Series:	CW
Packaging:	Bulk
Part Status:	Active
Resistance:	3.9 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: CW02B3R900JE12HE Application Field and Working Principle

Through hole resistors are an indispensable part of electronic devices. They come in a variety of shapes and sizes, from discrete packages to wires. The most commonly used through hole resistors are carbon or metal film resistors, metal oxide resistors, and wirewound resistors. One of the most popular through hole resistors is the CW02B3R900JE12HE, a precision wirewound resistor with low thermal noise characteristics that is suitable for both analog and digital circuits.The CW02B3R900JE12HE through hole resistor has a 9 ohm rating with a 2 percent accuracy, and is rated for 12 watts of power. It also has a wide operating temperature range of -55°C to +125°C. This resistor has an epoxy coating, which offers extra protection against both short-term and long-term environmental damage. Its compact size makes it suitable for use in a wide range of applications, including medical, automotive, and audio devices.When it comes to understanding the working principle of through hole resistors, it is important to note that they rely on the properties of resistors to limit current flow. A resistor is made up of an element that resists the flow of electricity, usually a wire or film. When a voltage is placed across a resistor, it will cause a current to flow through it, which is limited by its resistance. This current is labeled as the “resistor current.”In the case of the CW02B3R900JE12HE, the resistance is 9 ohms. The current that passes through the CW02B3R900JE12HE can be calculated using Ohm’s law, which states that the current (I) can be found by dividing the applied voltage (V) by the resistance (R). This formula can be expressed as follows: I = V / R.Therefore, if a voltage of 12 volts is applied to the CW02B3R900JE12HE, the current that will pass through it can be calculated using the formula above. If 12 volts is divided by 9 ohms, the current that will flow through the resistor will be 1.33 Amps.Finally, it is important to note that the resistance of resistors is inversely proportional to the temperature. As the temperature increases, the resistance of the resistor will decrease. This means that the current that passes through the resistor will increase if the temperature rises. Additionally, it is important to ensure that the power rating of the resistor is not exceeded in order to prevent thermal damage or breakdown.The CW02B3R900JE12HE through hole resistor is an important component in a wide variety of circuits and devices, and its wide operating temperature range and epoxy coating make it suitable for many applications. Additionally, its high precision characteristics and low thermal noise make it a reliable choice for both analog and digital circuits. Understanding the working principle behind through hole resistors and how they are affected by temperature can help engineers create robust and reliable circuits.

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