Decoding the Significance of "4R7" Marking on an Inductor
An inductor, also called a choke coil, is a passive electronic component used to store and release electrical energy. It consists of a wire or coil, typically wound around a magnetic core. When current flows through an inductor, the generated magnetic field causes energy conversion between the current and the magnetic field. Inductors store electrical energy based on their inductance value and regulate the flow of current based on the operating frequency.
We generally in the purchase of inductors will find that there are some letters and number combinations on the inductor, so do you know what these letters and numbers mean? The different values of the postposition are also different for the performance characteristics of the inductor. For example, Type 4R7 Inductor.
4R7 Inductors
2R2 Inductor
The “4R7” mark on the inductor indicates its nominal inductance value. “4” represents the first digit, and “R7” represents the decimal multiplier. The letter “R” is often used in place of a decimal point in the inductor marker to distinguish it from other numerical values. Thus, “4R7” indicates that the inductance is 4.7. microhenri (µH)
In summary, the “4R7” mark on the inductor indicates that the inductance value of the inductor is 4.7 microhenri. Knowing what this marker means is critical for both engineers and users, especially when designing circuits that require efficient energy storage, noise filtering, or voltage regulation. Make informed decisions in our electronic design to ensure optimal project performance and reliability.
