Industry Application丨How High-End MLCC Enables AI-Empowered Robots to Enjoy Smoothness after Iteration
Source: Weirong Technology Author:
With the advent of the digital intelligence wave, global competition is gradually focusing on the integration of embodied intelligence and vertical scenarios. A robot revolution empowered by AI is opening the curtain on industrial transformation.
At the Spring Festival Gala in 2025, 16 Unitree H1 humanoid robots from Hangzhou Yushu Technology danced on the same stage with 16 dancers from Xinjiang Arts Institute, presenting a series of complex dance movements.

((Source: Internet)
In May 2025, Tesla's Optimus robot began the countdown to trial production at its Fremont factory. Musk announced that thousands of robots would be deployed in the factory to "work" by the end of the year.
(Tesla Optimus robot)
During the same period, the 1,000th general-purpose body-mounted robot of domestic Zhiyuan Robot was debugged. The GO-1 large model it is equipped with can now complete complex tasks such as hanging clothes and riding bicycles through natural language instructions, truly achieving one-time training and lifelong evolution。
(Source: Zhihui Jun's social media)
Behind these phenomena lies the infiltration of artificial intelligence into the physical world. These modern robots that integrate cutting-edge technologies are empowering intelligent terminals in all scenarios and gradually becoming the core force in reconfiguring human production and lifestyle.The technical foundation of the robot's core system What is a robot? The answer to this question is being redefined. Traditional industrial robots are like "mechanical puppets", relying on preset programs to perform fixed actions, while modern robots have already acquired a complete closed-loop capability of "perception - decision-making - execution". MLCC (Multilayer Ceramic Capacitor), as a core passive electronic component, has permeated into six key modules of modern robot architectures, playing an irreplaceable role: Control system: MLCC is used to decouple the power supply of the main control chip to ensure that the robot's motion planning algorithm runs in real time without delay. Drive system: The bus capacitor of the servo motor inverter needs to adopt high-voltage MLCC, which can withstand pulse voltages above 200V to filter the motor drive. Communication module: Realizes RF front-end filtering and power supply voltage stabilization. Power management system: Suppression of transient voltages it bears and energy storage buffering. Human-computer interaction system: Controls the coupling of audio signals and the stability of camera signals. Bionic system: used for controlling the high-frequency response and stability of signals.

The demand for MLCC from different types of robots in diverse environments
With the iterative optimization of AI algorithms and the popularization of edge computing architectures, robots are evolving from single-function executors to intelligent terminals with environmental perception and autonomous decision-making capabilities.
This technological leap not only reshapes the application boundaries of robots but also imposes performance requirements on the core passive component MLCC, such as high frequency (5GHz+), low loss (ESR), and wide temperature range (-55 ° C to 150 ° C +).
PART.01
Industrial robot
Industrial robots represented by welding robots and AGVs mainly operate in harsh environments with temperatures above 60℃ and vibrations of 10G.
Each industrial robot requires 1,000 to 5,000 MLCCS. Due to its harsh working environment, there is an urgent need for highly reliable MLCCS to ensure the stable operation of the equipment under complex working conditions.

In recent years, the global installation volume of industrial robots has continued to rise and has exceeded 500,000 units for several consecutive years. From 2018 to 2023, the compound growth rate is 5%. According to the International Federation of Robotics (IFR), the installed base of process robots is expected to exceed 600,000 units by 2027.

(Data source: World Robotics Report)
The performance of the Chinese market is on par with the global growth trend. In the domestic market, local suppliers account for 47% of the share, demonstrating strong competitiveness.
PART.02
Consumer robot
From intelligent cleaning to early education, consumer robots are integrating into modern life in diverse forms.
Consumer robots such as sweeping robots and educational robots need to strike a balance between miniaturized design and high-frequency data processing, which leads to the usage of MLCCS in a single machine reaching 500 to 4,000.
To meet the miniaturization demands of consumer robots, MLCCS in 0402/0201 packages account for over 70%, thus making the focus on high capacity and miniaturization the main development direction of MLCCS in this field.

Mainly cleaning robots, compared with industrial robots, have a wider range of service targets and a larger market size, and are an important driving force for the growth of the robot industry. Since 2023, the installation volume of consumer robots has exceeded 500,000 units for three consecutive years, with a compound annual growth rate of 10%, demonstrating a vigorous development trend.

PART.03
Special robots
Due to the special working environment of special robots, the requirements for MLCCS are extremely strict. The single-machine MLCC usage can reach 5,000 to 8,000 pieces, and they need to withstand a wide temperature range of -55 ℃ to 150℃ as well as high-pressure environments.以上翻译结果来自有道神经网络翻译(YNMT)· 通用场景

Although the application of special robots is relatively single, their usage requirements are extremely high. With the continuous advancement of technology and the integration of new technologies such as multimodal perception fusion and autonomous navigation, the overall performance of global special robots has been continuously improving, enabling them to better adapt to complex environments and task requirements.
(Source: Huajing Industrial Research Institute)
Its global market size has also been growing year by year. By 2024, it has reached nearly 14 billion US dollars, demonstrating huge potential in special fields.The technical differentiation of robot MLCC selection based on application scenarios The usage specifications of MLCC also vary among different types of robots.PART.01Industrial robotic arm The main structure consists of three units: the Teach pendant, the Controller and the Connect module.

(Block diagram of industrial robotic arm structure)
As a high-precision actuator, the robotic arm has strict requirements for the dielectric stability and spatial adaptability of MLCC.
Among them, typical application specifications include:
0402/X7R/100nF/50V: Suitable for high-frequency filtering scenarios in servo drive circuits, the X7R medium combines the advantages of temperature stability and capacity density.
0402/X5R/1μF/10V: It is often used for energy storage filtering in control modules. The 1μF capacity value meets the transient energy compensation requirements of medium and small power signal chains.
0402/X5R/10μF/10V: Applied in low-voltage signal processing units, the 10μF capacity rating meets the energy storage optimization design requirements of long-endurance systems.

PART.02
AGV mobile robot
The main structure is composed of four major units: System Control, Lifter, Connect Module and Power Supply.

(Block diagram of AGV mobile robot structure)
For this type of mobile platform that requires both power drive and navigation control, the selection of MLCC focuses on the withstand voltage grade and mechanical vibration adaptability. Typical specifications are as follows:
0402/X7R/100nF/50V: It is responsible for high-frequency noise suppression in the battery management system, and the 50V withstand voltage is compatible with the voltage platform of multi-string lithium battery packs.
0402/X5R/1μF/16V: It is used for power filtering in navigation modules. The 16V withstand voltage design meets the surge protection requirements of vehicle power systems.
0805/X5R/2.2μF/10V: Used as an energy storage capacitor in the drive motor controller, with a larger package size to meet the heat dissipation requirements under high current conditions.

PART.03
Humanoid robot
The main structure is composed of four major units: the control system, the perception system, the end effector and the drive system.

(Block diagram of the humanoid robot structure)
Humanoid robots possess the characteristics of complex joint drive and multi-sensor fusion, requiring a huge current. Therefore, the selection of MLCCS for them has diversified features. Typical specifications include:
0402/X7R/100nF/50V: The universal specification is widely used in joint drive circuits, balancing capacity requirements and miniaturized design.
0805/X7R/100nF/250V: It undertakes the safety isolation function in the high-voltage servo system, and the 250V withstand voltage meets the insulation design requirements of the power unit.
1206/X5R/10μF/50V: The energy storage circuit applied to the core computing module, with a large-sized package supporting high capacitance output to cope with instantaneous power fluctuations.
The scale and trend of MLCC in the robot market
MLCC is widely used in various key parts of robots. Different parts have different requirements for its performance and specifications, which also determines its proportion and value in the cost of robots.

(XIAOMI DOG)
Take XIAOMI DOG as an example. They have their own characteristics in the usage of MLCCS of different sizes, and the usage of high-capacity and low-capacity MLCCS also varies.
(Comparison chart of the usage of different packages)

(Comparison chart of high and low capacity quantities)
Overall, the usage of MLCCS in robots shows a development trend of small size, high voltage and high capacity proportion.
Build a differentiated product matrix across multiple fields
In line with the development trend, Micro-rong Technology, with over two decades of experience in MLCC, has built a differentiated product matrix in response to the high reliability requirements of MLCC in robot application scenarios, breaking the technological monopoly of Japan and South Korea and achieving breakthroughs in multiple fields:
High-capacity series: The maximum capacity has exceeded 220μF, meeting the required conditions for MLCC in control systems.
Micro series: 0201-0402 size series are available and widely used in high-frequency filter circuits in robot systems
High-temperature resistant series: 105℃-150℃ high-temperature coverage, meeting the temperature resistance requirements of robots in cutting-edge environments.
High-voltage series: 100V-3000V voltage coverage, meeting the pulse voltage requirements of servo motors and other applications.
Automotive-grade series: Compliant with the AEC-Q200 automotive industry standard, it meets the adaptability of robots to high reliability and harsh environments, providing safety guarantees for robot systems

As a leading enterprise in the MLCC industry, Weirong Technology has focused on high-end application layout of MLCC products, precisely concentrating its corporate positioning on the independent research and development and production of high-end MLCCS. It has fully introduced advanced production and R&D equipment in the industry, and is committed to building a digital intelligent manufacturing and R&D design platform. Through technological means, it ensures that product quality meets standards.

Standing at the inflection point of technological integration, what we witness is not only the evolution of robots, but also the paradigm shift of the entire intelligent hardware industry. When every technological node is paving the way for general intelligence, the future technological landscape is no longer a solo performance of a single technology, but a symphony composed by computing power, materials and algorithms together.
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