What is a molding choke?

2024-07-20

What is a molding choke?

Molding Chokes are also called power inductors. Consists of metal powder, electrodes, and coils. In this design, the coil body is immersed in metal magnetic powder and die-cast. The pins are directly formed on the base's surface, simplifying the winding process. This inductor features an SMD structure that enhances durability during use while also boosting production efficiency.

Their emergence is attributed to the development of computer motherboard technology and power supply technology: CPU frequency is getting higher and higher, so the requirements for stable power supply and filtering are very high. Integrated inductors solve this problem. The problem is that it can work for a long time under high current conditions and can provide stable power supply to the CPU. Of course, the most important function of the inductor is filtering. In this regard, the integrated inductor is not inferior. Good material properties and special design make the inductor structure more stable and have lower impedance, so it has higher efficiency.

Advantages of Molded Chokes in Inductor Technology

Recently with the rapid increase in demand for computing power, AI chips, particularly data center AI chips, are undergoing accelerated development towards high performance and power efficiency. Among chip inductors, the molding choke stands out as the epitome of excellence due to its outstanding characteristics, as below:

1. Enhanced Durability: The molded construction provides protection to the coils and components within, shielding them from environmental factors such as moisture and dust.
2. Improved Thermal Performance: The housing material of molded chokes often aids in heat dissipation, allowing the inductor to operate at higher temperatures without compromising performance.
3. Compact Size: The integrated design of molded chokes results in a compact form factor, making them ideal for applications where space is limited.
4. Reduced EMI: The encapsulation of the coil and components helps in minimizing electromagnetic interference (EMI), leading to improved signal integrity in electronic circuits.
5. Ease of Installation: With pins directly formed on the base and an SMD structure, molded chokes are easy to install on PCBs, simplifying manufacturing processes.
6. Consistent Performance: The uniform manufacturing process of molded chokes ensures consistent performance and reliability across production batches.

Market Trends and Demand in the AI Industry

According to recent market analysis, the AI industry stands out as the most rapidly growing sector, with significant profitability stemming from cloud-based operations. Notably, the demand for high-current and high-saturation integrated inductor products is particularly pronounced in key application scenarios like data centers and cloud servers. It is anticipated that the utilization of inductors in AI servers within the cloud environment will nearly double compared to traditional server products.

The demand for molding chokes is booming, driven not only by the rapid growth of cloud AI servers, but also by their increasing adoption in end-side devices like AI PCs and mobile phones. These inductors offer excellent electrical characteristics and shielding properties, making them ideal for these compact and performance-driven applications.

HONGDA Capacitors, https://www.hongdacapacitors.com/, the inductors, capacitors specialist! We produce various inductors: molding type, wire wound type, coil type, multilayer ceramic type etc.

REACH RoHS qualified parts, good replacement of Murata Wurth TDK Bourns, etc.

So far we maintain fast delivery for inductors, 6weeks normally.

But we suggest our valued customer to plan their order earlier and spare enough time for our production. We can assure you the quality parts.

Our popular series: HAPM Power Inductor Big Size Molding Type

https://www.hongdacapacitors.com/res/Inductors/hapm-series-power-inductor-big-size-molding-type.pdf

Features with:

Low profile, high current power supplies.

Low loss realized with low DCR.

Ultra low buzz noise.

Comparing to tier 1 brand, we have price, lead time advantage, at least 30% cost down than them.

Below cross for your reference, welcome your rfq to check best.

HD P*N                                  Cross PN                         Brand

HAPM1365F-3R3M-LF    SRP1265A-3R3M    Bourns

HAPM0630F-5R6M-LF    SRP7028A-5R6M    Bourns

HAPM0650F-2R2M-LF    74437349022        Wurth

HAPM0530F-4R7M-LF    SRP5030TA-4R7M    Bourns

HAPM0420F-R47M-LF 0.47uF 20%

HAPM0420F-R36M-LF      0.36uH 20%

HAPM0420F-R22M-LF   0.22uH 20%

HAPM0415F-2R2M-LF 2.2uH 20%

HAPM0415F-1R5M-LF 1.5uH 20%

HAPM0415F-1R0M-LF 1.0uH 20%

HAPM0630F-R33M-LF 0.33uH 20%