an interconnecting element, and the resistance is determined by the electrical properties of the material between the two plates. The current across the resistor is determined by the resistance value of the material between the two plates, which is adjusted by controlling the width of the gap between the plates. The H8348RBYA through hole resistor also includes a secure fixing sleeve around the resistor element. This is designed to ensure it remains in place during operation and to reduce the chance of it being damaged or dislodged accidentally. It also helps to reduce the gap between the plates and its overall size, which helps to reduce the amount of energy lost during operation.

Conclusion

The H8348RBYA through hole resistor is a heat-resistant component that is often used in power supply circuits, communications equipment, and military and aerospace applications. It is able to handle a higher overload current than other resistors, and its tolerance accuracy of 0.02% makes it ideal for high-power applications in which radiative energy needs to be kept to a minimum. The resistor is composed of two metal plates separated by a non-conductive material, and the resistance is adjusted by the width of the gap between the plates. The H8348RBYA also features a secure fixing sleeve to keep it in place and reduce energy lost during operation, making it a reliable and efficient type of through hole resistor.

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