Inductors are one of the three major passive components and one of the three basic components in the circuit. They play an extremely important role in the circuit. Inductors are widely used and can play a variety of roles in the circuit: filtering, frequency modulation (impedance matching), boost/buck, energy storage, etc. In order to be suitable for various circuits, inductors have gradually evolved into multiple categories.
（★ If you want to know more information, you can refer to the following article: •Inductors are Used in High Frequency Circuits and Switching Power Supplies）
For example, RF inductors are mainly used for impedance matching in RF circuits of various wireless communication devices. Together with some high-frequency capacitors, they are matched into different RF circuits in the hands of RF engineers. They are used in: WiFi, Bluetooth, Zigbee, 2G, 3G, 4G, 5G…
In short, all wireless communications rely on our RF inductors, from the TV remote control you hold while sitting on the sofa at night to the car keys you hold while looking for your parked car in the underground garage of a large shopping mall. RF inductors come in a wide variety of types, including stacked RF inductors and wound RF inductors. The global leader in this field is Murata Manufacturing. Zhenhua is located in Shenzhen, China, and has more than two decades of factory operation experience.
Power inductors, an indispensable and important component in DC-DC circuits, have evolved into many categories today: wire-wound power inductors, alloy power inductors (also called one-piece molding, also called molded power inductors), combined power inductors, etc. As far as wire-wound power inductors are concerned, they range from low-end CD-type power inductors (also called open magnetic circuit power inductors, to put it simply, they are not wearing clothes, and you can see the sexy copper wire at a glance. This kind of inductor flirts with other components everywhere, which is electromagnetic interference), to fully automated NR inductors (also called magnetically sealed power inductors, wearing a handsome tuxedo, NR inductors are also relatively honest, do not discharge electricity or flirt, and are not easy to change bad and change their hearts), to magnetic shielding cover inductors (called magnetic shielding cover inductors or shell inductors, this guy wears a thick armor, and looks invulnerable to electromagnetic interference, but the equipment is more expensive).
At present, the mainstream of this type of wound power inductor is NR (magnetically sealed power inductor), which has a fully automated production process, high product consistency, and a unit PPM defect rate of less than 5PPM. NR inductors have become the first choice of many engineers in DC-DC circuits due to their low price, excellent quality and high consistency. The first to launch NR inductors was the Japanese brand: TAIYO YUDEN.
Wire-Wound Power Inductors With Magnetic Shielding Covers:
Wire-wound power inductors with magnetic shielding covers have excellent shielding effects and are the first choice for engineers in many high-end fields. Japanese brands include big brothers TDK and Sumida, which occupy a large share of trial production in the medical equipment and automotive fields; German brands include Murth, which dominates in power equipment, electric meters, industrial control and other fields; American brands include Coilcraft, EATON, and PULSE, which dominate in various servers, industrial fields, automotive electronics and other markets; domestic brands include Zhenhua, Sunlord, Changjiang Microelectronics, Fenghua, Wenshan, etc.
Alloy Inductor (Integrated Inductor):
Alloy inductor (integrated inductor), the most beautiful in the power inductor family, has both high current and high appearance (shiny alloy appearance). In the past, alloy inductors were only used in high-end fields such as laptops, servers, industrial fields, and medical equipment. Nowadays, after mass production by large Chinese manufacturers, alloy inductors have retained the characteristics of high current and alloy inductors, and the high price has also disappeared. The price of alloy inductors (integrated inductors) is becoming more and more affordable. The NR inductor next door is trembling, and the magnetic shielding inductor is already clamoring to hang itself.
The market share of alloy inductors (integrated inductors) is getting bigger and bigger, from automotive grade to medical, industrial control, aerospace, nuclear industry, everything; to mobile power supplies, routers, electronic cigarettes, TV boards, computer boards, set-top boxes, Gute hard drives, etc., alloy inductors have won the trust of many engineers with their high appearance and high cost performance.
The First Brand in the World to Launch Alloy Inductors (Integrated Molded Inductors) is VISHAY.
Europe: Murth.
The United States: Vishay, Coilcraft, Eaton, Puse.
Japan: TDK, Murata, SUMIDA, Toko.
China (including Taiwan): Zhenhua, Sunlord, Changjiang, Magna, Cyntec, Chilisin.
Regarding integrated molded inductors (alloy inductors), we believe that in the next 5-10 years, they will become the high-quality, cost-effective inductors with the largest production capacity and the largest shipment volume among all power inductors. At present, brands including Zhenhua, Sunlord, and Changjiang Micro-Electric have launched a number of automotive-grade integrated molded inductors. At present, many domestic new energy vehicle brands and new car-making forces have been in full swing on the road to localization. I believe that in the near future, Zhenhua’s market share in automotive electronics, medical equipment and industrial fields will be further improved.
Zhenhua was established in 2001, and is a leading technology developer for the passive component industry, working across multilayer chip inductor, wire wound chip inductor, common mode choke, NTC thermistor, transformer and Capacitors. Our product lines have been widely applied to communications, consumer, computer, lighting, security, smart grid, medical equipment, automotive, aerospace and etc.
Other advantages include:
Fully automated manufacturing
High-reliability AEC-Q200
ISO 9001 quality standards
RoHS compliant
REACH compliant
Why choose Zhenhua?
Our company has more than 1,000 types of inductors and 24 years of experience in this field. It is a product that produces extremely low resistance over a wide frequency range. Zhenhua is widely recognized by a global technical team for designing, manufacturing, and providing high-quality, high-performance signal integrity and noise filtering solutions.
Zhenhua brand inductors, or 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: info@smdinductor.com.
