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.
(★ If you want to know more information, you can refer to the following article: •The Difference Between Shielded Inductors and Unshielded Inductors | Zxcompo Inductor Factory)

When we are generally in the purchase of inductors, we 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.
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 microhenries. 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.

Zxcompo products include multilayer power inductors, wound surface mount inductors, and molded surface mount inductors for power and signal lines. A full range of passive electronic and magnetic components, including inductors, capacitors, resistors, transformers, and filters, is available. Our products are widely used in automotive, telecommunications, consumer electronics, and other fields. Each product is designed to achieve performance and maximize signal and power efficiency while saving space.
Other advantages include:
Fully automated manufacturing
High-reliability AEC-Q200
ISO 9001 quality standards
RoHS compliant
REACH compliant
Why choose Zxcompo?
Our company has more than 1,000 types of inductors and 15 years of experience in this field. It is a product that produces extremely low resistance over a wide frequency range. Zxcompo is widely recognized by a global technical team for designing, manufacturing, and providing high-quality, high-performance signal integrity and noise filtering solutions.
Zxcompo brand inductors, also known as coils or reactors, are passive electronic components that resist changes in the current flowing through them. Core material, winding type and geometry play a critical role in the performance of power inductors. Shipping worldwide. Simply contact us for samples: sales@ZXcompo.com.