41F390E

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Resistor is an essential component in electric circuit. It provides resistance to the current flow in the design of voltage, current, power and other parameters. Through hole resistor (THR) is among the most popular package of resistor. It provides an electrical connection, mechanical support, protection for lead wires and several other types of resistors. Here, the topic for discussion is 41F390E, THR resistor, which is used in a variety of application fields.

Description

41F390E is a surface mount resistor which belongs to the family of through hole resistors. It is a three terminal surface mount device which takes up very minimal board space. It has low profile design and wide terminal lead spacing. It has top and bottom sides, both with pins or leads for contacting with the board. This THR resistor has a power rating of 0.125W. Its operating temperature range is -55°C to +155ºC. According to the data sheet from the manufacturer, the 41F390E is compliant to military standard MIL-STD-202D. It is also UL approved. It is rated for 259V/1A continuous current rate, 500V/2A surge current rate at 25ºC.

Application Fields of 41F390E

The THR resistor 41F390E is most suitable for use in industrial, automotive, power and other applications with high vibrational and thermal stresses. It is used where space is a consideration and miniaturization is needed. It is ideal for high wattage, surface mount assembly applications such as power supplies, DC/DC converters, RF amplifiers, and low voltage or high power switch designs. Furthermore, it has clean electrical behavior characteristics that allow it to be used in current sensing and current limiting in switching power supply applications.

Working Principle of 41F390E

The working principle of THR resistor 41F390E is quite simple. It consists of a resistive element with two leads that are passed through a hole in the printed circuit board (PCB). A piece of metal is soldered to the top and bottom side of the resistor and the resistor is fixed to the board. When the current flows through the resistor, the resistive element dissipates heat. Therefore, voltage differences will cause a current to pass through the resistor. This current is equal to the resistance multiplied by the voltage. Thus, this resistor offers a precise resistance value.

Conclusion

THR resistor like 41F390E is a type of through hole resistor for industrial, automotive, power and other applications. Its tiny package size and low profile design make it an ideal choice for many applications with high vibration and thermal environment. It offers precise resistance value and dissipation of heat, which will help in the design of voltage, current, power and other parameter in the application.

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