EY271KE

Series:	EY
Packaging:	Bulk
Part Status:	Active
Resistance:	270 Ohms
Tolerance:	±10%
Power (Watts):	2.5W
Composition:	Ceramic
Features:	Moisture Resistant
Temperature Coefficient:	-1500/ -900ppm/°C
Operating Temperature:	-40°C ~ 110°C
Package / Case:	Axial
Supplier Device Package:	--
Size / Dimension:	0.370" Dia x 1.819" L (9.40mm x 46.20mm)
Height - Seated (Max):	--
Number of Terminations:	2
Failure Rate:	--

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EY271KE Through Hole ResistorsThrough hole resistors are a type of electrical component primarily used to limit current in an electrical circuit. They are available in many sizes and shapes, all consuming relatively little energy and providing superior durability and performance. With its low resistance values, the EY271KE through hole resistor is popularly used for applications such as voltage sensing, current limiting, or undervoltage protection. The article takes a closer look at the EY271KE\'s application field, and examines its working principles.Application FieldThe EY271KE through hole resistor is a commonly used resistor with a rated power of 0.125W, a resistance tolerance of +/-5% and a temperature coefficient of 100ppm/ degrees Celsius. As such, it is ideal for applications in the automotive industry, electrical systems for consumer electronics, and industrial control systems.The resistor is suitable for use in DC or AC circuits. It can limit currents up to 2A in DC circuits, and it can handle up to 1A in AC circuits. The EY271KE\'s maximum breakdown voltage is 40V, enabling it to provide protection against surges in the circuit. It also has a high surge withstand capability, making it a great choice for transient and noisy environments.In automotive applications, the EY271KE can be used in dashboard gauges, warning lights, and starter systems. Moreover, it can also be used in engines, alternators, cooling fans, and fuel injectors. In cordless drills and power tools, it is used to regulate and limit current during the start-up phase.Consumer electronics devices such as TVs, cell phones, and laptop computers also rely on the EY271KE resistor to regulate current in their circuits. Furthermore, it can be used in industrial equipment to provide temperature protection, circuit protection, and undervoltage protection.Working PrincipleThe working principles of the EY271KE through hole resistor can be explained in three key steps.Firstly, when current passes through the resistor, it is forced to flow around it. This creates a voltage drop in the circuit, and the magnitude of the voltage drop is determined by the resistor\'s resistance value.Secondly, the resistor dissipates energy as heat. The amount of heat generated is inversely proportional to the resistor\'s resistance. In other words, if the resistor has a low resistance, more heat is generated.Thirdly, as the resistor heats up, its resistance increases slightly. This increases the voltage drop, reducing current flow through the resistor. The result is a self-regulating resistor, which is able to limit current flow without requiring an external voltage source.ConclusionIn summary, the EY271KE through hole resistor is a versatile component, used for multiple applications in automotive, consumer electronics, and industrial systems. Its low resistance values, high surge withstand capability, and low thermal coefficient make it an ideal choice for current and voltage sensing applications. Its working principles are fairly straightforward and can be understood by studying the three steps mentioned above.

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