40F7K5E Datasheet/PDFThrough Hole Resistors
Through-hole resistors have their two leads in opposite ends of a cylindrical ceramic body in which the electrical resistance is distributed. They are named this way because they are soldered into a PCB, they have two concentric circular leads that extend through the bottom of the ceramic body into a hole in the board. 40F7K5E is one type of through hole resistors.
Application Field and Working Principle
Through hole resistors are widely used in radio and communication equipment, industrial equipment, computer boards and electronic payment systems, and other electronic devices where high accuracy and reliability are necessary. Some military and aerospace applications require through hole resistors for their high reliability in extreme environments.
The 40F7K5E resistor works by reacting to an electric current flowing through the resistor with an electrical resistance, resulting in thermal energy being created in the resistor. The 40F7K5E resistor works on the basic principle of Ohm\'s law and is designed to provide a precise and stable resistance value to the circuit. It has a very low temperature coefficient and can remain stable over long periods of operation, even in varying environmental conditions.
The 40F7K5E resistor is usually made from a ceramic material with a low coefficient of thermal expansion to ensure consistency when electrically energised. The resistor also features a ceramic-metal layer to protect the construction and resist corrosion. This increases the accuracy and reliability of the component, as well as its resistance to environmental factors such as temperature, humidity, and vibrations.
The 40F7K5E resistor is ideal for use in switch mode power supplies, as it offers a high voltage rating and superior surge handling. They are also suitable for applications such as attenuator, predictive brake systems, autotransformers, and electronic loads. They are well known for their ability to withstand high temperatures and sustained exposure to high electrical current.
The 40F7K5E resistor is one of the most reliable and accurate types of resistors and is incredibly durable and cost-effective. The resistor’s features make it the ideal choice for many applications where high accuracy and reliability are essential.