CW02B4R300JE12HE

Series:	CW
Packaging:	Bulk
Part Status:	Active
Resistance:	4.3 Ohms
Tolerance:	±5%
Power (Watts):	3.75W
Composition:	Wirewound
Features:	--
Temperature Coefficient:	±50ppm/°C
Operating Temperature:	-65°C ~ 350°C
Package / Case:	Axial
Supplier Device Package:	Axial
Size / Dimension:	0.188" Dia x 0.562" L (4.78mm x 14.27mm)
Height - Seated (Max):	--
Number of Terminations:	2
Failure Rate:	--

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Through Hole Resistors are major components of all electronic circuits, providing resistance values that are highly reliable and accurate. One type of resistor that offers a combination of low cost and reliability is the CW02B4R300JE12HE Through Hole Resistor. Its application field and working principle are outlined below.Application fieldThe CW02B4R300JE12HE Through Hole Resistor is mainly used in applications such as power system protection, industrial automation, medical equipment, motor commutation, vibrator circuits, capacitor selection, and electromagnetic interference. Its wide range of uses make it a versatile and reliable component, suitable for use in various projects.Working principleThe CW02B4R300JE12HE Through Hole Resistor operates under the principle of Ohm’s law, in which the current is proportional to the voltage. This relationship is demonstrated by the equation V = I x R (where V represents the voltage, I the current, and R the resistance). When a voltage is applied to the resistor, the current passing through it is restricted depending on the resistance value.The resistance value of the CW02B4R300JE12HE Through Hole Resistor is accurately designed, so that the amount of current passing through it is stable and reliable. To ensure that it is capable of performing its role consistently, each resistor is also designed with a high level of precision. This also ensures that the resistor has a high measure of accuracy.ConstructionThe CW02B4R300JE12HE Through Hole Resistor is constructed using two basic components: a substrate material and a semiconductor material. The substrate material is used as the insulating part of the resistor, while the semiconductor material (usually composed of silicon dioxide or alumina) is used to control the hole’s resistance.The hole through which the current flows is etched or drilled through the substrate, and it is filled with the semiconductor material to control the resistance. This hole is lined with copper alloy plating to ensure reliable connections.The holes of the resistor can be made in various shapes and sizes, depending on the needed resistance value. Also, depending on the application, different manufacturing techniques may be used, such as thick-film technology, thin-film technology, low-temperature co-fired ceramics (LTCC), or high-temperature co-fired ceramics (HTCC).ConclusionThe CW02B4R300JE12HE Through Hole Resistor is a reliable, low cost resistor that is used in a variety of applications, such as power system protection, industrial automation, medical equipment, motor commutation, vibrator circuits, capacitor selection, and electromagnetic interference. It works under the principle Ohm’s law, with the current being proportional to the voltage applied, and it is constructed using a substrate and a semiconductor material. The holes through which the current flows is etched or drilled through the substrate, and it is filled with a semiconductor material to control the resistance. Different manufacturing techniques can be used to alter the shape and size of the holes, as well as to achieve different resistance values.

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